Glossary H
Housing is described as structures collectively; structures in which people are housed, living accomodation, dwelling units.
Hood is a generic term for a device designed to capture contaminated air and conduct it into an exhaust duct system.
High efficiency particulate air filter (HEPA) refers to a filter which removes particles in the air by forcing it through screens containing microscopic pores.
Heat treatment solution is pertaining to a treatment in which an alloy is heated to a suitable temperature and held at this temperature for a sufficient length of time to allow a desired constituent to enter into solid solution, followed by rapid cooling to hold the constituent in solution.