Free Standards Library

UL 551-2009 pdf download - Transformer-Type Arc-Welding Machines. 4 References 4.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that...

UL 565-2013 pdf download - Liquid-Level Gauges for Anhydrous Ammonia and LP-Gas. 4 Assembly 4.1 A gauge, when not assembled by the manufacturer as a unit, shall be arranged in as few subassemblies as practical; and shall...

UL 569-2013 pdf download - Pigtails and Flexible Hose Connectors for LP-Gas. 7 Materials for Flexible Hose Connectors 7.1 The hose used in the construction of a flexible hose connector shall be provided with a reinforced synthetic-rubber...

UL 580-2013 pdf download -Tests for Uplift Resistance of Roof Assemblies. 7.2 For a Class 1 5 rating, the test pressures shall not exceed the specified values by more than 0.2 inch of water (49.8 Pa) for...

UL 731-2009 pdf download - Oil-Fired Unit Heaters. 2.1 1 BURNER, MECHANICAL-ATOMIZING TYPE – A power-operated burner which prepares and delivers the oil and all or part of the air by mechanical process in controllable quantities for...

UL 781-2009 pdf download - Portable Electric Lighting Units for Use in Hazardous (Classified) Locations. 7.4 Class I, Zone 1, Group IIC 7.4.1 Explosion-proof electrical equipment intended to be marked in accordance with 40.21 shall comply with...

UL 875-2009 pdf download - Electric Dry-Bath Heaters. 3A.3 A component that is also intended to perform other functions, such as over-current protection, ground-fault circuit-interruption, surge suppression, any other similar functions, or any combination thereof, shall comply...

UL 982 2009 pdf download - Motor-Operated Household Food Preparing Machines. 5.1 2 FIXED APPLIANCE – An appliance that is fastened or otherwise secured at a specific location. 5.1 3 HAND-SUPPORTED APPLIANCE – An appliance that is...

UL 1037-2009 pdf download - Antitheft Alarms and Devices. 2.2 Units of measurement 2.2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 2.2.2 Unless otherwise indicated, all voltage and current...