Cooling Water TestKit

Test kit for cooling water systems treated covering Nitrite, Chloride and pH tests

Cooling water test kit instructions for cooling water systems treated with Caretreat 2 Diesel or Caretreat CWT AL10. Both products contain nitrite as main inhibitor for protection of steel surfaces of cooling water systems. Caretreat CWT AL10 may be used in systems containing less than 10% aluminum alloys.
Regularly (at least weekly) perform analysis of cooling water for optimal protection of the cooling water systems
Samples of cooling water should appear clear and colorless
In case of deviations of values or appearances of the sample, contact Marine Care
Use E-care as a monitoring device
Some reagents required for tests shown in this booklet are classed as hazardous and as such, a minimum protection of gloves (rubber or plastic) and safety goggles/spectacles or facemask MUST BE WORN.
In addition please note and observe the Risk and Safety phrases on each reagent container and follow handling guidelines as instructed.
GENERAL NOTES
Avoid contact with skin or eyes
In case of contact with skin or eyes rinse immediately with plenty of running tap water, and seek medical attention
Seek attention if irritation persists
In case of ingestion, wash the mouth out thoroughly with water, try to vomit and seek medical attention

Take 20 ml of cold coolingwater sample with the 20 ml syringe. Spray the 20 ml in the clean test jar.
Add 12 drops of Reagent BC1. The sample will turn orange / yellow.
Add drop by drop Reagent BC2, until a turbid dark orange to brown colour appears. Count the numbers of drops used.
Each drop is equivalent to 20 mg/l or ppm Chlorides

Chloride Test Reference
Drops of BC2 Reagent	Chloride as mg/l Cl-	Notes
1	20	Maximum Chloride levels: ← LT systems : 100 mg/l ← HT systems : 50 mg/l
2	40
3	60
4	80
5	100	Above 50 mg/l Chloride concentration; raise the nitrite level 100 ppm for every 10 mg/l chloride.
6	120
7	140
8	160	In case the chloride level is too high, reduce the amount of chlorides by partly refreshing the coolingwater with demineralized or evaporated water. After refreshing, repeat the Nitrite test. 1 mg/l is 1 ppm
9	180
10	200
11	220
12	240
13	260
14	280
15	300
16	320
17	340
18	360
19	380
20	400

Nitrite Test Reference — Caretreat 2 Diesel
Drops of N2 Reagent	Nitrite as mg/l NO₂	Notes
1	200	Maximum Chloride levels: ← LT Systems : 100 mg/l ← HT Systems : 50 mg/l
2	400
3	600
4	800	In case of too low Nitrite level dose Caretreat 2 Diesel. 1 liter per m³ gives 250 mg/l NO₂^-. In case of too high Nitrite level partly refresh the coolingwater with demineralized or evaporated water. After refreshing, repeat the Nitrite test.
5	1000
6	1200
7	1400
8	1600
9	1800
10	2000
11	2200
12	2400
13	2600
14	2800
15	3000
16	3200
17	3400
18	3600
19	3800
20	4000

Caretreat 2 Diesel — Dosing Reference
Engine type	Chloride as mg/l Cl^-	Nitrite as mg/l NO₂^-	Initial Dosing rate in l/m³
HT Systems	< 50	1500-2500	6 -10
LT Systems	< 50	1500-2500	6 - 10
LT Systems	50 - 100	1750-3000	7 - 12

Nitrite Test Reference — Caretreat CWT AL10
Drops of N2 Reagent	Nitrite as mg/l NO₂	Notes
1	200	Maximum Chloride levels: ← LT Systems : 100 mg/l ← HT Systems : 50 mg/l
2	400
3	600
4	800	In case of too low Nitrite level dose Caretreat CWT AL10 1 liter per m³ gives 50 mg/l NO₂^-. In case of too high Nitrite level partly refresh the coolingwater with demineralized or evaporated water. After refreshing, repeat the Nitrite test.
5	1000
6	1200
7	1400
8	1600
9	1800
10	2000
11	2200
12	2400
13	2600
14	2800
15	3000
16	3200
17	3400
18	3600
19	3800
20	4000

Caretreat CWT AL10 — Dosing Reference
Engine type	Chloride as mg/l Cl-	Nitrite as mg/l NO - 2	Initial Dosing rate in l/m3
HT Systems	< 50	1000-1250	20-25
HT Systems	< 50	1000-1250	20-25
LT Systems	50 - 100	1250-1500	25-30

Coolingwater pH Test Reference (7,0 - 14,0)
pH value	Status	Action
< 6,5	Corrosive to highly corrosive	See fault finding chart
7,0
7,5
8,0	Slightly corrosive
8,5	Slightly corrosive
9,0	Non corrosive	Well treated
9,5
10,0
10,5	Corrosive on Copper and Aluminium	See fault finding chart
11,0
11,5
12,0
12,5	Corrosive on Iron, Copper and Alu- minium
13,0
13,5
14,0

Fault Finding Chart	Cause(s)	Solution(s)
Chlorides far too high	Low quality feed water	Only use demineralized or evaporated wa- ter
Chlorides far too high	Sea coolingwater leakage	Search for leakage(s)
Nitrites low	Coolingwater leakage	Add Caretreat 2 Diesel / CWT AL10
Nitrites low	Coolingwater (partly) refreshed	Add Caretreat 2 Diesel / CWT AL10
Nitrites remain low	Air intake in the system	Check coolingwater pumpseals
		Check header/expansion tank
	Exhaust gasses in the system	Check for leakages, for example leaking cylinder head gaskets
	Bacteria in the system	Check for slime deposits
		Add a non corrosive biocide, Caretreat Bac-
	Product drum used for other chemical	Check Nitrite level of the product or take a new product drum
pH Coolingwater too low	Bacteria in the system	Check for slime deposits
		Add a non corrosive biocide, Caretreat Bac- teria
	Low Caretreat 2 Diesel/CWT AL10 dosage	Check dosing pump / increase dosage
pH Coolingwater too high	High Caretreat 2 Diesel / CWT AL 10 dosage	Check dosing pump / decrease dosage
pH Coolingwater too high		Refresh the system partly with demineral- ized or evaporated water

Partslist Coolingwater Testkit
Partslist Coolingwater Testkit
Description	Amount
pH strips (100 ea.) 0,0 - 14,0	1
or
pH strips (100 ea.) 7,0 - 14,0	1
Reagent BC1	1
Reagent BC2	1
Reagent N1	1
Reagent N2	1
Syringe, 1 ml	1
Syringe, 20 ml	1
Test jar with cap	1
Test tube with screwed cap	1

Read the engines manual regarding the coolingwater systems treatment
Contact us for advise
E-mail us all test figures over a period of at least 3 months
Send us a coolingwater and make-up water sample
Take a sample in a clean bottle at least 0,5 liter per sample. Fill the bottle(s) to the top

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