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G• HAZARDOUS PROPERTY INFORMATION Explanations and footnotes ly Water solubility is expressed in different terms .in different references. Many references use the term "insoluble" for materi- als that will not readily mix with water, such as gasoline. However, most of these materials are water soluble at the part I , per millon or part per billion level. Gasoline for example, is insoluble in the gross sense, and will be found as a discreet layer on top of the ground water. But certain gasoline constitue- nts, such as benzene, toluene, and xylene will also be found in solutionlen the ground water at the part per millon or part per r, bil. A. Water solubility expressed as 0.2 grams water at 20'C, g means 0.2 grams per 100 L, B. Solubility of metals depends on the compound in which they are present. C. Several chlorinated hydrocarbons exhibit no flash point in conventional sense, but will burn in presence of high energy ignition source or will form explosive mixturas at tempera- tures above 200•F. D. Practically non-flammable under standard conditions. _. E. Expressed as mm Hg under standard conditions F. Explosive concentrations of airborne dust can occur in con- fined areas. G. Values for Threshold Limit Value - Time Weighted Average ;7 (TLV-TWA) are OSHA Permissible Exposure Limits (PEL) except - where noted in H. and I. H. TLV - TWA adopted by the American Conference of Government Industrial Hygienists (ACGIH) which is lower than the OSHA PEL. I. TLV - TWA recommended by the National Institute for occupa- tional Safety and Health (NIOSH) . A TLV or PEL has not been adopted by the ACGIH or OSHA. J. A. - Corrosive B. - Flammable C. - Toxic D. - Volatile ' E. - Reactive F. - Radioactive G. - Carcinogen H. - Infectious K. Dermal Toxicity data is summarized in the following three categories: F Skin penetration A -- negligible penetration {valid-polar) B - slight penetration (solid-nonpolar) C - moderate penetration(liquid-nonpolar)