Gaskets and seals may be evaluated for environmental conditions specific to certain end-use applications. Below is a list of some of the environmental conditions in ANSI/UL 157, Gaskets and Seals. Gaskets and seals can also be evaluated with respect to additional environmental conditions specified in end-product standards.
|C||Gasoline/Alcohol blends up to 15% alcohol|
|D||Naptha or kerosene|
|F||Manufactured gas or natural gas|
|G||Diesel fuel, fuel oil or lubricating oil|
|H||Heated fuel oil|
|J||Liquefied petroleum gas (LP-gas)|