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limiti all' di esposizione sul luogo di lavoro, valore limite d'esposizione professionale VLEP o VME, WEL or TLV-TWA AOEL
stresses
sec.sys.
ПДКРЗ ПДК р.з. предельно допустимая концентрация химического вещества в воздухе рабочей зоны
(WEL Workplace Exposure Limit, Occupational Exposure Limits, acceptable operator exposure level (WEL/TLV)
massimo67
)
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