6-3
Chapter 6 COOLANT
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 Standard
External Not precipitation
Density
Minimum 1.112 g/cm
3
[69.4199 lb/ft
3
] (20/20
°C) [68/68°F]
(Stock solution)
Water content Maximum 5.0 weight % (Stock solution)
Frozen temperature
30 vol % -14.5°C [5.9°F] or less
50 vol % -34.0°C [-29.2°F] or less
Boiling temperature 155°C [311°F] or higher (Stock solution)
pH 7.0 to 11.0 (30 vol %)
Bubbling character
(ASTM D3306-01)
30 vol % 4.0 ml [8.79 gal] or less
33
1/3 vol %
150 ml [0.032 gal] or less, Disappearance of
bubble within 5 sec.
Hard water adaptability 1.0 or less (50 vol %)
Metallic causticity
(88±2°C
[190.4±35.6°F],
336±2 Hr,
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. Discoloration 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 0.5 vol % or less
External of liquid
Not remarkable discoloration, separation
and gel.
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