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Notas: Sumario: Thresold limit values refer to airborne concentrations of substances and represent conditions under which it is believed that nearly all workers may be repeatedly exposed without adverse effect. The guides that gradually have become the most widely accepted are those issued by the American Conference of Governmental Industrial Hygienists, and termed Thresold limit values (TLVs)Registros relacionados: En: National safety news. - Chicago. - Vol. 120, nº 4, October 1979 ; p. 80-88Materia / lugar / evento: American Conference of Governmental Industrial Hygienists Higiene industrial Contaminantes químicos Sustancias tóxicas y peligrosas Valores TLV Contaminación atmosférica Estados Unidos Títulos secundários: Título: National safety news
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Thresold limit values for chemical substances in workroom air : adopted by ACGIH for 1979