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1.1 This Standard applies to all types of laboratory fume hoods, except for ductless fume hoods. Note: Ductless fume hoods should not be considered acceptable substitutes for ducted fume hoods. Some jurisdictions prohibit use of ductless fume hoods with certain chemicals. For these reasons, ductless fume hoods have not been included in this Standard. 1.2 This Standard specifies a) safety…

1.1 This Standard applies to assemblies of resistors, enclosures, and other components that provide high impedance grounding for the purpose of controlling the ground fault current or the voltage to ground of an alternating current system, when installed in accordance with the Canadian Electrical Code, Part I. 1.2 This Standard applies to neutral grounding resistor assemblies rated for use on…

This part of IEC 61000, which is informative in its nature, provides guidance on principles that can be used as the basis for determining the requirements for the connection of disturbing installations to low voltage (LV) public power systems. For the purposes of this part of IEC 61000, a disturbing installation means an installation (which may be a load or a generator) that produces disturbances…

1.1 This Standard contains requirements for alarm initiating devices, supervisory detecting devices and accessories for automatic water supply control valves for attachment to water type extinguishing systems (such as, but not limited to wet, dry, pre-action and deluge type sprinklers, residential sprinklers, water mist suppression systems, water spray fixed extinguishing systems, water motors…

IEC 60335-2-90:2015 deals with<br /> - the safety of microwave ovens with a cavity door intended for commercial use, their rated voltage being not more than 250 V for single-phase appliances connected between one phase and neutral and 480 V for other appliances;<br /> - the safety of combination microwave ovens with a cavity door, the requirements for which are contained in Annex AA;…

IEC 60335-2-90:2015 deals with - the safety of microwave ovens with a cavity door intended for commercial use, their rated voltage being not more than 250 V for single-phase appliances connected between one phase and neutral and 480 V for other appliances; - the safety of combination microwave ovens with a cavity door, the requirements for which are contained in Annex AA; - the safety of…

ISO 18488:2015 specifies a method for the determination of the strain hardening modulus which is used as a measure for the resistance to slow crack growth of polyethylene. The strain hardening modulus is obtained from stress-strain curves on compression moulded samples. This International Standard describes how such measurement is performed and how the strain hardening modulus shall be determined…

IEC 62823:2015 defines routine and type tests on thyristor valves used in thyristor controlled series capacitor (TCSC) installations for a.c. power transmission. The tests specified in this standard are based on air insulated valves operating in capacitive boost mode or bypass mode.

ISO 11618:2015 applies to sealants used for pedestrian walkways, public areas, movement joints between concrete slabs, areas with pedestrian load, areas which are used with trolleys, parking garages, walkable floors, balconies, terraces, and warehouses. This International Standard specifies the types and classes of elastic sealants used in building construction pedestrian walkways according to…

ISO 13948-1:2015 specifies dimensions and requirements for mechanical, threaded connections used on diesel fuel injection pumps and fuel injectors for the connection of low-pressure fuel, lubrication oil or air supply. Five types of threaded connections (types A to E) are described in this part of ISO 13948. Type A is commonly used for both pumps and injectors, while types B to E are for diesel…