14 APPENDIX
Mitsubishi Diesel Engine S12R OPERATION & MAINTENANCE MANUAL
205
Pub. No. 291Y1-40720 Revision: 5
Table 14-6 LLC Specifications (1/3)
Test items Standard value
External appearance No precipitation
Specific gravity
Minimum 1.112 g/cm [69.4199 lb/ft
3
]
(20/20°C) [20/68°F] (undiluted solu-
tion)
Water content
5.0 mass% or less (undiluted solu-
tion)
Freezing temperature
30% by volume in aqueous solu-
tions
-14.5°C [5.9°F] or less
50% by volume in aqueous solu-
tions
-34.0°C [-29.2°F] or less
Equilibrium reflex boiling point
155°C [311°F] or more (undiluted
solution)
pH
7.0 to 11.0 (30% by volume in aque-
ous solution)
Foamability (ASTM D3306-01)
30% by volume in aqueous solu-
tions
4.0 mL or less
33 1/3% by volume in aqueous
solutions
150 mL or less, defoaming time 5
sec. or less
Hard water compatibility
1.0 or less (50% by volume in aque-
ous solution)
Metallic causticity
(88±2°C
[190.4±4°F], 336±2
hrs, 30% by volume
in aqueous solution
(ethylene glycol),
50% by volume in
aqueous solution
(propylene glycol))
Metallic 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
Visual inspection of test piece af-
ter testing
Any corrosion must not be observed
except for the contacting position of
the test piece and spacer. Discolor-
ation is allowed.
Bubble formation during test Bubbles must not overflow.
Property of
liquid after
test
pH 6.5 to 11.0
pH change ±1.0
Precipitation
0.5% by volume in aqueous solution
or less
Visual inspection of liquid
No significant discoloration. No sig-
nificant changes such as separation
and gel generation.
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