PERFORMANCE REQUIREMENTS FOR BACKFLOW PROTECTION DEVICES AND SYSTEMS IN PLUMBING FIXTURE FITTINGS
American Society of Mechanical Engineers
A112 Dedication
Foreword
Committee Roster
Correspondence With the A112 Committee
1 Purpose
2 Scope
3 Reference Standards
4 Definitions
5 Application of Backflow Prevention
Devices
6 General Requirements for Backflow
Prevention Devices
7 Evaluation of Backflow Prevention Devices
8 Fixture Fittings With Internal Devices
Complying With Paras. 6 and 7
9 Fixture Fittings With Internal Devices
Not Complying With Para. 7
10 Test Methods and Performance Criteria
11 Functional Test of Backflow Prevention
Devices
12 Functional Test of Backflow Prevention
Systems
13 Independence of Devices
14 Leakage of Protection Systems With Atmospheric
Vents
15 Durability Tests
16 Verification of the Critical Level [Hose Connected
Movable Outlet Faucets With Atmospheric Vents, Paras.
8.1.1(b), (c), and (d)]
Nonmandatory Appendix
A - Rationale for Sampling Scheme and Statistical Procedures
Describes functional performance and requires physical characteristics of devices and systems which provide backflow protection consistent with the level of risk associated with the plumbing fixture fitting application.
| Document Type | Standard |
| Status | Current |
| Publisher | American Society of Mechanical Engineers |
| ProductNote | Reconfirmed 2012 |
