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Ferrous & Non Ferrous Metals

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Ferrous & Non Ferrous Metals Testing

Food / Agro Testing

Oil & Petroleum Testing

Polymers & Rubbers Testing

Transformer Oil Testing

Paper & Packaging Testing

Pesticides Testing

Processed Food Nutrition Value Testing

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Diesel Testing Lab

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Home » Oil & Petroleum Testing

Oil & Petroleum Testing

Oil & Petroleum Testing solutions offered comprise a wide range of tests for checking quality standards of oil as well as petroleum products. Among many tests, one that is performed includes Ferrography that is based on separating ferrous wear particles from a lubricant as well as arranging according to size. This is done with analysis through microscope where Ferro gram helps in providing information for identification of wear particle types as well as describes wear mode generating the particles. Apart from this, some of the other tests that are performed include:

NABL accredited Sigma performs oil testing by checking its quality, purity, contamination by Oil Condition Monitoring , Lubricants Testing, Transformer Oil Testing, Crude Oil Quality Testing, Edible Fats and Oils Testing as per recognized industry standards such as ISO, IP, FDA and others.
Viscosity –

Flash Point –

Fire Point –

Cloud Point –

Density –

Pour Point –
Conradson Carbon Residue (CCR) –

Water & Sediments –

Acid number (TAN) –

Base number (TBN) –

Neutralization Value –

Sulphur Content –

Distillation Range –

Aniline Point –

Cetane Number –

Copper Strip Corrosion –

Wear Metals - Ca, Mg, Na, K, Mo, Cu, Cr, Zn, P, Ba, B, Al, Pb, Mn, Ni, Si, V, Sn, Ag, Fe etc –

Diesel Testing –

Oil Testing –

Rubber Testing –

Transformer Oil Testing –

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Polymers & Rubbers Testing

Polymers & Rubbers Testing solutions offered helps in judging the quality of polymers and rubber. Among the many tests performed, one of them is Ash Content test that finds usage in determining if a material is filled. The test helps in identifying total filler content with the test method in compliance to ASTM D2584, D5630, ISO 3451. Apart from this, some other tests that are performed here include:
Bulk Density –
Test Method: ASTM D1895B
Compression Set Under Constant Deflection –

Test Method: ASTM D395 B
Compression Properties –

Test Method: ASTM D695, ISO 604
Charpy Impact –
Test Method: ISO 179
Carbon black in Olefin Plastic –
Test Method: ASTM D1603
Coefficient of Friction –
Test Method: ASTM D1894
Deflection Temperature under Load (DTUL or HDT) –
Test Method: ASTM D648, ISO 75
Density and Specific Gravity –
Test Method: ASTM D792, ISO 1183
Durometer Hardness (Shore Hardness) –
Test Method: ASTM D 2240
Differential Scanning Calorimeter (DSC) –
Test Method: ASTM D3417 / D418 / E1356, ISO 11357
Dielectric Constant and Dissipation Factor –
Test Method: ASTM D150, IEC 60250
Flexural Properties –
Test Method: ASTM D790, ISO 178
Flammability –
Test Method: UL94, ASTM D635
FTIR (Fourier Transform Infrared Spectrometry) –
Test Method: ASTM E1252
Impact Resistance of Plastic Film –
Test Method: ASTM D1709, ISO 7765-1
Izod Impact –
Test Method: ASTM D256, ISO 180
Melt Flow Index (MFI) –
Test Method: ASTM D1238, D3364, ISO 1133
Oxygen Concentration to Support Candle-like Combustion of Plastics –
Test Method: ASTM D2863
Peel Test –

Test Method: ASTM D903, D1876, D3167
QUV (Accelerated Weathering) –

Test Method: ASTM D4329, D4587, ISO 4892, SAE J2020
Resistance of Plastics to Chemical Reagents –
Test Method: ASTM D543
Shear Strength by Punch Tool –
Test Method: ASTM D732, A2LA
Surface Resistivity –
Test Method: ASTM D257, IEC60093
Tear Resistance of Plastic Film by Pendulum Method (Elmendorf Tear) –
Test Method: ASTM D1922
Tensile Test –
Test Method: ASTM D412, ASTM D638, ISO 527
Thermo Gravimetric Analysis (TGA) –
Test Method: ASTM E1131, ISO 11358
Vicat Softening Temperature –
Test Method: ASTM D1525, ISO 306
Viscosity of Polymers –
Test Method: ASTM D2857, D4603
Water Absorption –
Test Method: ASTM D570
Xenon-Arc Exposure (Weather-Ometer) –
Test Method: ASTM D2565, D4459, G155, SAE J1885, J2527, J1960

Yes! I am interested


Transformer Oil Testing

Transformer oils are subject to electrical and mechanical stresses while a transformer or other electrical distribution equipment is in operation. The analysis of insulating oils provides information about the oil, but also enables the detection of other possible problems, including contact arcing, aging insulating paper and other latent faults and is an indispensable part of a cost-efficient electrical maintenance program.

Though the failure risk of a transformer and other oil-filled electrical equipment is small, when failures occur, they inevitably lead to high repair costs, long downtime and possible safety risks. By accurately monitoring the condition of the oil, suddenly occurring faults can be discovered in time and outages can potentially be avoided.

Properties of Transformer or Insulating Oil

Some specific parameters of transformer or insulating oil should be considered to determine the serviceability of that oil-







The Furan and DGA tests are specifically not for determining the quality of transformer oil, but for determining any abnormalities in the internal windings of the transformer or the paper insulation of the transformer, which cannot be otherwise detected without a complete overhaul of the transformer.

Yes! I am interested

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Building Material Testing | Coal Testing | Chemical Testing | Environmental Testing | Ferrous & Non Ferrous Metals Testing | Food / Agro Testing | Oil & Petroleum Testing
Paper & Packaging Testing | Pesticides Testing | Processed Food Nutrition Value Testing | Soil Testing  | Water Testing | Textile Testing | RoHS Compliance Testing
Diesel Testing Lab | NDT Testing | Residue Analysis | Toy Testing | Electrical Testing | Automotive Part Testing
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