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jie shao yi zhong ce ding yong li fei huo liang (fvc) de jian yi fang fa
Pages: 9
Year: Issue:  1
Journal: Occupation and Health

Keyword:  用力肺活量测定刻度简易方法塑料袋圆柱状不能使用漏气容积实际情况;
Abstract: <正> 收集袋的制备: 选用一个容积约7000升的长圆柱状塑料袋,装满空气后把袋口扎紧,置入水中并用手挤压,以检查是否漏气。漏气者不能使用。然后向袋内装水,每装入1市斤(500克)水,在水面处的袋上划一刻度,根据试测者的实际情况,约划5~12个刻度(每一
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