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ASSE 1035 2008

ASSE 1035 2008

$24.38

ASSE Standard #1035-2008 Performance Requirements for Laboratory Faucet Backflow Preventers

Published By Publication Date Number of Pages
ASSE 2008 24
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These devices are designed to protect the potable water supply from pollutants or contaminants that enter the system by backflow due to backsiphonage or backpressure. This standard applies only to devices classified as backflow preventers designed for installation on laboratory faucets on the discharge side of the last shut-off valve. They are not for use under constant pressure conditions. These devices consist of two independently acting check valves, force loaded or biased to a normally closed position and between the check valves a means for automatically venting to atmosphere, force loaded or biased normally open position.

PDF Catalog

PDF Pages PDF Title
9 Section I
1.0 General
1.1 Application
1.2 Scope
10 1.3 Reference Standards
11 Section II
2.0 Test Specimens
2.1 Samples Submitted for Test
2.2 Samples Tested
2.3 Drawings
2.4 Rejection
12 Section III
3.0 Performance Requirements and Compliance Testing
3.1 Hydrostatic Testing of Complete Device
Figure 1
13 3.2 Deterioration at Extremes of Manufacturer’s Temperature and Pressure Range
3.3 Back Pressure of Downstream Check
3.4 Tightness of Checks
14 3.5 Atmospheric Vent Valve Leakage
3.6 Backflow Through the Inlet Check
15 Figure 2
3.7 Backflow Through Outlet Check
3.8 Atmospheric Vent Valve Leakage
16 Figure 3
Figure 4
Figure 5
3.9 Back Siphonage Back Pressure
17 Figure 6
3.10 Flow and Pressure Loss
18 .
Section IV
4.0 Detailed Requirements
4.1 Materials
19 4.2 Markings
4.3 Installation and Mainenance Instructions
20 Section V
5.0 Definitions

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ASSE 1035 2008
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