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Read our primer articles on Grease Guns and Oil Sight Glasses.

CHARACTERISTICS OF "MINERAL OIL" (BEFORE DEGASIFYING)
NO. DESCRIPTION UNIT PARTICULARS TESTING METHOD
1 KINEMATICS VISCOSITY
AT 30OC CST 14.0 MAX. JIS
AT 75OC CST 4.5 MAX.
2 FLASH POINT DEG C 130.0 MIN. JIS
3 POUR POINT DEG C -30.0 MAX. JIS
4 OPTICAL DISPERSION
AT 25OC - 115.0 MIN. JIS
5 SPECIFIC GRAVITY
15/4OC - 0.87 - 0.91 JIS
6 NEUTRALIZATION VALUE
(ACIDITY) MG.KOH/G 0.01 MAX. JIS
7 CAUSTICITY 140OC X 19H- NON CORROSIVE JIS
8 DIELECTRIC CONSTANT
AT 80OC - 2.10 - 2.25 JIS
9 DIELECTRIC LOSS TANGENT
AT 80OC % 0.1 MAX. JIS
10VOLUME RESISTIVITY
AT 80OC -CM 5.0 X 1014 MIN. JIS
11 DIELECTRIC BREAKDOWN
VOLTAGE KV/2.5MM 50.0 MIN. JIS
12 COEFFICIENT OF VOLUMETRIC EXPANSION 1 /DEG C 0.75 X10-3 MAX.ASTM
13 WATER CONTENT PPM 50 MAX .KARL FISCHER METHOD
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When looking at the properties of:
- Kinematic Viscosity
- Pour Point
- Flash Point

It is look like a standard Naphthenic Type of Oil for Transformer Application

Check NYNAS Product, or any other brand like SHELL Diala Series or MOBILECT series

For top up purpose ensure that the existing oil is compatible with the new purchased one. You can consult the Oil Analysis Lab to do compatibility test prior to top up.

Regards.
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attend Reliable Plant 2024
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