Chapter 6 COOLANT
6-3
LLC specification
LLC shall examine according to JIS K2234 section 7 (examination methods), and satisfy this specification. General
matters and the sample to the examination is shown in JIS K2234.
Table 6-2 LLC specification
Property Limit
External Not precipitation
Density
Minimum 1.112 g/cm
3
(20/20°C)[68/68°F]
(Stock solution)
Moisture Maximum 5.0 vol % (Stock solution)
Frozen temperature
30 vol % Maximum -14.5°C[6°F]
50 vol % Maximum -34.0°C[29°F]
Boiling temperature Minimum 155°C[311°F] (Stock solution)
pH 7.0 to 11.0 (30 vol %)
Bubbling character
(ASTM D3306-01)
30 vol % Maximum 4.0 ml
33
1/3 vol %
Maximum 150 ml, Disappearance of bub-
ble within 5sec.
Hard water adaptability Maximum 1.0 (50 vol %)
Metalic causticity
(88 ± 2°C[187 to
194°F]、336 ±
2Hr、 30 vol %
(E.G), 50 vol %
(P.G)
Test Piece
Mass change
Aluminum
±0.30 mg/cm
2
Cast iron
±0.15 mg/cm
2
Steel
±0.15 mg/cm
2
Brass
±0.15 mg/cm
2
Solder
±0.30 mg/cm
2
Copper
±0.15 mg/cm
2
External of test piece after the
examination
Not corrosion on surface excluding
between test piece and spacer. Discolora-
tion is OK.
Bubbling while examination Not bubbling overflow
Properties of
liquid after the
examination
pH 6.5 to 11.0
pH change ±1.0
Precipitation Maximum 0.5 vol %
External of liquid
Not remarkable discoloration, separation
and gel.
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