Rechercher

These requirements and methods of test apply to fire-damper assemblies rated 3/4 h, 1 h, 1-1/2 h, 2 h, or 3 h for use in air-conditioning and ventilating system ducts or openings (without ducts) piercing horizontally or vertically oriented fire separations where the fire separations are required to have a fire resistance rating of not more than 4 h.

S'applique aux matelas isolants constitués de fibres minérales pouvant être utilisés pour modifier tous les modèles standard de chauffe-eau électriques et de chauffe-eau au gaz naturel, au propane et au mazout présentant une capacité nominale comprise entre 115 et 270 L.

Provides a format and recording standard for 9-track, 12,7 (0,5 in) wide magnetic tape and reels to be used for information interchange among information processing systems, communication systems, and associated equipment utilizing the 7-bit coded character set specified in ISO 646 or its 7-bit or 8-bit extensions specified in ISO 2022. References: ISO 962; 1001; 1864.

Provides a format and recording standard for 9-track, 12,7 (0,5 in) wide magnetic tape and reels to be used for information interchange among information processing systems, communication systems, and associated equipment utilizing the 7-bit coded character set specified in ISO 646 or its 7-bit or 8-bit extensions specified in ISO 2022. References: ISO 962; 1001; 1864.

This standard specifies general and safety requirements for electronic ballasts for use on d.c. supplies, having rated voltages not exceeding 250 V, associated with fluorescent lamps complying with IEC 81. This standard also specifies electronic ballasts for lamps which are not yet standardized. lt does not specify independent ballasts. Supersedes IEC 60458.

A cotton disc of known nature and characteristics, held in a grip, is immersed in a solution of surface active agent of known concentration. After displacement of air an penetration of the solution into the cloth, the cotton disc starts to sink. The wetting time is determined by measurement the interval between the moment of immersion of the cotton disc and the moment when it begins to sink. The…

1. SCOPE 1.1 This standard applies to cotton sewing thread, unbleached, bleached or dyed, treated or untreated, for use in high-speed sewing machines. 1.2 This standard may require the use of materials and/or equipment that could be hazardous. This document does not purport to address all the safety aspects associated with its use. Anyone using this standard has the responsibility to consult…

This User Selection Guide is designed to accompany CSA Standard A440, Windows, to assist specifiers, manufacturers, and general users. Clause numbers in this Publication correspond to the appropriate Clauses in CSA Standard A440.

Sets forth requirements for flexible underground hose connectors intended for flammable and combustible liquid service at temperatures within the range of -40 degrees C to +50 degrees C.

These requirements cover leakage rated dampers intended for use in heating, ventilating and air conditioning (HVAC) systems. Leakage rated dampers are intended to restrict the spread of smoke in HVAC systems that are designed to be automatically shut down in the event of a fire or to control the movement of smoke within a building when the HVAC system is operational in engineered smoke…