发明名称 DOSIMETER VOOR DE OPSPORING VAN GASVORMIGE VERONT- REINIGINGEN MET EEN DIFFUSIE-INRICHTING ERVOOR, ALS- MEDE WERKWIJZE VOOR DE BEPALING VAN EEN GEINTEGREERDE BLOOTSTELLING AAN EEN GASVORMIGE VERONTREINIGING IN DE ATMOSFEER.
摘要 A personal dosimeter for measuring the average concentration of a gaseous contaminant over a given period of time is provided. The dosimeter comprises a sealed pouch having a reaction chamber, which contains a gas-collecting medium, and at least one compartment. Each compartment can be separately sealed and can contain a different reagent, the seals being individually breakable such that the reagents can be separately released into the reaction chamber. Into the pouch is sealed a gas diffusion device which consists of a formation of parallel, potted, hollow fibers or filaments. The diffusion device is oriented such that one end of the fibers is open to the atmosphere and the other end communicates with the interior of the reaction chamber.
申请公布号 NL7905307(A) 申请公布日期 1980.01.09
申请号 NL19790005307 申请日期 1979.07.06
申请人 E.I. DU PONT DE NEMOURS AND COMPANY TE WILMINGTON, DELAWARE, VER. ST. V. AM. 发明人
分类号 G01N1/22;G01N1/40;G01N33/00;(IPC1-7):01N1/22;01N21/77 主分类号 G01N1/22
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