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.