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2. |
Composition of coolant
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2.1 |
Normal case
50 % by volume water
50 % by volume corrosion preventive and antifreezing agent*; antifreeze down to approx. -37 °C
Admissible analysis values: |
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Sum of alkaline earths (water hardness): |
max. 3,6 mmol/l |
= max. 20° German hardness
= max. 36° French hardness
= max. 25° British hardness
= max. 21° American hardness |
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pH-value at 20 °C:
Chlorine ion content:
Sum chlorides + sulphates:
max. admissible usability:
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6,5 bis 8,5
max. 100 mg/l
max. 200 mg/l
3 years
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2.2 |
Use in frost-proof countries
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Field of application: at permanent ambient temperatures above the freezing point.
90 % by volume water
10 % by volume corrosion preventive additive (coolant additive)**; admissible deviation 1 % by volume
Admissible analysis values:
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Sum of alkaline earths (water hardness): |
max. 2,7 mmol/l |
= max. 15° German hardness
= max. 27° French hardness
= max. 19° British hardness
= max. 16° American hardness |
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*
** |
see chapter 4
see chapter 5 |
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pH-value at 20 °C:
Chlorine ion content:
Sum chlorides + sulphates:
max. admissible usability:
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6,5 bis 8,0
max. 80 mg/l
max. 160 mg/l
1 year
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Attention:
Do not mix corrosion preventive additives with corrosion preventive/antifreezing agent or processing agent! |
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2.3 |
Exception in frost-proof countries
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Field of application: at permanent ambient temperatures above the freezing point and if provably neither released corrosion preventive and antifreezing agent nor coolant additive are available, the coolant may have the following mixing:
99 % by volume water
1 % by volume processing agent***
Admissible analysis values: |
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|
Sum of alkaline earths (water hardness): |
max. 2,7 mmol/l |
= max. 15° German hardness
= max. 27° French hardness
= max. 19° British hardness
= max. 16° American hardness |
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pH-value at 20 °C:
Chlorine ion content:
Sum chlorides + sulphates:
max. admissible usability:
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6,5 bis 8,0
max. 80 mg/l
max. 160 mg/l
6 month
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* |
see chapter 6 |
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For topping up, use an emulsion of 0.5 - 1.0 % by volume. Use 1.5 % by volume in case of new filling or filling after a complete cleaning.
Attention:
Too high concentrations (> 1.5 % by volume) have a detrimental effect on sealings and hoses! |
