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UL 448-2020 pdf download - Centrifugal Stationary Pumps for Fire- Protection Service. 1 Scope 1.1 These requirements cover stationary centrifugal fire pumps intended for use in water-supply systems for fire-protection service. 1.2 The pumps covered by these...

UL 444-2021 pdf download - Communications Cables. 1 Scope 1.1 This standard applies to 60 – 250°C single- or multiple-conductor jacketed or unjacketed, integral or nonintegral cables and single or multiple coaxial cables for telephone and other...

UL 399-2020 pdf download - Drinking Water Coolers. 5.4 *ADJUSTABLE SPEED DRIVE SYSTEM – An interconnected combination of equipment that provides a means of adjusting the speed of a mechanical load coupled to a motor. A drive...

UL 330-2021 pdf download - Hose and Hose Assemblies for Dispensing Flammable and Combustible Liquids. 8.4 A protective coating shall provide resistance against corrosion to a degree not less than that provided by the protective coatings specified...

UL 199-2020 pdf download - Automatic Sprinklers for Fire-Protection Service. 5.28 RECESSED CEILING SPRINKLER – A sprinkler assembly in which all or part of the sprinkler body or frame, other than the inlet thread, is mounted within...

UL 144-2021 pdf download - LP-Gas Regulators. 6.6 OVERPRESSURE SHUTOFF (OPSO) FEATURE – A feature that shuts off the flow of LP-Gas vapor when the outlet pressure of the regulator reaches a predetermined maximum pressure. 6.7 REGULATOR:...

UL 132-2021 pdf download - Safety Relief Valves for Anhydrous Ammonia and LP-Gas. 13 General 13.1 Representative samples of a pressure-relief valve shall be subjected to the tests described in these requirements. Additional samples of internal parts,...

UL 109 2020 pdf download - Tube Fittings for Flammable and Combustible Fluids, Refrigeration Service, and Marine Use. 5.2 A Marine-Use fitting and component part shall have less than 38 percent zinc content or include inhibitors to...

UL 67-2020 pdf download - Panelboards. 3 Units of Measurement 3.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 4 Undated References 4.1 Any undated reference to a code or...