Mitsubishi S16R-Y1PTA Operation & Maintenance Manual page 55

Chapter 6 COOLANT
Test piece
Circulation metal-
lic causticity
(98±2°C
[208.4±35.6°F],
1000 Hr,
30 vol %
(E.G)
Properties of
50 vol %
liquid after the
(P.G)
examination
Test piece
Circulation metal-
lic causticity
(88±3°C
[190.4±37.4°F],
1000 ± 2 Hr,
30 vol %
(E.G)
Properties of
liquid after the
examination
Condition of
parts
Silicon
Rubber adapt-
ability Acrylonitrile
(30 vol %, butadiene rub-
115°C [239°F], ber
360 Hr)
Ethylene pro-
pylene diene
monomer
Storage stability vol % (30 vol %, room temperature, 6 Hr)
6-4
Table 6-2 LLC specification
Property
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,
of ion NH4+
Aluminum
Cast iron
Steel
Mass
change
Brass
Solder
Copper
External of test piece after the
examination
pH
pH change
External of liquid
Pump seal
Inside of pump case and blade Not remarkable corrosion
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
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 % or less
Not remarkable discoloration, separation
and gel.
10 ppm or less
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
-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 %
0.3 or less