Lube Oil / Lubricating Oil Analysis

Lubricating oil examination is a routine practice for evaluating oil contamination, oil health and machine health. Effective analysis of Lubricating Oil can determine the impurities and changes that can adversely affect machine health and reliability.

Oil impurities consist of water, fuel, air and soot debris such as engine section wear particles. All of these can result in the deteriorationof the engine lubricant. The occurrence of these solid impurities in engine oils results in increased friction coefficient, wear and frictional power losses as well as aggravating the surface roughness.

Pivotal responsibility of a Lubricant/Oil:

  • Lubrication – Provide a protective layer between the machine apparatus.
  • Cooling – Act as a medium for Heat Transfer.
  • Sealing – Filling in irregular surfaces
  • Protection from corrosion & oxidation.
  • Reducing and moderating of components under high stress.

Ideal equipment execution starts with regular lube oil analysis. Accurate and reliable results can retain high levels of machine performance.

Lubricating Oil analysis service empowers you to:

  • Effectively assess equipment and lubricant condition
  • Eliminate breakdowns
  • Improve equipment reliability
  • Save spare and replacement cost
  • Boost productivity

Recommended tests for various type lubricating oil are:


Test Parameters

Testing Methods


ASTM E2680

Water Content

ASTM D6304, ASTM D95 & ASTM D1533

ASTM Colour

ASTM D1500


IS 1448 (Part-16)/ ASTM D1298 & ASTM D4052

Flash Point

IS 1448 (Part-69 & Part-21) / ASTM D92 & ASTM D93/ ISO 2592 & ISO 2719

Pour Point

IS 1448 (Part-10)/ ASTM D97/ ISO 3016

Sulphur Content

ASTM D4294 & ASTM D5453/ISO 8754

Total Chlorine

ASTM D4929, D6443 & IP 510

Glycol Content

ASTM D4291

PCB Content

ASTM D4059 & D6160

Kinematic Viscosity (KV)

IS 1448 (Part-25)/ ASTM D445/ ISO 3104

Viscosity Index

IS 1448 (Part-56)/ ASTM D2270


IS 1448 (Part-2)

Total Acid Number (TAN)

IS 1448 (Part-1)/ ASTM D974, D664 & D3339/ IP 139

Total Base Number (TBN)

ASTM D2896 & D4739 & D5984/ IP139

Carbon residue Ramsbottom

IS 1448 (Part-8)/ IP 14

Conradson Carbon Residue


Micro Carbon Residue

ASTM D4530


IS 1448 (Part-4)/ ASTM D482

Sulphated Ash


Water separability (demulsibility),

ASTM D1401

Soot (FTIR)

ASTM E2412 & D7844

Foam Tendency/ Stability

IS 1448 (Part-67)

Oxidation Stability

IS 1448 (Part-106)/ IP 280

Sulphation (FTIR)

ASTM D7415 & E2412

Nitration (FTIR)

ASTM E2412

Nitrogen Content

ASTM D4629 & D5762

Copper Strip Corrosion

IS 1448 (Part-15)/ ASTM D130

Rust Preventing Characteristics

IS 1448 (Part-96)

Heptane/ Toluene Insoluble


Wear metals and additive Elements (Mg, Na, Ba, Cu, B, Pb, Mn, Ni, Al, As, Cd, Ca, Fe, P, Zn, Cr, Sn, Si, V and other trace elements)

ASTM D5185

Particle Count (NAS Value)

ISO 4406/ NAS 1368

Analytical Ferrography

ASTM D7690

Optimal equipment performance starts with consistent machinery fluid testing and analysis. TUV India thus comes in picture to help you determine the Operating Efficiency of your Machines. Our State of art NABL accredited Petroleum Chemical & Gas testing laboratory at Jamnagar is well equipped to help with all lube oil testing requirements.

About The Author

Jai HardahaSr. Executive Quality - Petroleum, Chemical & Gas Testing Laboratory