Transcription of The selection and use of flammable gas detectors
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The selection and use of flammable gas detectors
Health and Safety Executive The selection and use of flammable gas detectors INTRODUCTION 1 This guidance has been produced by the Health and Safety Executive. It provides advice and information on the selection , installation, use and maintenance of industrial flammable gas detectors . It is aimed at process engineers and managers and others concerned with the use of flammable gas detectors . It is not intended for specialist instrument engineers or those seeking detailed technical information. It does not apply to the mining and offshore industries. 2 This document does not cover toxic gas detectors or detectors used in the home. It does not cover the use of personal monitoring equipment worn to determine exposure to toxic substances and there is no detailed advice on working in confined spaces. 3 For the purposes of this guidance note, the word gas will be used to cover vapours as well as permanent gases.
The sensors are located at or near points where there is the possibility of a gas release. 15 However, natural diffusion as a sampling method can be slow. In many cases a faster response is needed, and the sample is transported to the sensor using a sampling pump. This is called aspirated or extractive sampling.
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