Metal content: Additives in lubricant production include substances such as detergents, dispersants, antioxidants, abrasive agents, etc. Many additives contain one or more metallic elements. determined in this method. The amount of water, water content: Water destroys oil Rusting metal parts Water accelerates oxidation Water contaminates oil Maximum water content of 0.05% V

– Used to assess the ability of oil to corrosive to corrosive metals. – The sulfur compounds in oil will cause corrosion of many different metals. – Corrosion is defined as an oxidation on metal surfaces causing metal loss or accumulation of deposits. – Hydraulic oil, aviation oil, metal cutting oil, especially transformer oil and […]

The purpose is to assess the degree of contamination or loss of quality (heat and chemical) of the oil. Insoluble residue = soot, dust, metal fragments (due to abrasion), products of oxidation and hydrolysis … Determined by the following methods: Total insoluble residue: Number of mg of residue collected after filtering 100ml of oil => […]

Sulfate ash content is the amount of residue left after completely burning the oil sample. Car engine oil: Sulfate ash content Determination method: ASTM D 874 – Petrol engine oil: sulfate ash ≤ 1,5% m – Diesel engine oil: sulfated ash ≤ 2% m

Density is the ratio of the density of a given substance at a specified temperature (15 ° C or 30 ° C) to the density of pure water at a specified temperature (15 ° C or 30 ° C). ). The density and density of a substance are equal if considering the density of water […]