A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
New plumbing standards to keep drinking water pure
Approval of American Standards on Air Gaps and Backflow Preventers in Plumbing Systems (A40.4-1942) and (A40.6-1943) provides nationally acceptable criterion for safe design and connection of water supply lines; many devices suggested.
New plumbing standards to keep drinking water pure
Approval of American Standards on Air Gaps and Backflow Preventers in Plumbing Systems (A40.4-1942) and (A40.6-1943) provides nationally acceptable criterion for safe design and connection of water supply lines; many devices suggested.
New plumbing standards to keep drinking water pure
Indus Standardization
Kalinske, A.A. (author) / Dawson, F.M. (author)
1943
3 pages
Article (Journal)
English
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