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 {HEAD ~ the metal structure} of {TAIL ~ storage tanks} contaminated with elemental phosphorus from either sludge or solid waste held therein 
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 { HEAD ~ the metal structure } of { TAIL ~ storage tanks } contaminated with elemental phosphorus from either sludge or solid waste held therein
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