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Transformer Oil Full Analysis Parameters and Test Methods
PARAMETERS TEST METHODS
Dissolved Gas
Methane, CH4
Ethane, C2H6
Acetylene, C2H2
Hydrogen, H2
Carbon Monoxide,CO
Carbon dioxide,CO2
Nitrogen, N2
Oxygen, O2
Total dissolved combustible gases
Safe handling limits
Estimated total combustible gases in the blanket
Particles per 100 ml
5 to 15 µm
15 to 25 µm
25 to 50 µm
50 to 100 µm
100 µm
Moisture Content
Dielectric Strength/ BDV
Acid Number
Interfacial Tension
Colour
Power Factor/ Dissipation Factor
Oxidation Inhibitor (DBPC)
FURANS
5 Hydroxymethy1-2-furaldehyde
2-furaldehyde
2-acetylfuran
5-methy1 2-furaldehyde
Furfuryl alcohol
Estimated Degree of Polymerization
Flash Point
Kinematic Viscosity @40°C
Corrosive Sulphur
ASTM D 3612
ASTM D 3612
ASTM D 3612
ASTM D 3612
ASTM D 3612
ASTM D 3612
ASTM D 3612
ASTM D 3612
ASTM D 3612
ASTM D 3612
ASTM D 3612
ASTM D 3612
ISO 4406
ISO 4406
ISO 4406
ISO 4406
ISO 4406
ISO 4406
IEC 60814
IEC 156
ASTM D 974
ASTM D 971
ASTM D 1500
IEC 60247
IEC 60666
ASTM D 5837
ASTM D 5837
ASTM D 5837
ASTM D 5837
ASTM D 5837
ASTM D 5837
De Pablo/Pahlaanpour Method
ASTM D 92
ASTM D 445
ASTM D 1275

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