ONTARIO, CA — The International Association of Plumbing and Mechanical Officials (IAPMO ®) has published IAPMO/UPC/Appendix H-2021, Private Sewage Disposal Systems, as a standalone document. This ...
IN view of the numerous text-books dealing with the purification of sewage which have recently appeared it would seem difficult to justify the publication of a further work on the subject. During the ...
Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...
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