UL 565

Liquid-Level Gauges and Indicators for Anhydrous Ammonia and LP-Gas

UL 565

Scope

1.1 These requirements cover liquid-level gauges and indicators for anhydrous ammonia and liquefied petroleum gas (LP-Gas) for use with pressure vessels in nonrefrigerated systems in installations covered by the following American National Standards and others:

Storage and Handling of Anhydrous Ammonia, ANSI K61.1.

Liquefied Petroleum Gas Code, NFPA 58.

Storage and Handling of Liquefied Petroleum Gases at Utility Plants, ANSI/NFPA 59.

1.2 A product that contains features, characteristics, components, materials, or systems new or different from those covered by the requirements in this standard, and that involves a risk of fire or of electric shock or injury to persons shall be evaluated using appropriate additional component and end-product requirements to maintain the level of safety as originally anticipated by the intent of this standard. A product whose features, characteristics, components, materials, or systems conflict with specific requirements or provisions of this standard does not comply with this standard. Revision of requirements shall be proposed and adopted in conformance with the methods employed for development, revision, and implementation of this standard.

1.2 revised June 1, 2001