공기중 염화비닐단량체 포집시 온도가 파과현상에 미치는 영향

박윤정; 이상회; 김치년; 원종욱; 노재훈

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자료유형: 학술저널

저자정보: 박윤정 (연세대학교 외과대학 산업보건연구소) 이상회 (연세대학교 외과대학 산업보건연구소) 김치년 (연세대학교 외과대학 산업보건연구소) 원종욱 (연세대학교 외과대학 산업보건연구소) 노재훈 (연세대학교 외과대학 산업보건연구소)

저널정보: 한국산업보건학회 (구 한국산업위생학회) 한국산업보건학회지 한국산업보건학회지 제8권 제1호

발행연도: 1998.1

수록면: 115 - 123 (9page)

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Vinyl chloride monomer exists as gas phase at normal temperature and reacts with oxygen and strong oxidant in the air to form oxidized materials. Because of being easily synthesized, it is used as a main source at the synthetic reaction process of PVC synthesis factories. Ministry of Labor regulates its usage as a carcinogen and its exposure level as 1 ppm. But the amount of VCM production in PVC and VCM production process hasn't been exactly estimated. In addition, facilities of this factory are located in outdoor. Therefore, this study was designed to investigate effects of temperature on breakthrough of charcoal tube at a fixed concentration and temperature during VCM sampling based on NIOSH and OSHA methods which were used as methods of occupational environment measuring and analysis. During the sampling of VCM, methods of OSHA and NIOSH require flow rate of 0.05 lpm and sampling volume of $3{\ell}$, $5{\ell}$ respectively, at this time carbon molecular sieve tube and coconut shell charcoal tube are used to observe the breakthrough along with concentration and temperature. As a result, significant difference between average adsorbed amounts of OSHA methods but that of NIOSH methods cannot be found. NIOSH method is likely to be effected by high temperature and normal temperature in high concentration. Breakthrough is not found in the method of OSHA at different conditions of temperature and concentration. As the result of this study we could verify that breakthrough occurred in the process of sampling VCM with NIOSH methods. Therefor in summer time, breakthrough should be considered and research on the breakthrough volume should be done. It is considered the research about the specificity of the coconut shell charcoal and carbon molecular sieve sorbent should be done when sampling VCM in comming days.

#VCM #Sampling #Temperature #Breakthrough #NIOSH method #OSHA method #Coconut shell charcoal #Carbon molecular sieve

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