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Halogenated hydrocarbons - 4 entradas encontradas

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  • País / Organización: Estados Unidos
  • Halogenated hydrocarbons


CIS 00-618
Department of Labor - Occupational Safety and Health Administration (OSHA)
Cloruro de metileno: Ley final [USA]
Methylene chloride: Final Rule [USA] [en inglés]
En 1997, la OSHA emitió una norma para la regulación de la exposición laboral al cloruro de metileno (diclorometano), que rebajaba el límite de exposición máxima admisible para 8 h (LEM) de 500 ppm a 25 ppm, y establecía un límite de exposición a corto plazo de 15 min (STEL) de 125 ppm. Esta normativa final añade una provisión para la eliminación de la protección médica temporal para los trabajadores expuestos a un riesgo particular debido a una condición médica existente. También modifica las fechas de inicio en las cuales algunos empresarios deben cumplir la norma.
Federal Register, 22 set. 1998, vol.63, n°183, p. 50712-50722.


CIS 80-129
U.S. Department of Labor, Occupational Safety and Health Administration.
Occupational exposure to 1,2-dibromo-3-chloropropane (DBCP) - Occupational safety and health standards.
This permanent standard dated 10 Mar. 1978 (effective: 17 Apr. 1978) establishes a TLV of 1ppb as an 8h time-weighted average for DBCP. The employer must ensure that no worker is exposed to eye or skin contact with this substance. The standard contains other provisions concerning: worker information and training, supply of respirators and protective clothing and equipment, employers' compliance programme, selection of respirator type for different concentrations of DBCP, exposure monitoring, cleaning of surfaces, hygiene facilities and practices, medical surveillance (frequency and content of medical examinations, medical reports), emergency situations, warning signs and out-of-bounds areas, labelling. Appendices: safety data sheet (substance identification, health hazard data, first aid, precautions for safe use, handling and storage), chemical and physical properties, medical surveillance and treatment guidelines, preventive medicine. The text of the standard is preceded by background and supplementary information.
Federal Register, 17 Mar. 1978, Vol.43, No.53, p.11514-11533. 5 ref.

CIS 78-1320 Polychlorinated biphenyls (PCBs) - Disposal and marking.
These new regulations (entry into force: 18 Apr. 1978), dated 8 Feb. 1978, apply to the manufacture, processing, distribution, use or disposal of polychlorinated biphenyls (PCBs). They establish procedures, methods and other requirements for disposal, storage and marking of PCBs. Sections refer to: definitions; disposal of PCBs; marking of PCBs. Annexes deal with incineration; chemical waste landfills; storage and disposal; decontamination; marking formats; and records and monitoring. The regulations are preceded by explanations of the final text.
Federal Register, 17 Feb. 1978, Vol.43, No.34, p.7150-7164. Illus. 95 ref.


CIS 76-729
Code of Federal Regulations, Title 29, Chapter 17, Part 1910: Occupational Safety and Health Standards.
Occupational Safety and Health Standards - Standard for exposure to vinyl chloride.
This amendment to the Williams-Steiger Occupational Safety and Health Act of 1970 is dated 1 Oct. 1974 and came into force on 1 Jan. 1975. It adds a new section 1910.93q applying to any area or operation where vinyl chloride monomer (VCM) is manufactured, reacted, handled, processed, released, repacked or stored. A standard of permissible exposure to VCM is laid down (TLV: 1ppm averaged over any 8h period; ceiling of 5ppm averaged over any period not exceeding 15min; no employee to be exposed to direct contact with liquid VCM). The standard gives background information on VCM and its carcinogenicity (animal experiments, exposure limits, etc.) and contains provisions for the monitoring of employees (initial monitoring, frequency, method of monitoring, training, keeping of employee records, access of employees to records, etc.), and employee protection ("action level" of 0.5ppm averaged over an 8h work day; regulated areas; respiratory protection; training; emergency stations). An abridged French version of this standard has been published (Traduction INRS 29 A-75) by Institut national de recherche et de sécurité, 30 rue Olivier-Noyer, 75014 Paris Cedex 14, France.
Federal Register, 4 Oct. 1974, Vol.39, No.194, p.35890-35898.