MARICHEM WATER TREATMENT PRODUCTS &

TEST KITS

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TABLE OF CONTENTS

A. BOILER WATER TREATMENT PRODUCTS

PRODUCT NAME PAGE NUMBER 1. BWT NEW FORMULA 3

2. MARICHEM CCI 3

B. BOILER WATER TREATMENT TEST KITS

TEST KIT PAGE NUMBER 1. WT ALKA TEST KIT 3

2. WT CHLORI TEST KIT 4 3. WT PHOSP TEST KIT 5 4. WT SULFI TEST KIT 6

5. pH MEASURING TAPE 7 6. CONDUCTIVITY TEST 7

7. TEST KITS USED with BWT NEW FORMULA & MARICHEM CCI

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C. DIESEL COOLING WATER TREATMENT PRODUCT

PRODUCT NAME PAGE NUMBER

1. D.C.W.T. NON CHROMATE 9

D. DIESEL COOLING WATER TREATMENT TEST KITS

TEST KIT PAGE NUMBER

1. NITRITE TEST KIT 10 2. CHLORICOOL WT TEST KIT 11

3. pH MEASURING TAPE 11

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A. BOILER WATER TREATMENT PRODUCTS

1. BWT NEW FORMULA

APPLICATION AND USE Dosing Procedure

Initially, use 1 litre of B.W.T. NEW FORMULA per ton of water. Thereafter, a volume of 50-60 ml per ton of water should be used daily. For optimum results, consult the MARICHEM Ships BWT Log Book for boiler water treatment on a daily basis. Note that the boiler water sample analyses must be conducted daily by using the MARICHEM WT ALKA, WT PHOSP and WT SULFI TEST KITS. Daily test results should be taken into account prior to regulating treatment by either additional chemical dosage or surface blowdown.

Feeding Procedure Once the dosing quantity is determined, B.W.T. NEW FORMULA must be introduced to the boilers water, continuously, by a metering pump or by a more conventional method such as metallic container, plastic pail, etc.

2. MARICHEM C.C.I.

APPLICATION AND USE Dosing Procedure

MARICHEM C.C.I. must be applied daily at an indicated volume of 70 ml - 80 ml per 1 ton of boiler water per day. Note that per day dosing is a must in order to keep the pH level under control.

Feeding Procedure MARICHEM C.C.I. must be fed, by means of a metering pump, in the boiler at any of the following points:

- Condensation pump discharge - Deaerator storage tank - Hot well tank - Condensation return tank

B. BOILER WATER TREATMENT TEST KITS

1. WT ALKA TEST KIT

A. TEST PROCEDURE (DETERMINATION OF P - ALKALINITY VALUE) 1. Rinse the test tube several times with the test sample and fill it up to the mark of 5 ml. 2. Add 1 drop of the indicator P and mix by shaking. If the test sample remains colorless the P-Alkalinity value is 0. Then you have to continue from the part B for the determination of M-Alkalinitys value. 3. If the test sample color turns red, fill the titration syringe with the solution Carbonate Hardness TL C 20 till the indication 0. 4. Add the titration solution Carbonate Hardness TL C 20 dropwise and when red color has completely vanished, you must immediately start to gently shake the test tube. 5. Read off the P-Alkalinity value in od or in mmol /lt Cl and convert it in parts per million (ppm) CaCO3, for that purposes you may be advised by the part C.

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. DETERMINATION OF M - ALKALINITY VALUE 1. Keep the water sample of the P-Alkalinity test for the determination of the M-Alkalinitys value. 2. Add 1 drop of indicator and mix by shaking until the water sample turns blue. If sample turns orange the M-Alkalinity value is identical with the P-Alkalinity value. 3. Titrate the water sample as described above with the solution Carbonate Hardness TL C 20 that has remained in the syringe from the P-Alkalinity determination till the solution turns orange. In case the syringe filling is not sufficient to reach color change fill up the syringe once more with the solution Carbonate Hardness TL C 20 and continue titration till the color change as described above. 4. Read off the M-Alkalinitys value in od or mmol /lt HCl and convert it to parts per million (ppm) as Calcium Carbonate CaCO3. The quantity of titration solution that used in all the procedure corresponds with the M-Alkalinity value. C. EVALUATION OF THE TEST RESULT For the conversion of the P & -Alkalinity value from mmol/lt HCl or od to parts per million (ppm) as CaCO3, you may consider the following:

1 d = 17,8 mg/lt CaCO3 or

1 mmol/lt HCl = 49,8 mg / lt CaCO3 = 50 ppm CaCO3 TABLE : P-Alkalinity, ppm CaCO3 or mmol/lt HCl in the Boiler Water Treatment

Quantity of Solution TL C 20, mmol/lt HCl

0-0,6

0,8-1,4

1,6-1,8

2,0-3,0

Over 3,0

ppm CaCO3

0 - 30

40 70

80 - 90

100 - 150

Over 150

After initial dosage has been introduced into the system, you have to perform the tests twice every 3 6 hours and on a daily basis, until stabilization of the system. There-after tests may be conducted in two to three days intervals or so.

D. ADDITIONAL INFORMATION The M-Alkalinity value should be lower than twice the P-Alkalinity value. If not, then add 1 liter of Alkalinity Control and repeat the test again after 2 hours time.

2. WT CHLORI TEST KIT

A. TEST PROCEDURE (DETERMINATION OF CHLORIDE IONS Cl-) 1. Rinse the test tube several times with the sample you wish to determine the Chloride ions concentration Cl- and fill the test tube with the sample, up to the ring mark of 5ml. 2. Add 1 drop of the solution, Indicator CL 500 and dissolve while shaking. The test sample color must turn blue or violet. 3. Add slowly drop wise the Solution Nitric Acid 4 % until the color turns yellow while continuously shaking. Normally 2-3 drops are sufficient for the change in color. 4. Use the titration syringe and fill it with the solution Chloride TL CL 500 till the value of 0 mg/lt. Add the titration Solution dropwise while lightly swirling the test tube until the color turns from yellow to violet. 5. Read off the sample Chloride content in mg/lt Cl- (lower rim of the black plunger) from the titration syringe in parts per million. That value corresponds to the chloride concentration into the water sample.

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. EVALUATION OF THE TEST RESULTS With that procedure we can determine the concentration of Chloride ions in ppm without any conversion in the unit. For the Boiler Water samples (Boiler Water Treatment) which contain more than 300ppm of Chloride Cl- concentration you have to perform blowdown and replenish with distilled or fresh water. It is worth being noted, that it does not exist nor has it been suggested, any other way of reducing the Chloride ions concentration, except by blowdown and replenishment of the system with distilled or fresh water. Considering the procedure of water replenishment for Boiler water system you may be advised by the following table. TABLE: Chloride Concentration Cl- in Boiler System

ppm Cl- ions

(Boiler System) 5 10 20 40 75 150 300 Over 300

Procedure Blowdown not required

Blowdown and systems

replenishment required

3. WT PHOSP TEST KIT

A. TEST PROCEDURE (DETERMINATION OF PHOSPHATE IONS PO4-3)

1. Rinse the test tube several times with the sample you wish to determine the Phosphate ions concentration PO4-3 and fill it with the sample up to the ring mark of 5ml. 2. Add 5 drops of the reagent solution Phosphate 1 (Nitric Acid 19%) and shake it carefully. 3. Take the one of the two small test tubes and fill it carefully with 6 drops of the reagent solution Phosphate - 2 and keep the solution. You may put it in the recess of the test kit plastic package. 4. Remove from the metallic package as many sticks as required for the measurement and reseal the container after use. Do not touch the test paper zone. 5. Place the test stick into the prepared sample from the step 2 and let it in the solution for about 15 seconds while shaking carefully. 6. Then place the test stick into the small test tube which filled with the Solution Phosphate - 2 from the step 3, for about 15 seconds. 7. Remove the stick from the small tube and after 60 seconds compare the color of the stick with the color scale on the metallic package. If the Phosphate ions are present the colour changes to blue green. B. EVALUATION OF THE TEST RESULTS With this procedure we can determine directly the Phosphate ion concentration in the Boiler System. For samples less than 20 ppm of Phosphate the Boiler System has to be supplied with the relevant BWT New Formula dosage according to the following table. For samples greater than 40 ppm of Phosphate perform blowdown, replenish with fresh water and check again the Phosphate concentration. The dosage of the BWT New Formula which has to be applied anytime you perform the test in the Boiler System is described by the table.

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Initial dosage of BWT New Formula: 1 lt /tn of water TABLE: Concentration of Phosphate ions PO4

-3 (Boiler System) ppm PO4

-3 0-10 10-20 20-40 40+ BWT New Formula

0,6 lt /tn of water

0,3 lt /tn of water

Satisfactory Blowdown

4. WT SULFI TEST KIT

A. TEST PROCEDURE (DETERMINATION OF SULFITE IONS SO3

-2) 1. Rinse the test tube several times with the sample you wish to determine the Sulfite ions concentration SO3-2 and fill it with the sample till the ring mark of 5ml. 2. Use the dosage syringe and fill it with 1ml of the reagent solution Sulfit 1 and add the content of the syringe to the sample of water and mix. 3. Add 2 drops of the reagent Sulfit2 and shake lightly the sample. The solution turns yellow. In case the solution remains colorless then the Sulfite ions SO3-2 concentration is more than 100 mg/lt and continue according to point 6 for the determination of the Sulfite concentration. 4. Add 1 drop of Sulfit3, then the solution turns grayish to yellowish blue. 5. Use the titration syringe and fill it with the solution Sulfit TL SU 100 till the value of 100 mg/lt. Add the titration Solution dropwise while lightly swirling the test tube at the same time. Continue slowly to add the titration solution until the test solution is completely colorless. Read off the sample Sulfite content in mg/lt SO3-2 from the titration syringe (lower rim of the black plunger). 6. Should the test solution not change the color to yellow after the addition of two drops of Sulfit - 2 then the Sulfite concentration is higher than 100 mg/lt SO3-2. In this case repeat the test and add 2 ml of the reagent Sulfite -1 instead of just 1ml. Then the range of titration syringe changes from 0-100 mg/lt to 100-200 mg/lt. In the case of even higher Sulfite concentration add correspondingly larger amounts of Sulfit -1 from the beginning until the addition of Sulfit 2 change the color to yellow. However such a kind of result is much greater than the suggested Sulfite concentration levels and rarely be occurred in the Boiler Systems. . EVALUATION OF THE TEST RESULTS With above procedure we can determine any Sulfite concentration in the Boiler System. If the Sulfite levels are observed to be higher or lower than what is advised, then you have to consult the following evaluation table in order to decrease or to increase the daily dosage by 25% respectively.

When for any reason blowdown is performed in the Boiler system then the initial Oxycontrol dosage of 0,3 lt per tone of water has to be introduced into the system until stabilization of the Sulfite concentration to the satisfactory levels. That could be easily achieved by performing the Sulfite Test on a daily basis and at anytime applying the appropriate Oxycontrol dosage. Regarding the Oxycontrol dosage you have to apply at anytime please be advised by the following Table. TABLE: Sulfite Concentration Ions SO3-2 (Boiler System)

ppm SO3-2

0 450 psi 0-20 20-30 30 +

Dosage Please refer to page

8 of this booklet Satisfactory

Please refer to page 8 of this booklet

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5. pH MEASURING TAPE

DESCRIPTION pH MEASURING TAPE measures the negative logarithm of the effective hydrogen-ion concentration or hydrogen-ion activity in gram equivalents per liter of aqueous solutions used in expressing both acidity and alkalinity on a scale whose values run from 0-14 with 7 representing neutrality, numbers less than 7 increasing acidity, and numbers greater than 7 increasing alkalinity. pH MEASURING TAPE is also used for measuring the pH value in condensation return lines. The pH value can be kept within the satisfactory range with the use of our product MARICHEM C.C.I. TESTING PROCEDURE

- Tear off a strip of paper measuring tape and insert for a few seconds into the solution that is to be tested. In cases with highly viscous or stained liquids and suspensions, the substance should be dripped onto the paper tape.

- The wet paper tape should now be compared with the color scale. - Note that possible discoloration of the dry new papers may be caused by their high sensitivity

against pH action. This does not impair the efficacy of the measuring paper tapes for pH determinations.

- With very weak buffered or non-buffered solutions, the so-called indicator error occurs. This may be compensated up to a certain point in the following manner: Place the paper tape against the inner wall of the test tube, fill the test tube with the liquid solution, enough so, that the liquid reaches to the top edge of the paper strip. Leave the test paper in the test tube and let it stand submerged for approximately 30 to 60 seconds. At the end, compare the color of the test paper with the color scale through the test tube glass.

TEST RESULTS EVALUATION CHART

pH value

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14

Acidic < <

< <

<

<

< < Neutral > > > > > >

> >

Absolute Alkaline

6. CONDUCTIVITY TEST

Electrical resistivity (also known as resistivity, specific electrical resistance, or volume resistivity) is a measure of how strongly a material opposes the flow of electric current. A low resistivity indicates a material that readily allows the movement of electric charge. Electrical conductivity or specific conductance is the reciprocal quantity, and measures a material's ability to conduct an electric current. In our case the conductivity values received will be due to Sulfite ions that are protecting the boilers surface from corrosion (i.e. acting as corrosion inhibitor), and due to Phosphate ions that are acting as scale inhibitors. The acceptable conductivity limits when performing the conductivity test are falling within 500 - 1500 mS.cm-1.

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7. SPECIAL INSTRUCTIONS ON MEASURING DIFFERENT TEST PARAMETERS WHEN USING BWT NEW FORMULA and MARICHEM C.C.I.

i. BWT NEW FORMULA DOSING PROCEDURE Initially, use 1 litre of B.W.T. NEW FORMULA per ton of boiler water. Thereafter, a volume of 50-60 ml per ton of boiler water should be used daily. For optimum results, consult the MARICHEM Ships BWT Log Book for boiler water treatment on a daily basis. Note that the boiler water sample analyses must be conducted daily by using the MARICHEM WT ALKA TEST KIT, WT PHOSP TEST KIT, WT CHLORI TEST KIT and WT SULFI TEST KIT. TESTING PROCEDURE With regards to testing procedure using the above mentioned test kits please refer to pages 5-9 of this booklet. In the exceptional case when the test results received are not within the satisfactory range the engineer in charge has to proceed as follows for each different test:

1. ALKALINITY TEST When the test result does not fall within the satisfactory range please use the required quantity of ALKALINITY CONTROL as described in TABLE - I of page 3 of this booklet.

2. PHOSPHATE TEST When the result for Phosphate ions concentration does not fall within the satisfactory range please use the required quantity of BWT NEW FORMULA as described in the table at page 5 of this booklet. 3. SULFITE TEST When the result for Sulfite ions concentration does not fall within the satisfactory range as described in table at page 6 of this booklet then the following actions must be taken for each different case:

a) When the Sulfite ions concentration falls above the satisfactory range, then the engineer in charge will have to slightly reduce the quantity of BWT NEW FORMULA used, until the satisfactory range reached again.

b) When the Sulfite ions concentration falls below the satisfactory range, then the engineer in charge will have to slightly increase the quantity of BWT NEW FORMULA used, until the satisfactory range reached again.

ii. MARICHEM C.C.I.

DOSING PROCEDURE MARICHEM C.C.I. must be applied daily at an indicated volume of 70 ml - 80 ml per 1 ton of boiler water per day. pH value of the condensation return lines must fall in the range of 8.0-9.0. Note that per day dosing is a must in order to keep the pH level under control. pH MEASURING TAPE is used for measuring the pH value in condensation return lines. TESTING PROCEDURE

- Tear off a strip of paper measuring tape and insert for a few seconds into the solution that is to be tested. In cases with highly viscous or stained liquids and suspensions, the substance should be dripped onto the paper tape.

- The wet paper tape should now be compared with the color scale. - Note that possible discoloration of the dry new papers may be caused by their high sensitivity

against pH action. This does not impair the efficacy of the measuring paper tapes for pH determinations.

- With very weak buffered or non-buffered solutions, the so-called indicator error occurs. This may be compensated up to a certain point in the following manner: Place the paper tape against the inner wall of the test tube, fill the test tube with the liquid solution, enough so, that the liquid

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reaches to the top edge of the paper strip. Leave the test paper in the test tube and let it stand submerged for approximately 30 to 60 seconds. At the end, compare the color of the test paper with the color scale through the test tube glass.

For test results evaluation please refer to Table at page 7.

C. DIESEL COOLING WATER TREATMENT PRODUCTS

1. D.C.W.T. NON CHROMATE

APPLICATION AND USE

Dosing Procedure Initially, a volume proportion of 7 litres of D.C.W.T. NON CHROMATE per ton of distilled or fresh water must be used. However, appropriate dosing can and must be determined, after the testing of water samples, using the MARICHEM NITRITE TEST KIT. For optimum results, a nitrite concentration of 1200 to 3600 ppm in the cooling system is recommended. The following dosage rates (as appearing in Table 1) should be applied anytime the Nitrite concentration is not within the satisfactory levels. TABLE 1: Nitrite ions (NO2

-) concentration in ppm & requested D.C.W.T. Non Chromate dosage Quantity of Nitrite (NO2

-) ppm as appearing in the Nitrite test kit, in a dilution of the cooling water

1-5

5-10

10-15

15-20

20-60

Over 60

Quantity of Nitrite (NO2-)

ppm in the cooling water 0-300 300-600 600-900 900-1200 1200-3600 Over 3600

D.C.W.T. NON CHROMATE dosage per ton of water

6 litres 4 litres 2 litres 1 litre Satisfactory Partial Drain

required

Feeding Procedure After the volume of D.C.W.T. NON CHROMATE to be dosed is determined and while the cooling system is in operation; feed the solution into the expansion tank or in any cross flow of the cooling system to ensure circulation. Moreover, proper distribution of the solution must be accomplished and a protective film is created. Only then is the treatment complete. After the application and while the cooling water system is in operation, let the solution circulate for approximately 2 hours. Then, test the Nitrite concentration in the water using the MARICHEM NITRITE TEST KIT. Repeat the testing procedure and make up with D.C.W.T. NON CHROMATE solution in order to stabilize the Nitrite concentration in the water due to losses/leakage of the system. For optimum results a nitrite ions concentration of 1200 ppm - 3600 ppm in the cooling system is recommended. The engineer has to make sure that a proper distribution of the solution is accomplished and that a protective film is created. For a better level of corrosion protection in the system, the use of CHLORICOOL WT TEST KIT is suggested, for measuring the chloride ions concentration. The chloride ions concentration must be maintained below the level of 60 ppm. The concentration of chloride ions could be controlled by partial drain and make up with fresh water. Moreover, the pH value must be checked within certain intervals. The satisfactory pH value level is 8.5 10. The desired corrosion and scale inhibition can be achieved within that range.

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D. DIESEL COOLING WATER TREATMENT TEST KITS

1. NITRITE TEST KIT

TESTING PROCEDURE

1. Extract water sample from the system in question. 2. With the syringe, draw 1 ml of the sample and empty into the graduated beaker. 3. Fill up to 60 ml of the cylinders capacity with fresh water. 4. Remove a test strip and seal back the container immediately. 5. Immerse the test strip in the sample solution for one second such that the reaction zone is

properly dampened. 6. Remove the strip out from the solution, shake off any excess liquid observed and leave it to dry

for 15 seconds. 7. Compare the dry strips to the color scale and read off the nitrite concentration in ppm. 8. Evaluate the founded results against the Test Results Evaluation Table and determine the quantity

of D.C.W.T.-NON CHROMATE to be used. For test results evaluation please refer to Table at page 9.

NOTES: For samples less than 20 ppm nitrite concentration, supply the system with the prescribed dosage

as in the chart above. For samples greater than 80 ppm nitrite concentration, drain some quantity of the old water out and make up for that amount with fresh water in order to bring the systems Nitrite concentration down to satisfactory levels.

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2. CHLORICOOL WT TEST KIT

A. TESTING PROCEDURE (DETERMINATION OF CHLORIDE IONS (Cl-) CONCENTRATION) For the instructions for use also refer to the pictogram on the back of the color chart. 1. Fill both glasses with a quantity of 5 ml of the sample you wish to determine the Chloride concentration using the syringe and place measuring glass on position A in the comparator. 2. You will only add the reagents to measuring glass B. Add 10 drops of Cl 1 in the glass B and seal the glass and mix. 3. Add 10 drops of Cl 2 in the glass B and seal the glass and mix. 4. Open the glass after 1 min and place it in the position B in the comparator. 5. Slide the comparator on the color chart until the colors match in the inspection hole on top. Check the measurement reading in the recess on the comparator reed. Mid values can be estimated. A higher than 60 mg/lt measurement is also apparent. 6. After use, rinse out both measuring glasses thoroughly and seal them. . EVALUATION OF THE TEST RESULTS With that procedure we can determine the concentration of Chloride ions in ppm without any conversion in the unit. For the Cooling Water samples (Cooling Water Treatment) which contain more than 60ppm of Chloride Cl- concentration you have to perform partial draining and replenish with distilled water. It is worth being noted that it does not exist nor has it been suggested any other way of reducing the Chloride ions concentration except by blowdown and systems replenishment by distilled or fresh water. Considering the procedure of water replenishment for cooling water system you may be advised by the following table.

TABLE: Chloride Ions Concentration (Cl-) in Cooling Systems. ppm Cl- ions (Cooling System)

5

10

30

60

Over 60

Procedure Partial Draining not required Partial Draining Required

3. pH MEASURING TAPE

TESTING PROCEDURE

- Tear off a strip of paper measuring tape and insert for a few seconds into the solution that is to be tested. In cases with highly viscous or stained liquids and suspensions, the substance should be dripped onto the paper tape.

- The wet paper tape should now be compared with the color scale. - Note that possible discoloration of the dry new papers may be caused by their high sensitivity

against pH action. This does not impair the efficacy of the measuring paper tapes for pH determinations.

- With very weak buffered or non-buffered solutions, the so-called indicator error occurs. This may be compensated up to a certain point in the following manner: Place the paper tape against the inner wall of the test tube, fill the test tube with the liquid solution, enough so, that the liquid reaches to the top edge of the paper strip. Leave the test paper in the test tube and let it stand submerged for approximately 30 to 60 seconds. At the end, compare the color of the test paper with the color scale through the test tube glass.

For test results evaluation please refer to Table at page 7.