ha-005

PECIFICATIONS: Viscosity index

Viscosity index is a change in viscosity with temperature: Viscosity decreases rapidly with increasing temperature Ex: Parafinique mineral oil, viscosity decreased 7 times when increasing T from 60 to 120 degrees C. The decrease in viscosity as the temperature increases …
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ha-004

Lubricant classification standards?

Lubricant classification standards? 1. Classification by viscosity: – SAE (Society of Automobile Engineers, Automobile Engineers Association): – ISO (International Standards Organization). – NLGI (National Lubrication Grease Institute, USA National Petroleum Institute) 2. Sort by API (American Petroleum Institute). The quality …
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