Grease Mechanical Impurity Content Determination Instrument (Microscope Method) The Mechanical Impurity Analyzer for Grease is designed and manufactured in accordance with the national industry standard SH/T 0336-1994 "Determination of Impurity Content in Grease (Microscopic Method)". This instrument provides an environmentally friendly and scientifically validated method for detecting mechanical impurities in grease. Technical Specifications Eyepiece type: binocular