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ASSE 1035

Performance Requirements for Laboratory Faucet Backflow Preventers

active, Most Current
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Organization: ASSE
Publication Date: 1 July 2020
Status: active
Page Count: 24
scope:

Description

This standard applies only to those devices classified as backflow preventers that are designed for installation on laboratory faucets on the discharge side of the last shut-off valve. These devices 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 to normally open position.

Working Pressure

Devices shall be designed to operate within a working pressure of 0.0 psi (0.0 kPa) to a minimum of 125.0 psi (861.9 kPa).

Temperature Range

The devices shall be designed for a temperature range that includes 33.0 °F to 180.0 °F (0.6 °C to 82.2 °C).

Atmospheric Vent

a. The atmospheric vent shall be constructed so that it will open when the supply pressure is atmospheric or below.

b. The atmospheric vent shall be constructed so that under a backpressure condition it will open.

c. The atmospheric vent shall be constructed to provide vacuum breaking ability.

Repairability

a. The internal parts of the device shall be accessible for inspection, repairs or replacements.

b. All replaceable parts of the device of the same size and model shall be interchangeable with the original parts.

Document History

ASSE 1035
July 1, 2020
Performance Requirements for Laboratory Faucet Backflow Preventers
Description This standard applies only to those devices classified as backflow preventers that are designed for installation on laboratory faucets on the discharge side of the last shut-off valve....
April 1, 2008
Performance Requirements for Laboratory Faucet Backflow Preventers
A description is not available for this item.
April 1, 2008
Performance Requirements for Laboratory Faucet Backflow Preventers
Description This standard applies only to those devices classified as backflow preventers that are designed for installation on laboratory faucets on the discharge side of the last shut-off valve....
January 1, 2008
Performance Requirements for Laboratory Faucet Backflow Preventers
A description is not available for this item.
September 1, 2002
Performance Requirements for Laboratory Faucet Backflow Preventers
A description is not available for this item.
December 1, 1993
Performance Requirements for Laboratory Faucet Backflow Preventers
A description is not available for this item.
January 1, 1993
Performance Requirements for Laboratory Faucet Backflow Preventers
A description is not available for this item.

References

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