Journal of Korean Society of Occupational and Environmental Hygiene (한국산업보건학회지)
- Volume 3 Issue 1
- /
- Pages.91-98
- /
- 1993
- /
- 2384-132X(pISSN)
- /
- 2289-0564(eISSN)
A Case Study on the Release Characteristic and Removal Efficiency of Vinyl Chloride in the Poly Vinyl Chloride Extrusion Process
PVC압출공정의 염화비닐 발생특성과 작업환경개선에 관한 사례연구
- Park, Dong Uk (Industrial Health Research Institute. Korea Industrial Safety Co.)
- 박동욱 (한국산업안전공단 산업보건연구원)
- Published : 1993.03.31
Abstract
This study was carried out to investigate characteristic of vinyl chloride emissioned from poly vinyl chloride extrusion process and to evaluate the efficiency of local exhaust ventilation system. Before local ventilation facility was constructed in poly vinyl chloride extrusion process, the average worker exposure to vinyl chloride was 3.15 ppm, which exceeded Threshold Limit Value of American Conference of Gorvernmental Industrial Hygienists (ACGIH-TLV), 1 ppm. lt is possible that vinyl chloride residues in the poly vinyl chloride resin was released or degased due to extrusion heat. The larger the width of vinyl tube become, the higher worker exposure to vinyl chloride was. It is estimated that vinyl chloride from vinyl chloride resin increased as amount of poly vinyl chloride resin extruded in the extrusion process increased. Canopy hood was an appropriate type for poly vinyl chloride resin extrusion process. This local exhaust ventilation has fan static pressure of 7.65 inch wg(