中华劳动卫生职业病杂志
中華勞動衛生職業病雜誌
중화노동위생직업병잡지
CHINESE JOURNAL OF INDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES
2008年
5期
280-284
,共5页
许敏%张裕曾%刘世锋%汪利民%刘克俭
許敏%張裕曾%劉世鋒%汪利民%劉剋儉
허민%장유증%류세봉%왕이민%류극검
工作场所%油烟雾
工作場所%油煙霧
공작장소%유연무
Workplace%Mineral-oil fog
目的 研究工作场所空气中矿物油烟雾浓度的测定方法.方法 选择混合纤维滤膜、超细玻璃纤维滤膜、慢性定量滤纸、微孔滤膜4种滤料,用2种粉尘采样器在生产现场进行短时间高采气流量和长时间低采气流量采样,用电子分析天平称重,以滤料的采样效率和增量大小为主要指标.分析比较不同滤料对矿物油烟雾的采样吸附能力.结果 混合纤维滤膜在10～20 L/min的采气流量和采样10～15min(10L/min可采样20min),平均采样效率为95.61%,增量在0.87～2.60mg;超细玻璃纤维滤膜在10～20L/min采样流量下,采样10～20min,平均采样效率为97.57%,增量在0.75～2.47mg;在5～10L/min采样流量下,采样10～20 min,慢性定量滤纸和微孔滤膜平均采样效率分别为48.94%和63.15%,增量分别为0.75～2.15 mg和0.23～0.85 mg.在采气流量为3.5 L/min、采样时间为100～166 min时,超细玻璃纤维滤膜和混合纤维滤膜的平均采样效率分别为94.44%和93.45%,平均增量超细玻璃纤维滤膜为1.28 mg,混合纤维滤膜为0.78 mg;慢性定量滤纸和微孔滤膜平均采样效率分别为37.65%和88.21%,平均增量分别为4.30、1.23 mg.结论 利用混合纤维和超细玻璃纤维滤膜采样的滤膜称重法测定工作场所空气中矿物油烟雾浓度是一种准确可靠、简单可行的方法.
目的 研究工作場所空氣中礦物油煙霧濃度的測定方法.方法 選擇混閤纖維濾膜、超細玻璃纖維濾膜、慢性定量濾紙、微孔濾膜4種濾料,用2種粉塵採樣器在生產現場進行短時間高採氣流量和長時間低採氣流量採樣,用電子分析天平稱重,以濾料的採樣效率和增量大小為主要指標.分析比較不同濾料對礦物油煙霧的採樣吸附能力.結果 混閤纖維濾膜在10～20 L/min的採氣流量和採樣10～15min(10L/min可採樣20min),平均採樣效率為95.61%,增量在0.87～2.60mg;超細玻璃纖維濾膜在10～20L/min採樣流量下,採樣10～20min,平均採樣效率為97.57%,增量在0.75～2.47mg;在5～10L/min採樣流量下,採樣10～20 min,慢性定量濾紙和微孔濾膜平均採樣效率分彆為48.94%和63.15%,增量分彆為0.75～2.15 mg和0.23～0.85 mg.在採氣流量為3.5 L/min、採樣時間為100～166 min時,超細玻璃纖維濾膜和混閤纖維濾膜的平均採樣效率分彆為94.44%和93.45%,平均增量超細玻璃纖維濾膜為1.28 mg,混閤纖維濾膜為0.78 mg;慢性定量濾紙和微孔濾膜平均採樣效率分彆為37.65%和88.21%,平均增量分彆為4.30、1.23 mg.結論 利用混閤纖維和超細玻璃纖維濾膜採樣的濾膜稱重法測定工作場所空氣中礦物油煙霧濃度是一種準確可靠、簡單可行的方法.
목적 연구공작장소공기중광물유연무농도적측정방법.방법 선택혼합섬유려막、초세파리섬유려막、만성정량려지、미공려막4충려료,용2충분진채양기재생산현장진행단시간고채기류량화장시간저채기류량채양,용전자분석천평칭중,이려료적채양효솔화증량대소위주요지표.분석비교불동려료대광물유연무적채양흡부능력.결과 혼합섬유려막재10～20 L/min적채기류량화채양10～15min(10L/min가채양20min),평균채양효솔위95.61%,증량재0.87～2.60mg;초세파리섬유려막재10～20L/min채양류량하,채양10～20min,평균채양효솔위97.57%,증량재0.75～2.47mg;재5～10L/min채양류량하,채양10～20 min,만성정량려지화미공려막평균채양효솔분별위48.94%화63.15%,증량분별위0.75～2.15 mg화0.23～0.85 mg.재채기류량위3.5 L/min、채양시간위100～166 min시,초세파리섬유려막화혼합섬유려막적평균채양효솔분별위94.44%화93.45%,평균증량초세파리섬유려막위1.28 mg,혼합섬유려막위0.78 mg;만성정량려지화미공려막평균채양효솔분별위37.65%화88.21%,평균증량분별위4.30、1.23 mg.결론 이용혼합섬유화초세파리섬유려막채양적려막칭중법측정공작장소공기중광물유연무농도시일충준학가고、간단가행적방법.
Objective To study the method of concentration determination of mineral-oil fog in the air of workplace.Methods Four filter films such as synthetic fabric filter film,beta glass fiber filter film,chronic filter paper and microporous film were used in this study.Two kinds of dust samplers were used to collect the sample,one sampling at fast flow rate in a short time and the other sampling at slow flow rate with long duration.Subsequently.the filter membrane was weighed with electronic analytical balance.According to sampling efficiency and incremental size,the adsorbent ability of four different filter membranes was compared.Resuits When the flow rate was between 10～20 L/min and the sampling time was between 10～15 min,the average sampling efficiency of synthetic fabric filter film was 95.61% and the increased weight ranged from 0.87 to 2.60 mg.When the flow rate was between 10～20 L/min and sampling time was between 10～15 min,the average sampling efficiency of beta glass fiber filter film was 97.57% and the increased weight was 0.75～2.47 mg.When the flow rate was between 5～10L/min and the sampling time between 10～20 min,the average sampling efficiency of chronic fiherpaper and microporous film was 48.94% and 63.15%,respectively and the increased weight was 0.75～2.15 mg and 0.23～0.85 mg.respectively.When the flow rate was 3.5 L/min and the sampling time was between 100～166 min.the average sampling efficiency of filter film were 94.44% and 93.45%,respectively and the average increased weight was 1.28 mg for beta glass fiber fiher film and 0.78 mg for beta glass fiber filter film and synthetic fabric synthetic fabric filter film.The average sampling efficiency of chronic filterpaper and microporous film were 37.65% and 88.21%.respectively.The average increased weight was 4.30mg and 1.23 mg,respectively.Conclusion Sampling with synthetic fabric filter film and beta glass fiber filter film is credible,accurate,simple and feasible for determination of the concentration of mineral-oil fog in workplaces.
