Lubricating Oil Testing
Product types: engine oil, gear oil, hydraulic oil, turbine oil, compressor oil, refrigeration oil, guide rail oil, heat transfer oil, transformer oil, bearing oil, metalworking fluid, lubricating grease, internal combustion engine oil, industrial lubricating oil, marine oil and other types of lubricating oils and greases.
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Product Introduction
Detection range
(1) Product types: engine oil, gear oil, hydraulic oil, turbine oil, compressor oil, refrigeration oil, guide rail oil, heat transfer oil, transformer oil, bearing oil, metalworking fluid, lubricating grease, internal combustion engine oil, industrial lubricating oil, marine oil and other types of lubricating oils and greases.
(2) Applicable scenarios: New oil acceptance, in use oil monitoring, equipment status diagnosis, oil change cycle determination, pollution analysis, wear metal analysis, quality assessment, arbitration testing.
Testing items
(1) Physical and chemical properties
Appearance, chromaticity, density, relative density, kinematic viscosity, viscosity index, pour point, freezing point, flash point, open flash point, closed flash point, moisture, mechanical impurities, insoluble matter, ash, sulfate ash, acid value, base value, saponification value, iodine value, carbon residue, foam characteristics, air release value, demulsification time, hydrolysis stability, filterability.
(2) Cleanliness and Pollution Control
Particle pollution level (cleanliness level), moisture content, air content, solid particle count, foreign impurities, paint film tendency.
(3) Elemental and Wear Analysis
Metal element analysis (iron, copper, lead, aluminum, chromium, tin, nickel, silver, etc.), additive elements (calcium, magnesium, zinc, phosphorus, boron, etc.), and pollutant elements (silicon, sodium, etc.).
(4) Oxidative degradation and aging
Oxidation degree, nitrification degree, sulfurization degree, total acid value changes, infrared spectroscopy analysis, sludge trend, aging degree.
(5) Extreme pressure anti-wear and lubrication performance
Four ball test (maximum no bite load, sintering load, wear spot diameter), Timken test, wear resistance, extreme pressure, friction coefficient, fatigue performance.
(6) Corrosion prevention, rust prevention, and sealing compatibility
Copper corrosion, liquid-phase corrosion, rust prevention, corrosion resistance, compatibility with rubber/seals.
(7) Electrical performance (transformer oil, etc.)
Dielectric loss, breakdown voltage, volume resistivity, gas evolution, oxidation stability.
(8) Environmental Protection and Safety
Polycyclic aromatic hydrocarbons, heavy metals, chlorine content, sulfur content, and harmful substance limits.
Testing standards
GB/T 265 Petroleum products Determination of kinematic viscosity
GB/T 1995 Calculation Method for Viscosity Index of Petroleum Products
GB/T 267 Determination of Flash Point for Petroleum Products
GB/T 3535 Determination of pour point of petroleum products
GB/T 3536 Determination of pour point of petroleum products
GB/T 260 Determination of Moisture in Petroleum Products
GB/T 511 Determination of Mechanical Impurities in Petroleum Products
GB/T 4945 Petroleum products Determination of acid value and alkali value
GB/T 8022 Determination of Extreme Pressure Performance of Lubricating Oil (Four Ball Machine Method)
GB/T 3141 Industrial Liquid Lubricants ISO Viscosity Classification
GB/T 14039 Hydraulic Oil Solid Particle Pollution Level
GB/T 17476 Determination of Metal Elements in Lubricating Oil for Use
GB/T 7631 Classification of Lubricants and Related Products (Class L)
SH/T 0190 Determination of Emulsification Resistance of Lubricating Oil
SH/T 0082 Determination of Air Release Values of Oil Products
GB/T 5096 Petroleum products - Copper corrosion test method
GB/T 11143 Liquid phase corrosion test method for petroleum products
GB/T 7598 Determination of Oxidation Stability of Transformer Oil
was established in 2011. As a national high-tech enterprise recognized by the Zhejiang Provincial Higher People's Court as a judicial authentication institution for construction engineering quality, we specialize in structural performance testing and safety assessment of construction projects, special equipment, communication towers, electromagnetic environments, large bridges, and building safety appraisal.
The company has more than 100 professional and technical personnel, over 90% of whom hold various medium and senior technical certificates. Equipped with complete testing equipment worth over RMB 10 million, our business scope covers the whole country.
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