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BUREAU OF INDIAN STANDARDS(Central Marks Department - III)

Ref: CMD-III/ 16: 12818 17 March 2011

Indian Standard IS 12818: 1992 has been revised as IS 12818:2010incorporating all amendments. In this revision, following majormodifications have been made:

. Newclass of pipes 'Deep Well Pipes' has been included,

. Two new sizes 35 mm and 115 mm have been included,

. Requirements for resistance to. external blows at OOC, threaddimensions, thread profile, sealing ring and opening area have beenmodified,

. Vicat softening temperature value has been. aligned with IS4985:2000 'Unplasticized PVC pipes for potable water supplies -Specification', and

. Tolerances on effective and segmental lengths of pipes have beenmodified as per current manufacturing practices.

Accordingly, draft STI DOC: STI/12818/3, June 2011 has been preparedand sent to all RO/BOs, CED & MSD for comments if any. Comments maybe sent to CMD-III before 10 April 2011. If comments are not received byus before 10 April 2011, it will be treated as 'No comments' and the STIwill be finalized accordingly. It is proposed to implement the revisedstandard and STI w.e.f. 01 June 2011.

1~lo2J1"(R. BHANUPRAKASH)

Scientist E / Director, CMD-III~

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Scient~ CMD-III

Scientist F & H, ITSD - for placing on Intranet

Scientist F & H, CED - for comments

Scientist F & H, MSD- for comments

Circulated to all RO's/BO's - for comments if any

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DOC: 5TI/12818/3June 2011

SCHEME OF TESTING AND INSPECTIONFOR CERTIFICATION OF

UN PLASTICIZED PVC SCREEN AND CASING PIPES FOR BORE / TUBE WELLACCORDING TO

IS 12818:2010

(Second revision)

1. LABORATORY- A laboratory shall be maintained which shall be suitablyequipped and staffed, where different tests given in the specification shallbe carried out in accordance with the methods given in the specification.

1.1 All testing apparatus' shall be periodically checked and calibrated andrecords of such checks/calibration shall be maintained.

2. TESTRECORDS- All records of tests and inspection shall be kept in suitableforms approved by the Bureau.

2.1 Copies of any records and other connected papers that may be requiredby the Bureau shall be made available at any time on request.

3. QUALITYCONTROL- It is recommended that as far as possible, StatisticalQuality Control (SQC) methods may be used for controlling the quality ofthe product during production as envisaged in this scheme [See IS 397(Part I) to IS397 (part 4)].

3.1 In addition, efforts should be made to gradually introduce a QualityManagement System as per IS/ISO 9001.

4. STANDARD MARK - The Standard mark, as given in Column (1) of theFirst Schedule of the licence, shall be applied indelibly by stencilling Iscreen printing / transfix labels / engraving provided always that the pipeconforms to all the requirements of the specification. In case the mark isapplied by engraving, it shall be applied in such a manner that it does notimpair the strength and dimensional requirements of the pipe in any way.

4.1 In case of any non-conformity, standard mark shall be completely removedusing suitable method (s),from the pipes.

4.2 MARKINGS- In addition, each pipe shall be clearly and indelibly markedin:

a)b)c)

Red colour for RMS,PMSand CSpipes;Yellow colour for CM pipe, andGreen colour for CD pipes and RDS'pipes

with the following information:a) Indication of the source of manufacture;

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9.

9.1

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DOC:5T1/12818/3June 2011

REPLACEMENT- Whenever a complaintis receivedsoon after the goodswith Standard Marks have been purchased and used, and if there isadequate evidence that the goods have not been misused, defectivegoods or their components are replaced or repaired free of cost by thelicensee in case the complaint is proved to be genuine and the warrantyperiod (where applicable) has not expired. The final authority to judge the.conformity of the product to the Indian Standard shall be with the Bureau.The firm shall have complaint investigation system as per IS/ ISO 10002.

STOP MARKING- The marking of the product shall be stopped underintimation to the Bureau if, at any time, there is some difficulty inmaintaining the conformity of their product to the. specification, or thetesting equipment goes out of order. The marking may be resumed assoon as the defects are removed under intimation to the Bureau.

The marking of the product shall be stopped immediately if directed to doso by Bureau for any reason. The marking may then be resumed onlyafter permission by the Bureau. The information regarding resumption ofmarkings shall also be sent to the Bureau.

10. PRODUCTIONDATA - The licensee shall send to BISas per the enclosedProforma-I to be authenticated by a Chartered Accountant a statement ofquantity produced, marked and exported by him and the trade valuethereof at the end of each operative year of the license.

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DRAFTDOC:5TI/12818/3

June 2011

IS 12818:2010

UNPLASTlc/ZED PVC SCREEN AND CASING PIPES FOR BORE/ TUBE WELL

TABLE 1 LEVELS OF CONTROL

(para 5.0 of the Scheme of Testing and Inspection)

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TESTDETAILS LEVELSOF CONTROLClause Requirements Reference No. of samples Frequency Remarks

Reference (pieces)4 Composition IS 12818

4. I. I & 4.1.2 rvc Resin IS 12818, One Each consignment No testing is required ifIS 10151, accompanied by TestIS 10148 Certificate.& IS 4669

5 Colour IS 12818 Each pipe

7 & 9.2 Dimensions IS 12818, 10 Each Control unit Samples shall be drawnTable I to 1O, on regular intervals (See

Fig I to 4 also clause 5.2 of thisscheme)

8 Threading of Screen IS 12818, IS554, -do- -do- -do-

and Casing pipes Table II to 13,Fig 3A, 4A, 38

8.4 Sealing rings IS 12818 -do- Each size in a Each consignment shallconsignment be accompanied by a

test certificate.Additionally the firmshall make randomsample checks beforeaccepting theconsiqnment. In case of

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failure the consignmentshall be rejected..

9.1 Visual appearance IS 12818 Each pipe Non conforming pipesshall be rejected.

9.3 Density IS 12818, 3 Each Control unit Samples shall be drawnIS 12235 (Part 14) on regular intervals. In

case of failure control

unit shall be rejected.

9.4 Resistance to IS 12818, Sufficient to -do- See note under clauseExternal Slows at Table 14 complete 14 or 9.4 of the standard

0 deg C IS 12235 (Part 9) 42 strikes asapplicable

9.5 Tensile Strength IS 12818, 2 -do- See note under clause

IS 12235 (Part 13) 9.5 of the standard

9.6 Vicat Softening IS 12818, One sample Once in 3 months See note under clausetemperature IS 12235 (Part 2) 9.6 of the standard

. 9.7 Effect on Water IS 12818, One sample Once in 3 months10.3 of IS4985,

IS 12235 (Part 4)

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3.0

3.1

3.2

4.0

4.1

5.0

5.1

6.0

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DOC:5T1/12818/3June 2011

PROFORMA - 1

PROFORMA FOR OBTAINING PRODUCTION DETAILS

Period covered

Name of Licensee

CM/L No.

Name of Articles (s) IS No.

Grade/Type/SizejVa riety IClass/Rating

1.1 Brand/Trade/Name(s) of BIS Certification Marked Products

Total production of the articles(s)2.0

licensed for certification marking

2.1 Total production of the article(s)

conforming to Indian Standard

Production covered with BIS

Certification Mark and its Value

a) Quantity

b) Value (Rs.)

Brand Name used on production covered under BIS Certification Mark

Calculation of marking fee on unit-rate basis; Marking Fee per unit

a) Unit

b) Quantity covered with BIS Certification Mark

c) Marking fee rounded off in whole rupees as obtained by applying unit rates given in(a) on quantity given in (b)

Note: In case a clause is not applicable, suitable remarks may be given against it.

Quantity not covered with BIS Certification Mark. If any, and the reasons for

such non-coverage

Brand Name under with non certified goods were sold

Quantity Exported with BIS Standard Mark and its value

Brand Name under whichBIS Certified goods are exported

Authentication by Chartered Accountant

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