Standards World

UL-2043:2013 pdf free download - STANDARD FOR SAFETY Fire Test for Heat and Visible Smoke Release for Discrete Products and Their Accessories Installed in Air-Handling Spaces. 4.2.2 Carbon dioxide and carbon monoxide analyzer 4.2.2.1 If used in...

UL-1990:2013 pdf free download - STANDARD FOR SAFETY Nonmetallic Underground Conduit with Conductors. 9 Identification of Compounds 9.1 An HDPE material used in conduit shall be subjected to the Infrared Spectroscopy (IR), Thermogravimetry (TGA), and Differential Scanning...

UL-1989:2013 pdf free download - STANDARD FOR SAFETY Standby Batteries. 7.6 Test for flame propagation 7.6.1 After the test described in 7.5.2 for sustained burning, one of each of the conditioned vent caps is to be installed...

UL-1917:2013 pdf free download - STANDARD FOR SAFETY Solid-State Fan Speed Controls. b) Securing such parts and insulating them from the mounting surface by a barrier, or the equivalent, or by through air or over surface spacings...

UL-1897:2015 pdf free download - STANDARD FOR SAFETY Uplift Tests for Roof Covering Systems. 6.4 Repairs or modifications, except to stop air leakage along the periphery, are not to be made to the assembly during the test....

UL-1821:2015 pdf free download - STANDARD FOR SAFETY Thermoplastic Sprinkler Pipe and Fittings for Fire Protection Service. 13.5 Fire exposure test- vertical piping application 13.5.1 Piping assemblies intended for installation as a vertical supply (riser) without protective...

UL-1784:2015 pdf free download - STANDARD FOR SAFETY Air Leakage Tests of Door Assemblies and Other Opening Protectives. 5.3.4 The air supply opening into the chamber is to be arranged so that air does not impinge directly...

UL-1767:2013 pdf free download - STANDARD FOR SAFETY Early-Suppression Fast-Response Sprinklers. 25.3 The assembly is to be immersed in water and orientated so that air bubbles indicating leakage past the extension nipple and inlet seal assembly connection...

UL-1696:2015 pdf free download - STANDARD FOR SAFETY Mechanical Protection Tubing (MPT) and Fittings. 6.2 Conditioning 6.2.1 Nonmetallic and composite MPT, fittings and clamps shall be conditioned for not less than 24 h at 23 ±2°C (73...

UL-1694:2015 pdf free download - STANDARD FOR SAFETY Tests for Flammability of Small Polymeric Component Materials. 6.2 Test specimens 6.2.1 If possible, the specimen should be a complete component or sub-assembly. If it is necessary to cut...