World Health Organization Flame retardants tris (2-butoxyethyl) phosphate,tris (2-ethylhexyl) phosphate and tetralis (hydroxymethyl) phosphonium salts. - - Geneva W H O 2000 - 130 p. 24 cm. - IPCS :EHC 218 . Organophosphorous Compounds -Toxicity, Phosphoric Acid Esters -Toxicity ISBN: 92 4 157218 3 Subjects--Topical Terms: Phosphoric Acid Esters -ToxicityOrganophosphorous Compounds -Toxicity Dewey Class. No.: SERIALS / WHO