一种量化建筑物送风污染的示踪剂方法：实验室通风柜排气的再夹带

A tracer method for quantifying contamination of building supply air: reentrainment of laboratory hood exhausts.

作者信息

Barnett J L, Richard M L, Rose V E

出版信息

Am Ind Hyg Assoc J. 1983 Aug;44(8):580-2. doi: 10.1080/15298668391405355.

Abstract

A method is described for quantifying the reentrainment of exhaust air contaminants into a building's fresh-air supply system. The method relies on the "tracer" gas, sulfur hexafluoride (SF6), which Is detected by infrared (IR) absorption analysis. This method of analysis differs from the conventional gas chromatography, electron capture detection method due to the MIRAN-1 A's portability, direct-reading capabilities, ease of operation and modest cost. Specific instrument settings for the MIRAN-1 A are given such that detection of SF6 will be optimized without interference. Calculations for quantifying reentrainment are presented and discussed for the "worst case" reentrainment observed.

摘要

本文描述了一种用于量化建筑新风供应系统中废气污染物再夹带量的方法。该方法依赖于“示踪”气体六氟化硫（SF6），通过红外（IR）吸收分析进行检测。这种分析方法与传统的气相色谱 - 电子捕获检测方法不同，因为MIRAN - 1A具有便携性、直读功能、操作简便且成本适中的特点。文中给出了MIRAN - 1A的具体仪器设置，以便在无干扰的情况下优化SF6的检测。针对观察到的“最坏情况”再夹带，给出并讨论了量化再夹带量的计算方法。