Journal of Korean Society of Occupational and Environmental Hygiene (한국산업보건학회지)

Korean Industrial Hygiene Association (한국산업보건학회)
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Development of feasible program of exchange period for chemical cartridge in the workplace (II) - Method of using odor threshold

작업장에서 사용 가능한 방독마스크 정화통 교체주기 프로그램의 개발(II) - 냄새 서한도(odor threshold)를 이용하는 방법

  • Han, Don-Hee (Department of Occupational Health and Safety Engineering, Inje University) ;
  • Kang, Min-Sun (Department of Occupational Health and Safety Engineering, Inje University) ;
  • Yi, Gwang Yong (Occupational Safety & Health Research Institute, KOSHA)
  • 한돈희 (인제대학교 보건안전공학과) ;
  • 강민선 (인제대학교 보건안전공학과) ;
  • 이광용 (한국산업안전보건공단 산업안전보건연구원)
  • Received : 2009.03.19
  • Accepted : 2009.06.02
  • Published : 2009.06.30
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Abstract

The greatest concern of vapor/gas respirators is when to exchange chemical cartridges, but it is very difficult to estimate the breakthrough time of them in the workplace spot due to so many factors influencing on breakthrough. There needs to study on estimating cartridge exchange period available practically in the spot, even if it is not precise. In the previous study, authors suggested the method on estimating service-life of chemical cartridges using cartridges discarded after use. This followed study was to estimate exchange period for chemical cartridges using comparison of concentrations between Korean Occupational Exposure Limits (KOELs) and odor thresholds of chemicals. Chemicals were divided into four groups, I, II, III and IV groups. Group I chemicals are relatively safe if cartridges are just or slightly delayed exchanged when smelling since odor thresholds were less than 0.5 times KOELs. Odor threshold of Group II chemicals are 0.5~2.0 times KOELs and potentially hazardous if cartridges are exchanged when smelling. Those chemicals should be conducted program on estimating service-life of cartridges, which was just previously published (J Kor Soc Occup Environ Hyg 2008;18(3) 204-215). Group III chemicals (odor thresholds are more than 2.0 times KOELs) and Group IV chemicals (odorless or no data for smelling) must be performed the above mentioned program before cartridges. Even if this method on cartridge exchange using odor threshold is practically widely used in the workplace spot in the present, program on estimating service-life of cartridges is recommended for all chemicals to reduce potentially hazards.

Keywords

Acknowledgement

Supported by : 산업안전보건연구원

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