Vapor-phase Rust Preventing Characteristics of Hydraulic Fluids

MethodType of TestingRegularly Tested Product Types Description
ASTM D5534 ModifiedVapor-phase rust-preventing characteristics of hydraulic fluidsLubricating and metalworking fluidsThis test is used to evaluate a fluid’s ability to protect metal in the vapor phase. Metal specimens are not directly treated with VCI material, but instead are placed in a high humidity environment in the presence of the fluid. Specimens are then rated for presence of rust.