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| 1. |
Safety Precautions for Testing in Confined Spaces |
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Opflow,
Volume 13,
Issue 6,
1987,
Page 1-7
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PDF (1621KB)
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摘要:
This article discusses the hazards encountered while conducting tests in confined spaces. These hazards include insufficient natural ventilation, oxygen‐deficient environments, and the presence of toxic or flammable gases or vapors. Precautions are listed which will help water utility personnel detect and correct unsafe conditions in manholes and other confined spaces before the conditions become life‐threatening.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1987.tb01181.x
出版商:Wiley
年代:1987
数据来源: WILEY
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| 2. |
Simple Tool Makes Valve‐Box Repairs Easy |
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Opflow,
Volume 13,
Issue 6,
1987,
Page 7-7
Charles D. Foulkes,
Harold Row,
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PDF (792KB)
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摘要:
This article details the construction and cost of a valve‐box repair tool. In the case of a damaged valve‐box, this tool facilitates water turnoff at the valve‐box area.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1987.tb01182.x
出版商:Wiley
年代:1987
数据来源: WILEY
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