Llc Specification; Table 6-2 Llc Specification - Mitsubishi Heavy Industries L-Series Operation & Maintenance Manual

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.
External
Density
Water content
Frozen temperature
Boiling temperature
pH
Bubbling character
(ASTM D 3306-01)
Hard water adaptability
Test piece
Metallic causticity
(88±2°C
[190±36°F],
336±2 Hr,
30 vol % (E.G),
50 vol % (P.G))
Bubbling while examination
Properties of
liquid after the
examination
Test piece
Circulation
metallic causticity
(98±2°C
[208±36°F],
1000 Hr,
30 vol % (E.G),
Properties of
50 vol % (P.G))
liquid after the
examination

Table 6-2 LLC specification

Property
30 vol %
50 vol %
30 vol %
33 vol %
1/3
Aluminum
Cast iron
Steel
Mass
change
Brass
Solder
Copper
External of test piece after the
examination
pH
pH change
Precipitation
External of liquid
Aluminum, Cast
Mass
iron, Steel, Brass,
change
Solder, Copper
External of test piece after the
examination
pH
pH change
Pre-alkalinity change
Precipitation
External of liquid
Density Fe, Cu, Al, Zn, Pb,
4 +
of ion NH
Standard
Not precipitation
3
Minimum 1.112 g/cm [69.4199 lb/ft
(20/20 °C) [68/68 °F] (Stock solution)
Maximum 5.0 weight % (Stock solution)
Maximum -14.5 °C [6 °F]
Maximum -34.0 °C [-29 °F]
Minimum 155 °C [311 °F] (Stock solution)
7.0 to 11.0 (30 vol %)
Maximum 4.0 ml
Maximum 150 ml, Disappearance of bubble
within 5 sec.
Maximum 1.0 (50 vol %)
±0.30 mg/cm 2
2
±0.15 mg/cm
±0.15 mg/cm 2
2
±0.15 mg/cm
±0.30 mg/cm 2
2
±0.15 mg/cm
Not corrosion on surface excluding between
test piece and spacer. Discoloration is OK.
Not bubbling overflow
6.5 to 11.0
±1.0
Maximum 0.5 vol %
Not remarkable discoloration, separation
and gel.
2
±0.30 mg/cm
Not corrosion on surface excluding between
test piece and spacer. Discoloration is OK.
7.0 to 9.0
±1.0
±15 %
1.0 vol %
Not remarkable discoloration, separation
and gel.
Maximum 10 ppm
Chapter 6 COOLANT
3
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6-3