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This International Standard specifies equipment and a method for using nitric acid vapour to determine porosity in gold coatings, particularly electrodeposits and clad metals used on electrical contacts. This method is designed to show whether the porosity level is less than or greater than some value that, by experience, is considered by the user to be acceptable for the intended application. It…

1 Scope This International Standard specifies the 34-pole connector and the assignment of contact numbers at the interface between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) where CCITT¹) Recommendation V.35 or Recommendation X.21bis together with Recommendation V.10 and V.11 are applicable. NOTE 1 An interoperation between interfaces designed according…

1 Scope 1.1 This Standard specifies the requirements for insulating tubing that is usually round in cross-section and that consists entirely of extruded compounds whose characteristic constituents are thermosetting, elastomeric, or thermoplastic polymers (see Table 1 for materials and ratings). These requirements also cover heat-shrinkable and cross-linked tubing. 1.2 Tubing is…

This National Standard of Canada is equivalent to International Standard CEI/IEC 61236: 1993. 1.1 Scope This International Standard is applicable to saddles and pole clamps (stick clamps) used for live working, and to their accessories. It specifies: - the dimensional and mechanical characteristics to be given by the manufacturer for each tool; - the…

1. Scope This international Standard is applicable to saddles and pole clamps (stick clamps) used for live working and to their accessories. It specifies: - the dimensional and mechanical characteristics to be given by the manufacturer for each tool; - the corresponding mechanical tests; - the other points to be checked (visual, functional, marking, etc.).

This International Standard specifies a colorimetric comparison method for the determination of the amount of ammonia and ammonium compounds in phenol-formaldehyde mouldings. NOTE This International Standard does not provide an absolute measure of the amount of ammonia present. The amount of ammonia in a moulded article is of importance when corrosion of metal inserts or contamination of…

This International Standard specifies the 8-contact connector (plug and jack) and the assignments of its contact numbers for use in the physical interfaces of Integrated Services Digital Network (ISDN) primary rate access services conforming to ITU-T Recommendation I.431. In this International Standard, as in ITU-T Recommendation I.431, the term "NT" is used to indicate the network…

This International Standard specifies the 8-contact connector (plug and jack) and the assignments of its contact numbers for use in the physical interfaces of Integrated Services Digital Network (ISDN) primary rate access services conforming to ITU-T Recommendation I.431. In this International Standard, as in ITU-T Recommendation I.431, the term "NT" is used to indicate the network…

1.1 Scope This Standard applies to the safety of tungsten filament lamps intended for use in lighting equipment, designed to be installed on branch circuits not exceeding 750 V and used in accordance with the rules of the Canadien Electrical Code (CEC), Part I. Note: Manufacturers designing products for use in Canada may find a helpful summary of the equipment-related requirements of…

This National Standard of Canada is based on International Standard CEI/IEC 1008-1: 1990, (first edition, 1990-12), with Corrigendum 1990 and Amendments 1:1992 and 2:1995. 1. Scope This International Standard applies to residual current operated circuit-breakers functionally independent of, or functionally dependent on, line voltage, for household and similar uses, not incorporating…