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Covers backflow preventers of the dual check valve type (with intermediate vent) in nominal pipe sizes of 1/4 and 3/8 only. They are designed to be used on low to moderate hazard connections. These devices are suitable for use under continuous or intermittent pressure and are designed to be used on individual outlets or appliances with flow rates of 0.25 L/s (3.3 CGPM) or less. Inlet or…

1. Scope 1.1 This Standard applies to low-pressure connecting assemblies for medical gas systems in any health care facility. 1.2 This Standard contains two parts as follows: (a) Part I contains requirements relating to the construction, performance, and identification of low-pressure connecting assemblies (see Clauses 3 through 6); and (b) Part II contains requirements relating…

Refers to the terms and definitions given in ISO 4474. The following six groups are listed in a table in connection with their subgroups and varieties: Knots, shakes, defects of trunk shape, defects of wood structure, defects caused by fungi and damage.

1. Scope 1.1 This Standard applies to solid-state lighting controls rated at 600 V and less, with or without an integral switching (disconnecting) device, designed to be used in circuits (a) for the control of incandescent lamps; and (b) for the control of fluorescent, HID, ballasted, and similar lamps intended for installation in accordance with the Rules of the Canadian Electrical Code,…

1. Scope 1.1 This Standard applies to switching and metering centres (hereafter may be referred to for convenience as metering centres or centres) rated 600 V and less, intended to be used in accordance with the Rules of the Canadian Electrical Code, Part I, in nonhazardous locations, to provide switching, overcurrent protection and metering for a number of circuits supplied from a consumer…

This National Standard of Canada is identical in content and in layout with International Standard ISO 8878-1987. 1. Scope and field of application The OSI CONS, as stated above, is defined in terms of a set of primitive actions and events and associated parameters. For a protocol to support this service, there must be a mapping between the abstract primitives and parameters of the…

Lays down the minimum performance requirements for the high fidelity sound output of television tuners with or without vision reception facilities, designed for the reception of television emissions according to CCIR systems B, G, H, I, and M, for mono, stereo or dual sound emissions, and primarily intended for high-quality sound reproducing systems for home use. Applies to any equipment…

Applicable to inductors for radio interference suppression intended for apparatus and machines to be connected to a supply with a nominal voltage not exceeding 500 V between conductors or 250 V between any one conductor and earth and a frequency not exceeding 100 Hz. The combination of two or more inductors within one enclosure is also included in the scope of this standard.

Applicable to complete filter units for radio interference suppression intended for apparatus and machines to be connected to a supply with a nominal voltage not exceeding 500 V between conductors, or 250 V between any one conductor and earth, and a frequency not exceeding 100 Hz. The combination of two or more filters within one enclosure is also included in the scope of this standard.

Gives the limits of interference as well as a classification of suppression components. Shows a choice of ratings for specific applications. Deals with the connection of suppression components as well as with safety aspects. The contents of the corrigendum of January 1998 have been included in this copy.