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 value
External Not precipitation
Density Minimum 1.112 g/cm
3
(20/20 °C) [68/68 °F]
(Stock solution)
Water content Maximum 5.0 wt % (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 bubble
within 5 sec.
Hard water adaptability Maximum 1.0 (50 vol %)
Metallic causticity
(88 ± 2°C [190 ±
3.6°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 exam-
ination
Not corrosion on surface excluding between
test piece and spacer. Discoloration is OK.
Bubbling while examination Not bubbling overflow
Properties
of liquid
after the
examina-
tion
pH 6.5 to 11.0
pH change ± 1.0
Precipitation Maximum 0.5 vol %
External of liquid
Not remarkable discoloration, separation
and gel.
Circulation metal-
lic causticity
(98 ± 2°C [208 ±
3.6°F],
1000 Hr,
30 vol % (E.G),
50 vol % (P.G))
Test Piece
Mass
change
Aluminum, Cast iron, Steel,
Brass, Solder, Copper
±0.30 mg/cm
2
External of test piece after the exam-
ination
Not corrosion on surface excluding between
test piece and spacer. Discoloration is OK.
Properties
of liquid
after the
examina-
tion
pH 7.0 to 9.0
pH change ± 1.0
Pre-alkalinity change ± 15%
Precipitation Maximum 1.0 vol %
External of liquid
Not remarkable discoloration, separation
and gel.
Density
of ion
Fe, Cu, Al, Zn, Pb, NH
4
+
Maximum 10 ppm
To Next Page
Loading...
Need help?
General
