Mitsubishi S6B Operation & Maintenance Manual page 56

Chapter 6 COOLANT
Test Piece
Circulation metal-
lic causticity
(88 ± 3°C [190 ±
5.4°F],
1000 ± 2 Hr,
30 vol % (E.G))
Properties
of liquid
after the
examina-
tion
Condition
of parts
Silicon
Rubber adapt-
Acrylo-
ability
nitrile buta-
(30 vol %,
diene
115 °C [239 °F],
rubber
360 Hr)
Ethylene
propylene
diene
monomer
Storage stability vol % (30 vol %, room temperature, 6 Hr)
6-4
Table 6-2 LLC specification
Property
Aluminum
Cast iron
Steel
Mass
change
Brass
Solder
Copper
External of test piece after the exam-
ination
pH
pH change
External of liquid
Pump seal
Inside of pump case and blade
Tensile strength change
Elongation change
Volume change
Hardness change
Tensile strength change
Elongation change
Volume change
Hardness change
Tensile strength change
Elongation change
Volume change
Hardness change
Standard value
2
±0.60 mg/cm
2
±0.30 mg/cm
2
±0.30 mg/cm
2
±0.30 mg/cm
2
±0.60 mg/cm
2
±0.30 mg/cm
Not corrosion on surface excluding between
test piece and spacer. Discoloration is OK.
6.5 to 11.0
Maximum ±1.0
Not remarkable discoloration, separation
and gel.
Not trouble while the examination
Not remarkable corrosion
-60 to 0%
-40 to +20%
0 to +40%
-20 to +10%
0 to +10%
-15 to +15%
0 to +40%
-10 to 0%
0 to +10%
-30 to 0%
0 to +10%
-10 to 0%
Maximum 0.3