Rechercher

1. Scope 1.1 This Standard describes a procedure for the measurement of A-weighted sound levels in and around industrial, institutional, or commercial sites. 1.2 This Standard applies to the measurement of sounds that are essentially non-impulsive in nature. 1.3 This Standard may be used to determine: (a) Those operating areas where permitted sound levels are exceeded; (…

1. Scope 1.1 This Standard sets forth the requirements for the construction, test, and operation of permanently or cord-connected 120 V ac detertors and 12 V dc deterctors, intended for use in the home and in recreational vehicles, for the detection of fuel gases (natural gas, methane, and propane), in accordance with the Canadian Electrical Code, Part I. No other function is implied or…

1.1 Scope 1.1.1 This standard applies to propane and natural gas-fired unattended portable type infra-red heaters (see Definitions, Part III), hereinafter referred to as heaters with gas inputs up to and including 400 000 Btuh (117.23 kW). 1.1.2 The standard applies to portable unvented infra-red heaters used primarily for temporary heating purposes. 1.1.3 Portable type…

Establishes a general system for designating the intensity, quantity and size of common types of defects and outlines the basic principles of the system in respect of designation of the intensity, quantity and size of defects. A uniform convention has been adopted for designating the intensity and quantity of defects: "o" denoting no defects, and "5" denoting defects so severe…

This document provides pictorial standards for designating the degree of blistering. The principle of the method consists in rating the density and size of the blisters by means of the pictorial standards. The photographic reference standards have been adopted from ASTM D 714-56. Replaces and cancels section two of ISO 4628/1-1978.

This document provides pictorial standards for designating the degree of rusting. The standards given are basically indended for rating on coated steel. They may used for designating the degree of corrosion of non-ferrous metals if the form of breakdown is comparable with that on the standards. Cancels and replaces section three of ISO 4628/1-1978.

Provides pictorial standards for designating. The quantity of cracking is rated by reference to table 2 of ISO 4628/1 and using as examples figures 1 or 2, depending on the type of cracking. The average size of the cracks is designated according to the classification.