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APPENDIX A: HAZARDOUS PROPERTY INFORMATION <br /> Explanations and Footnotes <br /> Water solubility is expressed in different terms in different <br /> references. Many references use the term "insoluble" for materials <br /> that will not readily mix with water, such as gasoline. However, <br /> most of these materials are water soluble at the part per millon or <br /> part per billion level. Gasoline for example, is insoluble in the <br /> gross sense, and will be found as a discreet layer on top of the <br /> ground water. But certain gasoline constituents, such as benzene, <br /> toluene, and xylene will also be found in solution in the ground <br /> water at the part per millon or part per billion level . <br /> A. Water solubility expressed as 0. 2g means 0. 2 grams per 100 <br /> grams water at 20'C. <br /> B. Solubility of metals depends on the compound in which they are <br /> present. <br /> C. Several chlorinated hydrocarbons exhibit no flash point in <br /> conventional sense, but will burn in presence of high energy <br /> ignition source or will form explosive mixtures at <br /> temperatures above 200°F. <br /> D. Practically non-flammable under standard conditions. <br /> . E. Expressed as mm Hg under standard conditions <br /> F. Explosive concentrations of airborne dust can occur in <br /> confined areas. <br /> G. Values for Threshold Limit Value - Time Weighted Average <br /> (TLV-TWA) are OSHA Permissible Exposure Limits (PEL) except <br /> where noted in H. and I. <br /> H. TLV - TWA adopted by the American Conference of Government <br /> Industrial Hygienists (ACGIH) which is lower than the OSHA <br /> PEL. <br /> I. TLV - TWA recommended by the National Institute for <br /> Occupational Safety and Health (NIOSH) . A TLV or PEL has not <br /> been adopted by the ACGIH or OSHA. <br /> J. A. - Corrosive <br /> B. - Flammable <br /> C. - Toxic <br /> D. - Volatile <br /> E. - Reactive <br /> F. - Radioactive <br /> G. - Carcinogen <br /> H. - Infectious <br /> K. - Dermal Toxicity data is summarized in the following three <br /> categories: <br /> 91-044 H&S 10 <br />