Gases encountered in the environment may be harmless, toxic or flammable. Leakage of gases, therefore, may have potentially serious implications for all of us and, in particular, for certain high-risk employees. Where there is a likelihood of hazardous atmospheres, occupational safety legislation requires that employers either supply appropriate breathing apparatus or ensure that the air is safe to breathe. It is for this reason, if no other, that it is necessary to measure the concentrations of potentially hazardous mixtures in a continuous or periodic manner. From the point of view of personnel safety, it is often more important to know that a toxic or flammable gas has leaked into the environment than to be capable of making a precise measurement of very small concentrations of gas.
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- Gas sensors and analysers
J. R. Bates
- Springer Netherlands
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