방진마스크의 Stainless steel arc 용접흄 여과효율에 관한 연구

송경석; 권용식; 한규태; 정규혁; 이용묵; 유일재

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자료유형: 학술저널

저자정보: 송경석 (한국산업안전공단 산업안전보건연구원 산업화학물질연구센터) 권용식 (LG 전자) 한규태 (한국더스터보) 정규혁 (성균관대학교 약학대학) 이용묵 (한국산업안전공단 산업안전보건연구원 산업화학물질연구센터) 유일재 (성균관대학교 약학대학)

저널정보: 한국산업보건학회 (구 한국산업위생학회) 한국산업보건학회지 한국산업보건학회지 제11권 제1호

발행연도: 2001.1

수록면: 42 - 47 (6page)

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초록· 키워드

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The purpose of this study was to investigate for filtration efficiency of several dust masks, comparing with filtration efficiency certified by KOSHA(Korea Occupational Safety & Health Agency), and to require of the right use of protective respirators. Using a welding fume generator and chamber, several dust masks, which were widely used in the workplaces in korea, were tested for their filtering efficiency for stainless steel arc welding fume. The filtration efficiency testing system consisted of a welding fume generator, a chamber and a filtration unit. The filtration unit was made of a mask which was inserted into the sampling cassette and another sampling cassette, which contained mixed cellulose ester filter paper. These two cassettes were connected with tubing. Stainless steel arc welding fume generator was delivered into an chamber. The welding fume in the chamber was passed into the filtration unit with flow rate of 30 liter/min. The welding fume filtration efficiency was evaluated by gravimetric measurement. Metal concentrations in the welding fume before and after filtration were measured with inductive coupling plasma analyzer. Following results were obtained: Filtration efficiency of welding fume for common hygienic mask was 63.82% and the average efficiencies for A, B, C, D, E, F and G masks were 94.62%, 96.58%, 83.20%, 82.76%, 77.25%, 86.55% and 93.22%, respectively. Our results indicate that dust masks used widely in the welding workplaces in korea are not proper for protecting worker's health and then the use of fume mask should be required.

#Stainless steel arc welding fume #Dust mask

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