development of amendments to the imsbc … 18-wp.4 - development of... · the sub-committee that a...

I:\DSC\18\WP\4.doc

E

SUB-COMMITTEE ON DANGEROUS GOODS, SOLID CARGOES AND CONTAINERS 18th session Agenda item 6

DSC 18/WP.4

18 September 2013 Original: ENGLISH

DISCLAIMER

As at its date of issue, this document, in whole or in part, is subject to consideration by the IMO organ to which it has been submitted. Accordingly, its contents are subject to approval and amendment

of a substantive and drafting nature, which may be agreed after that date.

DEVELOPMENT OF AMENDMENTS TO THE IMSBC CODE AND SUPPLEMENTS, INCLUDING EVALUATION OF PROPERTIES OF SOLID BULK CARGOES

Report of the Working Group

General

1 The Working Group on Amendments to the IMSBC Code met from 16 to 18 September 2013 under the chairmanship of Dr. S. Ota (Japan).

2 The group was attended by delegations from the following Member Governments:

ARGENTINA AUSTRALIA BRAZIL CANADA CHILE CHINA COOK ISLANDS DENMARK FINLAND FRANCE GERMANY GREECE IRAN ITALY

JAPAN LIBERIA MARSHALL ISLANDS NIGERIA NORWAY PHILIPPINES POLAND REPUBLIC OF KOREA RUSSIAN FEDERATION SWEDEN THAILAND THE NETHERLANDS UNITED STATES VENEZUELA

and observers from the following non-governmental organizations in consultative status:

INTERNATIONAL CHAMBER OF SHIPPING (ICS) BIMCO INTERNATIONAL ASSOCIATION OF DRY CARGO SHIPOWNERS

(INTERCARGO) ICHCA INTERNATIONAL LIMITED (ICHCA) INTERNATIONAL GROUP OF PROTECTION AND INDEMNITY ASSOCIATIONS (P & I CLUBS) INTERNATIONAL BULK TERMINALS ASSOCIATION (IBTA) INTERNATIONAL IRON METALLICS ASSOCIATION (IIMA)

DSC 18/WP.4

I:\DSC\18\WP\4.doc

Terms of reference 3 Taking into account the comments and decisions made in plenary, the working group was instructed to:

.1 further consider the proposals emanating from E&T 18, taking into account document DSC 18/6 (paragraphs 45.8, 45.9, 45.10);

.2 further consider the matter related to a new section for environmentally

hazardous substances within the IMSBC Code in relation to the revised MARPOL Annex V, which would include a list of solid bulk materials, taking into account documents DSC 18/6/10 and DSC 18/INF.5;

.3 consider how to develop a training course enabling seafarers and port

personnel to improve the safe transport and operation procedures involving solid bulk cargoes and advise the Sub-Committee accordingly;

.4 further consider the matter related to iron ore fines, in particular on new test

procedure for determining TML of iron ore fines; and the principle for exemption on requirements for Group A cargoes based on goethite content, based on the report of correspondence group and the TWG, taking into account documents DSC 18/6/27, DSC 18/6/28 and DSC 18/6/29;

.5 finalize the draft amendment to the individual schedule for iron ore and the

draft schedule for iron ore fines; .6 prepare a draft DSC circular on early implementation of the draft

amendments to the IMSBC Code relating to the draft schedule for iron ore fines;

.7 further consider proposals for individual schedules and relevant

requirements in the IMSBC Code, based on documents DSC 18/6/2, DSC 18/6/3, DSC 18/6/5, DSC 18/6/6, DSC 18/6/7, DSC 18/6/8, DSC 18/6/11, DSC 18/6/12, DSC 18/6/15 to 20, DSC 18/6/21, DSC 18/6/22, DSC 18/6/23 to 26, DSC 18/INF.2, DSC 18/INF.3, DSC 18/INF.6, DSC 18/INF.14, DSC 18/INF.16 and DSC 18/INF.17 to 19;

.8 prepare the terms of reference for the Editorial and Technical Group, for its

twenty-first session; and .9 submit a written report by Friday, 20 September 2013.

Report of E&T 18 Numerical reference to the MHB class 4 The group considered document DSC 18/6 (paragraph 45.8) regarding the need for a numerical reference to be inserted in the individual schedules in the section for "Characteristics" and next to the MHB class, in order to identify the type of hazard. Additionally, the group discussed if the inclusion of a notational listing system for identifying MHB cargoes within the Code would be useful (paragraph 45.9).

DSC 18/WP.4

I:\DSC\18\WP\4.doc

5 The group agreed that inserting a numerical reference next to the MHB class in order to identify the hazard for new individual schedules would be useful, and further agreed that it could be included in amendment 03-15 to the IMSBC Code. Therefore, the group recommends E&T 21 to take action accordingly. Bulk Cargo Shipping Names in three languages 6 The group considered documents DSC 18/6 (paragraph 45.10) and DSC 18/6/9 regarding the draft appendix including the Bulk Cargo Shipping Names in three languages (English, French and Spanish) and agreed that the table in the annex to document DSC 18/6/9 should be revised by E&T 21 for consistency. The group also recommended that the inclusion of such appendix should be included in alphabetical order in the three languages in the three translated versions of the Code. Implementation of the revised MARPOL Annex V 7 The group considered documents DSC 18/6/10 and DSC 18/INF.5 (Norway) containing a proposal on the need to compile a new section for environmentally hazardous substances within the IMSBC Code in relation to the revised MARPOL Annex V by developing a list of solid bulk cargoes. 8 Additionally, the group noted that the classification criteria of materials harmful to the marine environment is only contained in the "2012 guidelines for the implementation of MARPOL Annex V", which is a non-mandatory IMO instrument, therefore the group was of the opinion that in order to improve the implementation of the requirements of MARPOL Annex V, it might be necessary to incorporate these criteria into MARPOL Annex V. 9 In this regard, the delegation of the Netherlands stated that, before working on the list of materials harmful to the marine environment, the criteria needs to be made mandatory under MARPOL Annex V, and suggested that the Sub-Committee should invite MEPC to take action on this issue before the list is included in the IMSBC Code. 10 Then, the group recalled that MEPC 65 instructed the Sub-Committee to compile a list of solid bulk cargoes classified as harmful to the marine environment (HME) and to consider the best way forward to progress on these issues. The group also noted that the Sub-Committee agreed that the corresponding list of those solid bulk cargoes should be indicative. 11 Consequently, the group agreed to recommend the Sub-Committee to establish a correspondence group with the following draft terms of reference:

"1 The correspondence group on HME substances within the IMSBC Code in relation to the revised MARPOL Annex V is instructed to:

.1 consider the amendments to the IMSBC Code to facilitate the

implementation of MARPOL Annex V; .2 with regard to issues related to an indicative list of solid bulk

cargoes that may be classified as harmful to the marine environment to:

.2.1 consider how to use the list; .2.2 acquire information on classification of cargoes; and

DSC 18/WP.4

I:\DSC\18\WP\4.doc

.2.3 consider the utilization of experts on the evaluation of hazardous materials, including involvement of the GESAMP working group on the evaluation of the hazards of harmful substances carried by ships and industry experts.

.3 submit a progress report to E&T 21; and

.4 submit a final report to CCC 1."

Assessment of capacity-building implications for the implementation of new measures

12 The group considered document DSC 18/2/2 (Secretariat) regarding the need to develop validated training material to facilitate the safe transport and operation procedures involving solid bulk cargoes. The group noted that some Administrations already require familiarization training on the management solid bulk cargoes to related shore-based personnel. The group, having noted that such material does not exist, agreed to recommend the Sub-Committee that a training IMO Model course on the safe transport of solid bulk cargoes be developed, taking into consideration the following issues:

.1 to develop a generic Model Course, which need not be amended every two years and highlight the regular cycle process of amendments to the IMSBC Code;

.2 consider the learning objectives, according to the different categories of audiences (seafarers and shore-based personnel);

.3 where and if appropriate make reference to the BLU Code and BLU Manual contents;

.4 the material should be suitable to be used for a number of years for technical co-operation activities;

.5 it should maintain the IMO's format used in the existing Model courses;

.6 adapt the training course, in order to recommend the user about the specific needs depending the different levels of responsibility of the related personnel; and

.7 give a clear indication of the training objectives of the training.

13 The group noted with appreciation the willingness of the Australian delegation to make available its expertise on the IMSBC Code (if required), for the development of the training material on the safe transport of solid bulk cargoes.

Iron Ore Fines

New test procedure for determining TML of iron ore fines

14 The group considered annex 1 to document DSC 18/6/13 (Japan) containing the draft amendment to appendix 2 to the IMSBC Code for the inclusion of new test procedure for determining the TML of Iron Ore Fines. Taking this as the base document, the group finalized the corresponding draft amendment to appendix 2 as set out in annex 1 to this document and for inclusion in the draft amendment 03-15 to be prepared by E&T 21.

DSC 18/WP.4

I:\DSC\18\WP\4.doc

15 In this context, the group, in considering the draft individual schedules for IRON ORE FINES (Group A) and IRON ORE (Group C), agreed that for iron ore fines containing more than 35 per cent of total goethite, the individual schedule for IRON ORE should be applied, by doing so, the inclusion of exemption provisions in the individual schedule for IRON ORE FINES was not necessary and this action will improve the clarity and user-friendliness of the schedule. 16 Consequently, the group agreed to apply the requirement for goethite content declaration to Iron Ore Fines containing more than 35 per cent of total goethite, when carried in accordance under the individual schedule for IRON ORE. 17 The group also discussed the potential health hazards that may be associated with this cargo. The group recalled that iron ore fines have already been tested and evaluated in this regard. Additionally, the group noted that these cargoes are not classified as MHB. 18 Finally, the group prepared the draft individual schedule for IRON ORE FINES and draft amendment to the individual schedule for IRON ORE as set out in annex 2 and annex 3, respectively, and for inclusion in the draft amendment 03-15 to be prepared by E&T 21. Draft DSC circular on early implementation of the draft amendments to the IMSBC Code relating to the draft schedule for iron ore fines 19 The group prepared the draft DSC circular on Early implementation of the draft amendments to the IMSBC Code relating to the draft schedule for iron ore fines, as set out in annex 4. The draft circular is expected to supersede the existing DSC.1/Circ.66/Rev.1. Proposals for individual schedules in the IMSBC Code New Caledonian nickel ores 20 The group considered document DSC 18/6/11 (France) regarding new test procedure for NICKEL ORE. France requested delegations to nominate three or four of independent and recognized experts in order to monitor the ongoing research and to validate the new "Vibrating Table with Bit Test" which is being developed. Hence, the group agreed to recommend the Sub-Committee to invite interested Member States and international organizations to contact the focal point1 leading such research. Direct Reduced Iron (C) (By-product fines) 21 The group considered documents DSC 18/6/6, DSC 18/6/7 and DSC 18/INF.3 (Venezuela) together with DSC 18/6/2 and DSC 18/6/3 (IIMA) proposing the inclusion of an individual schedule for high moisture direct reduced iron (C) in the draft amendment 03-15 to the IMSBC Code.

1 Mr. Pierre DUFOUR

Arche Nord – 92055, La Défense cedex, FRANCE Tel: +33 1 40 81 14 96 E-mail: [email protected]

DSC 18/WP.4

I:\DSC\18\WP\4.doc

22 After the technical deliberations, the group agreed to invite Venezuela to consider in future submitting a new proposal for the inclusion of a new individual schedule for this kind of cargo, which should be supported with accurate information and an updated MSDS. 23 The delegation of Venezuela stated that for the time being, this cargo will continue to be carried in accordance with subsection 1.5 on "Exemptions and equivalent measures", as contained in the IMSBC Code. 24 The group agreed that no further action is required for this cargo. Wood Pellets 25 The group considered documents DSC 18/6/5 and DSC 18/INF.2 (Canada). After a technical discussion, the group agreed that it would be recommendable to split the proposed individual schedule for WOOD PELLETS into two individual schedules, e.g. PELLETS WITH ADDITIVES and PELLETS PURE. Therefore, the group further agreed to recommend E&T 21 to prepare the draft individual schedules and to consider the consequential amendment to MSC.1/Circ.1395/Rev.1 on "lists of solid bulk cargoes for which a fixed gas fire-extinguishing system may be exempted or for which a fixed gas fire-extinguishing system is ineffective". Glass Cullet in bulk 26 The group considered document DSC 18/6/8 (Sweden) and agreed, in principle, to include the proposed new individual schedule for GLASS CULLET into the draft amendment 03-15 of IMSBC Code. Nevertheless, the group agreed to invite Sweden to provide further information on the potential liquefaction of this material, as well as information regarding possible health hazards, taking the MHB criteria into consideration. It was also emphasized the need to include some requirement on prevention of injury by sharp edge in the section for "Precautions". In this regard, the group further agreed to recommend E&T 21 to prepare the corresponding draft individual schedule. Sintered Iron Ore 27 The group considered document DSC 18/6/12 and DSC 18/INF.6 (Philippines) containing the individual schedule for sintered iron ore. The group, agreed with the classification in regard to liquefaction characteristics, nonetheless, the group agreed to invite the Philippines to submit to E&T 21 further information on health hazards, including long-term inhalation toxicity taking into consideration the MHB criteria. It was also mentioned that the text in the section for "Description" may need to be reviewed. Boric acid 28 After consideration of documents DSC 18/6/22 and DSC 18/INF.16 (United States), the group agreed, in principle, to include the proposed new individual schedule for boric acid into the draft amendment 03-15 of IMSBC Code. The group agreed to recommend E&T 21 to prepare the draft individual schedule for this cargo. The group wishes to draw the attention of the E&T group to the fact that this cargo might cake when wet, and that the word "damaged" as contained in the section for "Hazard" should be deleted. Iron and steel slag and its mixture 29 Having considered documents DSC 18/6/15 and annex 1 to DSC 18/INF.14 (Japan) regarding the draft individual schedule for iron and steel slag and its mixture, the group

DSC 18/WP.4

I:\DSC\18\WP\4.doc

agreed to invite Japan to provide further information on health hazards, in particular in relation to chromium content, taking into consideration the MHB criteria. The following issues were also pointed out:

.1 the BCSN and the text in the section for "Description" may need to be reviewed in order to differentiate these cargoes from some types of residues;

.2 additional consideration may be necessary on "Precautions" related to bilge

well and dust; and .3 the chemical composition under the section "Description" should match with

the MSDS. Scale generated from the iron and steel making process 30 The group considered documents DSC 18/6/16 and annex 2 to DSC 18/INF.14 (Japan) regarding the draft individual schedule for Scale Generated From Iron And Steel-Making Process. Taking into account the contents composition of the material, the group agreed to invite Japan to provide further information on long-term health hazards taking the MHB criteria into consideration. It was also emphasized that the text in the section for "Description" may need to be revised in order to differentiate these cargoes from "mill-scale" and other residues of other processes. Chemical gypsum 31 The group considered documents DSC 18/6/17 and annex 3 to DSC 18/INF.14 (Japan) and having agreed in principle, to include the proposed new individual schedule for chemical gypsum into the draft amendment 03-15 of IMSBC Code, the group agreed to recommend E&T 21 to finalize the draft individual schedule for this cargo. Consequently, the group further agreed to invite Japan to:

.1 verify the LC50 value in "Toxicological information – Acute inhalation toxicity" specified in paragraph 11 in the MSDS of this cargo; and

.2 review the BCSN to clearly categorize this cargo taking into account that

the scope of the proposed individual schedule was redefined as products or by-products of "smelter and refinery" and "polyaluminum chloride".

Manganese component ferroalloy slag 32 The group considered document DSC 18/6/18 and annex 4 to DSC 18/INF.14 (Japan) containing a draft individual schedule for manganese component ferroalloy slag. The group, taking into account that a Member Government considered the long-term inhalation toxicity was category 1, agreed to invite Japan to provide further information on health hazards, in particular on "long-term inhalation toxicity". Non-ferrous metal slag 33 The group considered documents DSC 18/6/19 and annex 5 to DSC 18/INF.14 (Japan) proposing a draft individual schedule for non-ferrous metal slag". The group highlighted the need receive further information on health hazards, taking the MHB criteria into consideration. Accordingly, the group agreed to invite Japan to resubmit the draft

DSC 18/WP.4

I:\DSC\18\WP\4.doc

individual schedules for copper slag and zinc slag, in order to replace the proposed generic individual schedule for non-ferrous metal slag. Clinker ash 34 The group considered document DSC 18/6/20 (Japan) containing a draft individual schedule for clinker ash. Following a technical discussion, the group was of the view that exemption provisions based on ship type should not be included in the individual schedule. The group agreed to review the provisions for "specially constructed or fitted cargo ships", i.e. paragraph 7.3.2 in the IMSBC Code, and further agreed to recommend the Sub-Committee to invite interested Member Governments (Japan in particular) and international organizations to submit proposals to E&T 21 or CCC 1 in this regard. It was also noted by the group, that the text "may cause long-term health effects" in the section for "Hazard" was inappropriate. Anhydrous sodium silicate 35 The group considered documents DSC 18/6/24 and DSC 16/INF.17 (Italy) and agreed, in principle, to include the proposed new individual schedule for ANHYDROUS SODIUM SILICATE into the draft amendment 03-15 to IMSBC Code. The group further agreed to recommend E&T 21 to prepare the draft individual schedule for this cargo. It was pointed out that additional precautions might be necessary with regard to potential irritation of the skin. It was further pointed out that adequate hazard information is required and the irritation or eye damage should be rechecked. Anhydrous calcium sulphate 36 The group considered documents DSC 18/6/25 and DSC 17/INF.18 (Italy) proposing the inclusion of an individual schedule for anhydrous calcium sulphate in the draft amendment 03-15 to the IMSBC Code. After its deliberations, the group agreed to invite Italy to provide further information on "inhalation toxicity", in addition to the information already contained in the MSDS and taking into consideration the MHB criteria, as well as liquefaction characteristics of the product. Furthermore, the group indicated that it may be necessary to include some prevention text for irritation to the respiratory system, eye and skin, in the section for "Precautions", thus, the adequate hazard information matching the MSDS should be also included. Aluminum fluoride 37 The group considered documents DSC 18/6/26 and DSC 18/INF.19 (Italy) containing a draft individual schedule for aluminium fluoride. In considering that the low-moisture content of the cargo does not correspond for Group A nor Group A & B classification, the group agreed to invite Italy to revise the cargo group for this cargo together with adequate information on skin and eye irritation and resubmit the draft individual schedule to E&T 21. Miscellaneous issues relating to amendment 03-15 Evaluation of the properties and sampling of solid bulk cargoes 38 The group considered document DSC 18/6/21 (IBTA and IIMA) and, after its discussion and deliberations, agreed with the following issues:

DSC 18/WP.4

I:\DSC\18\WP\4.doc

.1 the need to recognize the hazards and risks associated with stockpile sampling;

.2 the fact that responsible shippers and terminal operators cannot permit

access to material stockpiles by any personnel until such time as a full-risk assessment has been conducted and it is agreed by both parties that it is safe to proceed, provided they are allowed under national safety laws and regulations; and

.3 the need to recognize the online sampling methods(s) used by terminals

that comply with the best international standards and meet the requirements of the IMSBC Code.

39 However, the group agreed that no amendments to the IMSBC Code are necessary in this context. Inconsistencies for Seed Cake entries 40 The group considered DSC 18/6/23 (Italy) explaining some inconsistencies for seed cake entries in appendix 4 to the IMSBC Code. Having noted the issue, the group agreed, in principle, to review the entries for seed cake cargoes in the index for solid bulk cargoes, i.e. appendix 4 to the IMSBC Code. The group agreed to recommend E&T 21 to review these entries. Terms of reference for the editorial and technical group 41 As instructed, the group prepared the draft terms of reference for E&T 21 as follows:

"Taking into account the comments and decisions made at DSC 18, the group is instructed to:

.1 prepare draft amendment to the IMSBC Code for the inclusion of

appropriate provisions for explaining the numerical reference next to the MHB in the individual schedules and insert a numerical reference next to the MHB class in order to identify the hazard for new individual schedules in draft individual schedules for cargoes not listed in the Code in the amendments (03-15) to the Code;

.2 review the draft appendix including the Bulk Cargo Shipping Names in three languages, set out in the annex to document DSC 18/6/9;

.3 consider the progress report of the Correspondence Group on HME, if established;

.4 incorporate the draft amendment to appendix 2 to the Code for the inclusion of new test procedure for determining the TML of Iron Ore Fines into the draft amendment 03-15;

.5 incorporate the draft amendment to appendix 1 to the Code for the inclusion of new individual schedule for Iron Ore Fines into the draft amendment 03-15;

.6 incorporate the draft amendment to the individual schedule for Iron Ore into the draft amendment 03-15;

DSC 18/WP.4

I:\DSC\18\WP\4.doc

.7 prepare the draft individual schedules for WOOD PELLETS based on document DSC 18/6/5 (Canada) and consider consequential amendment to MSC.1/Circ.1395/Rev.1;

.8 prepare the draft individual schedules for GLASS CULLET, based on

document DSC 18/6/8 (Sweden); .9 prepare the draft individual schedules for BORIC ACID, based on

document DSC 18/6/22 (United States); .10 prepare the draft individual schedules for CHEMICAL GYPSUM, based on

document DSC 18/6/17 (Japan); .11 prepare the draft individual schedules for ANHYDROUS SODIUM

SILICATE, based on document DSC 18/6/24 (Italy); .12 consider the following documents, together with the additional information

requested by the group (if submitted), as appropriate:

.1 DSC 18/6/12 and DSC 18/INF.6 (Philippines); .2 DSC 18/6/15, DSC 18/6/16, DSC 18/6/18, DSC 18/6/20 and

DSC 18/INF.14 (Japan); and .3 DSC 18/6/25 and DSC 17/INF.18 (Italy);

.13 review the entries for seed cake cargoes in the index for solid bulk cargoes,

based on document DSC 18/6/23 (Italy); and .14 submit a report to CCC 1."

Action requested of the Sub-Committee 42 The Sub-Committee is invited, in particular, to:

.1 endorse the views and recommendation of the group regarding the need for a numerical reference to be inserted in the individual schedules in the section for "Characteristics" and next to the MHB class (paragraphs 4 and 5);

.2 agree to the recommendation of the group regarding the inclusion of a new

appendix in the IMSBC Code, containing the Bulk Cargo Shipping Names in English, French and Spanish languages (paragraph 6);

.3 note the deliberations of the group on the need to compile a new section for

environmentally hazardous substances within the IMSBC Code in relation to the revised MARPOL Annex V by developing a corresponding indicative list of solid bulk cargoes (paragraphs 7 to 10);

.4 endorse the recommendation of the group to establish a correspondence

group on HME substances within the IMSBC Code in relation to the revised MARPOL Annex V (paragraph 11);

DSC 18/WP.4

I:\DSC\18\WP\4.doc

.5 note the group's opinion on the need to develop validated training material to facilitate the safe transport and operation procedures involving solid bulk cargoes and further agree to its recommendation that a training IMO Model course on the safe transport of solid bulk cargoes be developed (paragraphs 12 and 13);

.6 note the deliberations of the group regarding the draft amendment to

appendix 2 to the IMSBC Code for the inclusion of new test procedure for determining the TML of Iron Ore Fines, and agree to the corresponding draft amendment for inclusion in the draft amendment 03-15 of the Code, to be prepared by E&T 21 (paragraph 14 and annex 1);

.7 endorse the action taken by the group for iron ore fines containing more

than 35 per cent of total goethite, to which the individual schedule for IRON ORE should be applied, and agree to apply the requirement for goethite content declaration to Iron Ore Fines containing more than 35 per cent of total goethite, when carried in accordance under the individual schedule for IRON ORE (paragraphs 15 and 16);

.8 note the group's deliberations on the potential health hazards that may be

associated with iron ore fines and endorse the draft individual schedule for IRON ORE FINES and draft amendment to the individual schedule for IRON ORE for inclusion in the draft amendment 03-15, to be prepared by E&T 21 (paragraphs 17 and 18 and annexes 2 and 3);

.9 agree to the draft DSC circular on Early implementation of the draft

amendments to the IMSBC Code relating to the draft schedule for iron ore fines (paragraph 19 and annex 4);

.10 endorse the decisions taken by the group regarding the proposal for

individual schedules to be included in the IMSBC Code and further agree to recommend E&T 21 to take action accordingly (paragraphs 20 to 37);

.11 endorse the views of the group with regard to the evaluation of the

properties and sampling of solid bulk cargoes and agree to the decision of the group that no amendments to the IMSBC Code are necessary in this context (paragraphs 38 and 39);

.12 agree with the group's recommendation to E&T 21 to review appendix 4 of

the IMSBC Code in order to amend some inconsistencies for seed cake entries in in the index for solid bulk cargoes (paragraph 40);

.13 agree to the draft terms of reference of the E&T Group at is twenty-first

session (paragraph 41); and .14 approve the report in general.

***

DSC 18/WP.4 Annex 1, page 1

I:\DSC\18\WP\4.doc

ANNEX 1

DRAFT AMENDMENT TO APPENDIX 2 TO THE IMSBC CODE

Appendix 2 Laboratory test procedures,

associated apparatus and standards 1 Test procedures for materials which may liquefy and associated apparatus

1 The following new section 1.4 is added:

"1.4 Modified Proctor/Fagerberg test procedure for Iron Ore Fines

1.4.1 Scope

.1 The test procedure specified in this section (this test) should only be used for determining transportable moisture limit (TML) of Iron Ore Fines. See individual schedule for IRON ORE FINES.

.2 Iron Ore Fines is iron ore containing both:

.1 10 per cent or more of fine particles less than 1 mm, and

.2 50 per cent or more of particles less than 10 mm.

.3 The TML of Iron Ore Fines is taken as equal to the critical moisture content at 80 per cent degree of saturation according to the modified Proctor/Fagerberg method test.

.4 The test procedure is applicable when the degree of saturation

corresponding to Optimum Moisture Content (OMC) is 90 per cent or higher.

1.4.2 Modified Proctor/Fagerberg test equipment

.1 The Proctor apparatus (see figure 1.4.1) consists of a cylindrical iron mould with a removable extension piece (the compaction cylinder) and a compaction tool guided by a pipe open at its lower end (the compaction hammer).

.2 Scales and weights (see 3.2) and suitable sample containers.

.3 A drying oven with a controlled temperature interval from 100C

to maximum 105C.

.4 A container for hand mixing. Care should be taken to ensure that the mixing process does not reduce the particle size by breakage or increase the particle size by agglomeration or consistency of the test material.

.5 A gas or water pycnometry equipment to determine the density of the solid material as per a recognized standard (e.g. ASTM D5550, AS1289)


I:\DSC\18\WP\4.doc

1.4.3 Temperature and humidity (see 1.1.3)

1.4.4 Procedure

.1 Establishment of a complete compaction curve

A representative sample according to a relevant standard (see section 4.7 of the IMSBC Code) of the test material is partially

dried at a temperature of approximately 60C or less to reduce the samples moisture to suitable starting moisture, if needed. The representative sample for this test should not be fully dried, except in case of moisture content measurement.

The total quantity of the test material should be at least three times as big as required for the complete test sequence. Compaction tests are executed for five to ten different moisture contents (five to ten separate tests). The samples are adjusted in order that partially dry to almost saturated samples are obtained. The required quantity per compaction test is about 2,000 cm3.

Figure 1.4.1

At each compaction test a suitable amount of water is added to the sample of the test material. The sample material is gently mixed before being allowed to rest and equilibrate. Approximately one fifth of the mixed sample is filled into the mould and levelled and then the increment is tamped uniformly over the surface of the increment. Tamping is executed by dropping a 150 g hammer 25 times through the guide pipe, 0.15 m each time. The performance is repeated for all five layers. When the last layer has been tamped the extension piece is removed and the sample is levelled off along the brim of the mould with care, ensuring to remove any large particles that may hinder levelling of the sample, replacing them with material contained in the extension piece and re-levelling.


I:\DSC\18\WP\4.doc

When the weight of the cylinder with the tamped sample has been determined, the cylinder is emptied, the sample is dried at 105ºC and the weight is determined. Reference is made to ISO 3087:2011 "Iron ores -- Determination of the moisture content of a lot". The test then is repeated for the other samples with different moisture contents.

Density of solid material should be measured using a gas or water pycnometry equipment according to internationally or nationally accepted standard, e.g. ASTM D5550 and AS 1289 (see subsection 1.4.2.5).

.2 Definitions and data for calculations (see figure 1.4.2)

- empty cylinder, mass in grams: A

- cylinder with tamped sample, mass in grams: B

- wet sample, mass in grams: C

C B A

- dry sample, mass in grams: D

- water, mass in grams (equivalent to volume in cm3): E

E C D

Volume of cylinder: 1000 cm3

air

water

solid

E

D

C

weightvolume

voids

1000 cm3

Figure 1.4.2

.3 Calculation of main characteristics

- density of solid material, g/cm3 (t/m3): d

- dry bulk density, g/cm3 (t/m3):

1000

D

- net water content, volume %: ve

100v

Ee d

D


I:\DSC\18\WP\4.doc

- void ratio: e (volume of voids divided by volume of solids)

1d

e

- degree of saturation, percentage by volume: S

veS

e

- gross water content, percentage by mass: 1W

1 100E

WC

- net water content, percentage by mass: W

100E

WD

.4 Presentation of the compaction tests

For each compaction test the calculated void ratio ( e ) value is

plotted as the ordinate in a diagram with net water content ( ve )

and degree of saturation ( S ) as the respective abscissa

parameters.

20 40 60 80 100

0.4

0.6

0.8

1.0

Void ratio

e

Net water content in volume %: ev

Net water content in weight %: W =ev

d

Gross water content in weight %: W1 =100ev

100d+ev

S = 40% 60% 80% 100%

Figure 1.4.3


I:\DSC\18\WP\4.doc

.5 Compaction curve

The test sequence results in a specific compaction curve (see figure 1.4.3). The critical moisture content is indicated by the intersection of the compaction curve and the line S = 80% degree of saturation. The transportable moisture limit (TML) is the critical moisture content. Optimum Moisture Content (OMC) is the moisture content corresponding to the maximum compaction (maximum dry density) under the specified compaction condition. To check the applicability of this test, the relationship between moisture content and dry density should be evaluated, during this test. Then the OMC and the corresponding degree of saturation should be determined. This test procedure was developed based on the finding that the degree of saturation corresponding to OMC of iron ore fines was 90 to 95 per cent, while such degree of saturation of mineral concentrates was 70 to 75 per cent. In the case that the degree of saturation corresponding to OMC is less than 90 per cent, the shipper should consult with an appropriate authority, for the reason that this test may not be applicable for the material and the TML determined by this test may be too high."

***


I:\DSC\18\WP\4.doc

ANNEX 2

DRAFT INDIVIDUAL SCHEDULE FOR IRON ORE FINES 1 The following individual schedule is added: "IRON ORE FINES The provisions of this schedule shall apply to iron ore cargoes containing both:

.1 10 per cent or more of fine particles less than 1 mm (D10 ≤ 1 mm); and .2 50 per cent or more of particles less than 10 mm (D50 ≤ 10 mm).

Notwithstanding the above provision, iron ore fines where the total goethite content is 35 per cent or more by mass may be carried in accordance with the individual schedule for "IRON ORE", provided the master receives from the shipper a declaration of the goethite content of the cargo which has been determined according to internationally or nationally accepted standard procedures. Description Iron ore fines vary in colour from dark grey, rusty red to yellow and contain hematite, goethite and magnetite with varying iron content. IRON CONCENTRATE is a different cargo (See individual schedule for "Mineral Concentrates") Characteristics

Angle of repose Bulk density (kg/m3) Stowage factor (m3/t)

Not applicable 1,500 to 3,500 0.29 to 0.67

Size Class Group

10% or more of fine particles less than 1 mm and 50% or more of

particles less than 10 mm Not applicable A

Hazard This cargo may liquefy if shipped at moisture content in excess of its transportable moisture limit (TML). See section 7 of this Code. This cargo may affect magnetic compasses. This cargo is non-combustible or has a low fire-risk. Stowage & segregation No special requirements Hold cleanliness No special requirements


I:\DSC\18\WP\4.doc

Weather precautions When a cargo is carried in a ship other than a specially constructed or fitted cargo ship complying with the requirements in subsection 7.3.2 of this Code, during loading and unloading operations, the following provisions shall be complied with:

.1 the moisture content of the cargo shall be kept less than its TML during loading operations and the voyage;

.2 unless expressly provided otherwise in this individual schedule, the cargo

shall not be handled during precipitation; .3 unless expressly provided otherwise in this individual schedule, during

handling of the cargo, all non-working hatches of the cargo spaces into which the cargo is loaded or to be loaded shall be closed;

.4 the cargo may be handled during precipitation under the conditions stated in

the procedures required in subsection 4.3.3 of this Code; and .5 the cargo in a cargo space may be discharged during precipitation provided

that the total amount of the cargo in the cargo space is to be discharged in the port.

Loading Trim in accordance with the relevant provisions required under sections 4 and 5 of the Code. As the density of the cargo is high, due consideration shall be given to ensure that tanktop is not overstressed during voyage and during loading by a pile of the cargo. Precautions Loading rates of this cargo are normally very high. Due consideration shall be given to the ballasting operation in developing the loading plan required by regulation VI/7.3 in SOLAS Convention. Bilge wells shall be clean, dry and protected as appropriate to prevent ingress of the cargo. Ventilation No special requirements Carriage Cargo hold bilges shall be sounded at regular intervals and pumped out, as necessary. The appearance of the surface of this cargo shall be checked regularly during voyage, as far as practicable. If free water above the cargo or fluid state of the cargo is observed during voyage, the master shall take appropriate actions to prevent cargo shifting and potential capsize of the ship, and give consideration to seeking emergency entry into a place of refuge. Discharge No special requirements Clean-up No special requirements

***


I:\DSC\18\WP\4.doc

ANNEX 3

PROPOSED AMENDMENT TO INDIVIDUAL SCHEDULE FOR IRON ORE (GROUP C) 1 The following text with the footnote is inserted under the Bulk Cargo Shipping Name:

"The provisions of this schedule shall apply to iron ore cargoes:

.1 containing either:

.1.1 less than 10 per cent of fine particles less than 1 mm (D10 > 1 mm); or

.1.2 less than 50 per cent of particles less than 10 mm (D50 >

10 mm); or .1.3 both; or

.2 iron ore fines where the total goethite content is 35 per cent or

more by mass, provided the master receives from the shipper a declaration of the goethite content of the cargo which has been determined according to internationally or nationally accepted standard procedures."

2 In the section for "Description", the text "Moisture content: 0% to 16%" is deleted. 3 In the section for "Characteristics" under "Bulk density (kg/m3)" the figure 3,448" is replaced by "3,500". 4 In the section for "Precautions", the words "paid on" are replaced by "given to"; the reference regulation number "VI/9.3" is replaced by "VI/7.3". And the text "Bilge wells shall be clean, dry and protected as appropriate to prevent ingress of the cargo" is added at the end of the section.

***


I:\DSC\18\WP\4.doc

ANNEX 4 DRAFT DSC CIRCULAR ON EARLY IMPLEMENTATION OF THE DRAFT AMENDMENT

TO THE IMSBC CODE

New individual schedule for IRON ORE FINES, modified individual schedule for IRON ORE and

New test procedure for determining Transportable Moisture Limit of Iron Ore Fines

1 The Maritime Safety Committee, at its ninety-first session (26 to 30 November 2012), having noted that the Sub-Committee on Dangerous Goods, Solid Cargoes and Containers (DSC), had decided not to finalize a draft schedule for iron ore fines at DSC 17 in order to await the outcome of related research, with a view to finalizing the draft schedule(s) and appropriate test methods at DSC 18; and had approved DSC.1/Circ.66/Rev.1 on Carriage of iron ore fines that may liquefy so that it would continue to be applied until the finalization of the schedule(s). 2 In this regard, the Maritime Safety Committee authorized DSC 18 to issue a DSC circular on early implementation of the draft schedule(s) for iron ore fines, after the Sub-Committee finalizes the draft schedule(s). 3 The Sub-Committee on Dangerous Goods, Solid Cargoes and Containers, at its eighteenth session (16 to 20 September 2013), prepared a draft individual schedule for IRON ORE FINES, draft amendment to the individual schedule for IRON ORE and a draft amendment to appendix 2 to the IMSBC Code for the inclusion of "Modified Proctor/Fagerberg test procedure for iron ore fines" as a test procedure only for iron ore fines, which are expected to be adopted as part of amendment 03-15 to the IMSBC Code by the MSC at its ninety-fifth session in 2015, agree to invite SOLAS Contracting Governments to implement the aforementioned draft schedules and test procedure, taking into account that the date of entry into force of the amendments will be 1 January 2017. 4 The individual schedule for IRON ORE FINES and revised individual schedule for IRON ORE are set out in annexes 1 and 2 to this circular. The new test procedure for determining TML of iron ore fines is set out in annex 3 to this circular. 5 Member Governments are invited to bring this circular to the attention of all concerned, taking into account the application date of the amendment to the IMSBC Code will be 1 January 2017. 6 This circular supersedes DSC.1/Circ.66/Rev.1.

* * *


I:\DSC\18\WP\4.doc

ANNEX 1

DRAFT INDIVIDUAL SCHEDULE FOR IRON ORE FINES

IRON ORE FINES

The provisions of this schedule shall apply to iron ore cargoes containing both:

.1 10 per cent or more of fine particles less than 1 mm (D10 ≤ 1 mm); and

.2 50 per cent or more of particles less than 10 mm (D50 ≤ 10 mm).

Notwithstanding the above provision, iron ore fines where the total goethite content is 35 per cent or more by mass may be carried in accordance with the individual schedule for "IRON ORE", provided the master receives from the shipper a declaration of the goethite content of the cargo which has been determined according to internationally or nationally accepted standard procedures.

Description Iron ore fines vary in colour from dark grey, rusty red to yellow and contain hematite, goethite and magnetite with varying iron content.

IRON CONCENTRATE is a different cargo (See individual schedule for "Mineral Concentrates")

Characteristics



Size Class Group

10% or more of fine particles less than 1 mm and 50% or more of

particles less than 10 mm Not applicable A

Hazard This cargo may liquefy if shipped at moisture content in excess of its transportable moisture limit (TML). See section 7 of this Code. This cargo may affect magnetic compasses. This cargo is non-combustible or has a low fire-risk.

Stowage & segregation No special requirements

Hold cleanliness No special requirements

Weather precautions When a cargo is carried in a ship other than a specially constructed or fitted cargo ship complying with the requirements in subsection 7.3.2 of this Code, during loading and unloading operations, the following provisions shall be complied with:

.1 the moisture content of the cargo shall be kept less than its TML during loading operations and the voyage;


I:\DSC\18\WP\4.doc

.2 unless expressly provided otherwise in this individual schedule, the cargo shall not be handled during precipitation;

.3 unless expressly provided otherwise in this individual schedule, during

handling of the cargo, all non-working hatches of the cargo spaces into which the cargo is loaded or to be loaded shall be closed;

.4 the cargo may be handled during precipitation under the conditions stated

in the procedures required in subsection 4.3.3 of this Code; and .5 the cargo in a cargo space may be discharged during precipitation provided

that the total amount of the cargo in the cargo space is to be discharged in the port.

Loading Trim in accordance with the relevant provisions required under sections 4 and 5 of the Code. As the density of the cargo is high, due consideration shall be given to ensure that tanktop is not overstressed during voyage and during loading by a pile of the cargo. Precautions Loading rates of this cargo are normally very high. Due consideration shall be given to the ballasting operation in developing the loading plan required by regulation VI/7.3 in SOLAS Convention. Bilge wells shall be clean, dry and protected as appropriate to prevent ingress of the cargo. Ventilation No special requirements Carriage Cargo hold bilges shall be sounded at regular intervals and pumped out, as necessary. The appearance of the surface of this cargo shall be checked regularly during voyage, as far as practicable. If free water above the cargo or fluid state of the cargo is observed during voyage, the master shall take appropriate actions to prevent cargo shifting and potential capsize of the ship, and give consideration to seeking emergency entry into a place of refuge. Discharge No special requirements Clean-up No special requirements

* * *


I:\DSC\18\WP\4.doc

ANNEX 2

DRAFT REVISED INDIVIDUAL SCHEDULE FOR IRON ORE

IRON ORE The provisions of this schedule shall apply to iron ore cargoes:

.1 containing either:

.1.1 less than 10 per cent of fine particles less than 1 mm (D10 > 1 mm); or

.1.2 less than 50 per cent of particles less than 10 mm (D50 > 10 mm);

or .1.3 both; or

.2 iron ore fines where the total goethite content is 35 per cent or more by mass, provided the master receives from the shipper a declaration of the goethite content of the cargo which has been determined according to internationally or nationally accepted standard procedures.

Description Iron ore varies in colour from dark grey to rusty red. It varies in iron content from haematite, (high grade ore) to ironstone of the lower commercial ranges. Mineral Concentrates are different cargoes (see IRON CONCENTRATE). Characteristics



Size Class Group

Up to 250 mm Not applicable C

Hazard No special hazards. This cargo is non-combustible or has a low fire-risk. Iron ore cargoes may affect magnetic compasses. Stowage & segregation No special requirements. Hold cleanliness No special requirements. Weather precautions No special requirement. Loading Trim in accordance with the relevant provisions required under sections 4 and 5 of the Code.


I:\DSC\18\WP\4.doc

As the density of the cargo is extremely high, the tanktop may be overstressed unless the cargo is evenly spread across the tanktop to equalize the weight distribution. Due consideration shall be paid to ensure that tanktop is not overstressed during voyage and during loading by a pile of the cargo. Precautions Loading rates of this cargo are normally very high. Due consideration shall be given to the ballasting operation to develop the loading plan required by regulation VI/7.3 in SOLAS Convention. Bilge wells shall be clean, dry and protected as appropriate to prevent ingress of the cargo. Ventilation No special requirements. Carriage No special requirements. Discharge No special requirements. Clean-up No special requirements.

* * *


I:\DSC\18\WP\4.doc

ANNEX 3

DRAFT NEW TEST PROCEDURE FOR DETERMINING TML OF IRON ORE FINES

Appendix 2

Laboratory test procedures, associated apparatus and standards

1 Test procedures for materials which may liquefy and associated apparatus "1.4 Modified Proctor/Fagerberg test procedure for Iron Ore Fines 1.4.1 Scope

.1 The test procedure specified in this section (this test) should only be used for determining transportable moisture limit (TML) of Iron Ore Fines. See individual schedule for Iron Ore Fines.

.2 Iron Ore Fines is iron ore containing both:

.1 10 per cent or more of fine particles less than 1mm, and

.2 50 per cent or more of particles less than 10mm.

.3 The TML of Iron Ore Fines is taken as equal to the critical moisture content at 80 per cent degree of saturation according to the modified Proctor/Fagerberg method test.

.4 The test procedure is applicable when the degree of saturation corresponding to Optimum Moisture Content (OMC) is 90 per cent or higher.

1.4.2 Modified Proctor/Fagerberg test equipment

.1 The Proctor apparatus (see figure 1.4.1) consists of a cylindrical iron mould with a removable extension piece (the compaction cylinder) and a compaction tool guided by a pipe open at its lower end (the compaction hammer).

.2 Scales and weights (see 3.2) and suitable sample containers.

.3 A drying oven with a controlled temperature interval from 100C

to maximum 105C. .4 A container for hand mixing. Care should be taken to ensure that the

mixing process does not reduce the particle size by breakage or increase the particle size by agglomeration or consistency of the test material.

.5 A gas or water pycnometry equipment to determine the density of the solid

material as per a recognized standard (e.g. ASTM D5550, AS1289)


I:\DSC\18\WP\4.doc

1.4.3 Temperature and humidity (see 1.1.3) 1.4.4 Procedure

.1 Establishment of a complete compaction curve

A representative sample according to a relevant standard (see section 4.7 of the IMSBC Code) of the test material is partially dried at a temperature of

approximately 60C or less to reduce the samples moisture to suitable starting moisture, if needed. The representative sample for this test should not be fully dried, except in case of moisture content measurement. The total quantity of the test material should be at least three times as big as required for the complete test sequence. Compaction tests are executed for five to ten different moisture contents (five to ten separate tests). The samples are adjusted in order that partially dry to almost saturated samples are obtained. The required quantity per compaction test is about 2,000 cm3.

Figure 1.4.1

At each compaction test a suitable amount of water is added to the sample of the test material. The sample material is gently mixed before being allowed to rest and equilibrate. Approximately one fifth of the mixed sample is filled into the mould and levelled and then the increment is tamped uniformly over the surface of the increment. Tamping is executed by dropping a 150 g hammer 25 times through the guide pipe, 0.15 m each time. The performance is repeated for all five layers. When the last layer has been tamped the extension piece is removed and the sample is levelled off along the brim of the mould with care, ensuring to remove any large particles that may hinder levelling of the sample, replacing them with material contained in the extension piece and re-levelling.


I:\DSC\18\WP\4.doc

When the weight of the cylinder with the tamped sample has been determined, the cylinder is emptied, the sample is dried at 105ºC and the weight is determined. Reference is made to ISO 3087:2011 "Iron ores -- Determination of the moisture content of a lot". The test then is repeated for the other samples with different moisture contents. Density of solid material should be measured using a gas or water pycnometry equipment according to internationally or nationally accepted standard, e.g. ASTM D5550 and AS 1289 (see subsection 1.4.2.5).

.2 Definitions and data for calculations (see figure 1.4.2)

- empty cylinder, mass in grams: A - cylinder with tamped sample, mass in grams: B - wet sample, mass in grams: C

C B A - dry sample, mass in grams: D - water, mass in grams (equivalent to volume in cm3): E

E C D Volume of cylinder: 1000 cm3

air

water

solid

E

D

C

weightvolume

voids

1000 cm3

Figure 1.4.2

.3 Calculation of main characteristics

- density of solid material, g/cm3 (t/m3): d

- dry bulk density, g/cm3 (t/m3):

1000

D

- net water content, volume %: ve

100v

Ee d

D


I:\DSC\18\WP\4.doc

- void ratio: e (volume of voids divided by volume of solids)

1d

e

- degree of saturation, percentage by volume: S

veS

e

- gross water content, percentage by mass: 1W

1 100E

WC

- net water content, percentage by mass: W

100E

WD

.4 Presentation of the compaction tests

For each compaction test the calculated void ratio ( e ) value is plotted as

the ordinate in a diagram with net water content ( ve ) and degree of

saturation ( S ) as the respective abscissa parameters.

20 40 60 80 100

0.4

0.6

0.8

1.0

Void ratio

e

Net water content in volume %: ev

Net water content in weight %: W =ev

d

Gross water content in weight %: W1 =100ev

100d+ev

S = 40% 60% 80% 100%

Figure 1.4.3


I:\DSC\18\WP\4.doc

.5 Compaction curve

The test sequence results in a specific compaction curve (see figure 1.4.3). The critical moisture content is indicated by the intersection of the compaction curve and the line S = 80% degree of saturation. The transportable moisture limit (TML) is the critical moisture content. Optimum Moisture Content (OMC) is the moisture content corresponding to the maximum compaction (maximum dry density) under the specified compaction condition. To check the applicability of this test, the relationship between moisture content and dry density should be evaluated, during this test. Then the OMC and the corresponding degree of saturation should be determined. This test procedure was developed based on the finding that the degree of saturation corresponding to OMC of iron ore fines was 90 to 95 per cent, while such degree of saturation of mineral concentrates was 70 to 75 per cent. In the case that the degree of saturation corresponding to OMC is less than 90 per cent, the shipper should consult with an appropriate authority, for the reason that this test may not be applicable for the material and the TML determined by this test may be too high."

___________

development of amendments to the imsbc … 18-wp.4 - development of... · the sub-committee that a...

Documents