Factors Affecting Rotational Viscometer Measurement of ViscosityRotational Viscometer - Temperature InfluenceThe effect of temperature change on the viscosity of the polymer solution is significant. The viscosity of the polymer solution decreases with the increase of temperature. The reason is that

Why Measure the Vapor Pressure of Petroleum Products?The vapor pressure of oil is one of the important indicators that indicate the evaporation performance, start-up performance, tendency of generating vapor resistance, and the amount of light distillate lost during storage.1. To Judge the volatilit

What is the oxidation stability of petroleum products and the importance of testingThe ability of petroleum products to resist permanent changes in their properties caused by the action of air (or oxygen) is called the oxidation stability of petroleum products. The anti-oxidation stability of lubric

Four Ball Tester and Four Ball Testing MethodAbrasion resistance test of oil (four-ball test):The PB value is also the maximum non-jamming load and is a typical indicator of the anti-wear performance of lubricants. The PD value is an extreme pressure performance index, and ZMZ is called the comprehe