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| Reference: vacated = struck down? Reference information: The MSDS HyperGlossary: PEL and TWA www.ilpi.com/msds/ref/pel.html6 Dec 2010 – A Permissible Exposure Limit (PEL) is the maximum amount or concentration ... of Appeals vacated (struck down) the 1989 PEL revisions stating "(1) OSHA ... Toxicological professionals generally disagree with both of those points. ... But in the years since this ruling, OSHA has enacted or updated PEL's for ... [PDF] Material Safety Data Sheets: Chemical Safety & You www.mihisto.org/pdf/msds.pdfFile Format: PDF/Adobe Acrobat - Quick View really examine what all those things mean! Let's take a ... statement that includes, “OSHA Vacated PELs: Ethylbenzene: 100ppm TWA; 435 mg/m3 TWA… ... OSHA has the third category that gives the final Permissible Exposure Limits (PELs). ... stricter limit set by OSHA in 1989, that was struck down by the courts in 1992. ... -------------------------------------------------- Note added at 23 mins (2011-12-12 21:33:55 GMT) -------------------------------------------------- http://www.ilpi.com/msds/ref/pel.html A VPEL or Vacated PEL is an older PEL set by OSHA but later "vacated" (retracted) under court order. However, some states may continue to enforce these lower levels. See below. -------------------------------------------------- Note added at 27 mins (2011-12-12 21:37:45 GMT) -------------------------------------------------- http://pol.proz.com/kudoz/english_to_polish/chemistry;_chem_... -------------------------------------------------- Note added at 27 mins (2011-12-12 21:38:12 GMT) -------------------------------------------------- nieobowiązujące PEL |
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