e/Hydrogen purity

Information
has gloss	eng: Hydrogen purity or hydrogen quality is a term to describe the lack of impurities in hydrogen as a fuel gas. The purity requirement varies with the application, for example a H2 ICE requires low hydrogen purity where a hydrogen fuel cell requires high hydrogen purity to prevent catalyst poisoning .
lexicalization	eng: hydrogen purity
instance of	(noun) a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe H, hydrogen, atomic number 1