This standard establishes a test method to measure the ability of elastomeric materials to withstand static
exposure to vapor phase sour gas environments (e.g., gaseous hydrocarbons with hydrogen sulfide [H2S]) at
elevated pressure. This test method is not designed to be an immersion or a functional test. It is designed for testing
standard O-rings or test specimens of elastomeric vulcanites cut from standard sheets (see ASTM D31822). This
test method is not applicable to testing cellular rubber or porous materials.