Category D Fluid Service is the less hazardous service. It includes fluids that are nontoxic, nonflammable, and not dangerous to human tissue and are at a pressure less than 1035 kPa (150 psi) and temperature from -29°C through 186°C (-20°F through 366°F).

What is a Category D fluid service?

Category D Fluid Service is the less hazardous service. It includes fluids that are nontoxic, nonflammable, and not dangerous to human tissue and are at a pressure less than 1035 kPa (150 psi) and temperature from -29°C through 186°C (-20°F through 366°F).

What are category M fluids?

3 Definition Category M Fluid Service: A fluid service in which the potential for personnel exposure is judged to be significant and in which a single exposure to a very small quantity of a toxic fluid, caused by leakage, can produce serious irreversible harm to persons on breathing or bodily contact, even when prompt …