首页    期刊浏览 2024年11月30日 星期六
登录注册

文章基本信息

  • 标题:Correlations between Workplace Protection Factors and Fit Factors for Filtering Facepieces in the Welding Workplace
  • 本地全文:下载
  • 作者:Don-Hee HAN
  • 期刊名称:Industrial Health
  • 印刷版ISSN:0019-8366
  • 电子版ISSN:1880-8026
  • 出版年度:2002
  • 卷号:40
  • 期号:4
  • 页码:328-334
  • DOI:10.2486/indhealth.40.328
  • 出版社:National Institute of Occupational Safety and Health
  • 摘要:Workplace protection factor (WPF) means a measure of the actual protection of respirator provided in the workplace when correctly worn. While fit factor (FF) represents a quantitative measure of the fit of a particular respirator to an individual and it is determined in the laboratory. To evaluate the relationship between WPF and FF is very important since FF may or may not be taken advantage of estimating WPF. Outside and inside Fe concentrations for three brand N95 filtering facepieces were collected on 14 workers/three respirator combinations in the welding workplace. The WPF measurements on the samples of the three respirator brands worn by 14 workers were observed to range from 2.2 to 132.9 with a geometric mean of 15.9 and a geometric standard deviation of 2.63. Respirator performances as measured by the WPF differed significantly among different respirator brands (p<0.05). In this study, correlations were found between the WPF measurements and the FF data for all samples of the three respirators (R2=0.38). The percentage of Fe particles having a smaller fraction than 1.1 μm diameter was observed as 71.6% of the total.
  • 关键词:Workplace protection factor;Fit factor;Welding workplace;N95 respirator
国家哲学社会科学文献中心版权所有