A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Air gaps and backflow preventers in plumbing systems
Standard specification for air gaps in water distribution piping system, for plumbing fixtures, and for all water connected devices, which can be policed in field without complicated measurements or necessity of applying involved mathematical formulas; also recommended construction, installation, and performance requirements and tests of safe backflow preventers. (See also Am Standards Assn -- Am Standard A40.4-1942, A40.6-1943 14 p)
Air gaps and backflow preventers in plumbing systems
Standard specification for air gaps in water distribution piping system, for plumbing fixtures, and for all water connected devices, which can be policed in field without complicated measurements or necessity of applying involved mathematical formulas; also recommended construction, installation, and performance requirements and tests of safe backflow preventers. (See also Am Standards Assn -- Am Standard A40.4-1942, A40.6-1943 14 p)
Air gaps and backflow preventers in plumbing systems
Plumbing Heating J
1943
3 pages
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
INSTALLING BACKFLOW PREVENTERS
| Wiley | 1970
British Library Online Contents | 2001
Backflow Preventers on Class 1 and 2 Fire Protection Systems
| British Library Conference Proceedings | 1997
FLOOD DETECTION CONTROL DEVICE FOR REDUCED PRESSURE BACKFLOW PREVENTERS
| European Patent Office | 2023