{"title":"氟利昂动力便携式空气采样套件。","authors":"R C CHARSHA, A L LINCH","doi":"10.1080/00968205709343481","DOIUrl":null,"url":null,"abstract":"Abstract An aspirator, designed for operation on compressed air for the driving force, has been adapted to constant pressure “Freon” operation. A limiting orifice installed ahead of the jet permits calibration based on time which eliminates the need for a metering instrument to determine sample volume. “Freon” is delivered from standard low-pressure “throw-away” refrigeration service cans, and standard midget impingers are used.","PeriodicalId":85939,"journal":{"name":"American Industrial Hygiene Association quarterly","volume":"18 2","pages":"135-8"},"PeriodicalIF":0.0000,"publicationDate":"1957-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00968205709343481","citationCount":"5","resultStr":"{\"title\":\"Freon powered portable air sampling kit.\",\"authors\":\"R C CHARSHA, A L LINCH\",\"doi\":\"10.1080/00968205709343481\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract An aspirator, designed for operation on compressed air for the driving force, has been adapted to constant pressure “Freon” operation. A limiting orifice installed ahead of the jet permits calibration based on time which eliminates the need for a metering instrument to determine sample volume. “Freon” is delivered from standard low-pressure “throw-away” refrigeration service cans, and standard midget impingers are used.\",\"PeriodicalId\":85939,\"journal\":{\"name\":\"American Industrial Hygiene Association quarterly\",\"volume\":\"18 2\",\"pages\":\"135-8\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1957-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1080/00968205709343481\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"American Industrial Hygiene Association quarterly\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1080/00968205709343481\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"American Industrial Hygiene Association quarterly","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/00968205709343481","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Abstract An aspirator, designed for operation on compressed air for the driving force, has been adapted to constant pressure “Freon” operation. A limiting orifice installed ahead of the jet permits calibration based on time which eliminates the need for a metering instrument to determine sample volume. “Freon” is delivered from standard low-pressure “throw-away” refrigeration service cans, and standard midget impingers are used.
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