- Author
-
Grainger, S.
- Title
- Backflow Prevention.
- Journal
-
Sprinkler Age,
Vol. 15,
No. 6,
22-24,26,
June 1996
- Keywords
-
sprinkler systems
- Identifiers
- controversial questions about its necessity in fire sprinkler systems; backflow devices on Class 1 and Class 2 fire systems