SDMO R33C3, User And Maintenance Manual

Page: 152 / 244

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 % 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 D 3306-01)
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±36°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 Maximum 0.5 vol %
External of liquid
Not remarkable discoloration, separation
and gel.
Circulation
metallic causticity
(98±2°C
[208±36°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
examination
Not corrosion on surface excluding between
test piece and spacer. Discoloration is OK.
Properties of
liquid after the
examination
pH 7.0 to 9.0
pH change ±1.0
Pre-alkalinity change ±15 %
Precipitation 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
150/242