As used herein, the term phosphorus containing material is intended, for example, to cover both the pyrophoric sludge and substantially solid elemental phosphorus containing products described before as well as the metal structure of storage tanks contaminated with {HEAD ~ elemental phosphorus} from {TAIL ~ either sludge} or solid waste held therein 
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As used herein , the term phosphorus containing material is intended , for example , to cover both the pyrophoric sludge and substantially solid elemental phosphorus containing products described before as well as the metal structure of storage tanks contaminated with { HEAD ~ elemental phosphorus } from { TAIL ~ either sludge } or solid waste held therein
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