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E-book Laboratory Safety Guidance
OSHA has established permissible exposure limits (PELs), as specified in 29 CFR 1910, subpart Z, for hundreds of chemical substances. A PEL is the chemical-specific concentration in inhaled air that is intended to represent what the average, healt…
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Deskripsi Fisik52 hlm
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No. Panggil542.1 OSH l