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1.1 General 1.1.1 Applies to occupational diving operations conducted in connection with all types of work and employment, and describes the requirements for occupational safety. Note: It is recognized that certain underwater tasks may require specialized standards of practice and/or operational techniques which differ from the requirements of this Standard yet may be acceptable to the…

1.1 Specifies the requirements for zinc coating (galvanizing) by the hot-dipping process on iron and steel products made from rolled, pressed, or forged shapes such as structural sections, plates, bars, pipes, or sheets 1 mm thick and thicker. 1.2 This Standard applies to both unfabricated and fabricated products such as assembled steel products, structural steel fabrications, large…

This Code covers all electrical work and electrical equipment operating or intended to operate at all voltages in electrical installations for buildings, structures, and premises, including factory-built relocatable and non-relocatable structures, with the following exceptions: (a) Installations or equipment employed by an electric or communication utility in the exercise of its…

This National Standard of Canada is based on International Standard ISO 3450:1985. This International Standard specifies minimum performances and test criteria for braking systems to enable uniform assessment of the braking capability of earth-moving machinery which operates on work sites or travels on public roads. Service, secondary and parking braking systems and retarders are covered…

This National Standard of Canada is equivalent to International Standard ISo 4073:1980. This International Standard lays down a reference plan for the location of the items, it gives symbols for the items and a two-digit system for the identification of the combination of items which are used at the working place of the dental team where examination, treatment and other clinical procedures…

1.1 Pertains to nonreinforced circular concrete pipe and fittings intended to be used for the conveyance of sewage, industrial wastes, storm water, and for the construction of culverts. Note: This Standard is applicable to manufacture and purchase only. 1.2 This Standard establishes the following three strength classifications of nonreinforced concrete pipe and gives their physical…

1.1 Pertains to reinforced circular concrete pipe and fittings intended to be used for the conveyance of sewage, industrial wastes, and storm water, and for the construction of culverts. Note: This Standard is applicable to manufacture and purchase only. 1.2 This Standard pertains to pipe that is intended to be used for jacking longitudinally in tunnel operations. Note: Such pipe may…

1.1 Pertains to precast reinforced circular concrete manhole sections including base sections, riser sections, catch basins, and appurtenances such as grade rings, tops, and special sections for use in sewer and water works. Note: This Standard is applicable to manufacture and purchase only, not installation. 1.2 The requirements of this Standard are applicable to precast concentric…

1. Scope A257.0 1.1 This Standard describes procedures for testing circular concrete pipe, manhole sections, and joints and includes the following tests: (a) three-edge bearing test (see Clause 3); (b) core strength test (see Clause 4); (c) absorption test (see Clause 5); (d) hydrostatic test (see Clause 6); (e) flat slab top test (see Clause 7);and (f) manhole step test (see…

This Standard gives a group of common requirements that apply, unless otherwise specified in a purchase order or in an individual Standard, to structural quality steel plates, shapes, hollow sections, sheet piling, cold-formed channels, and bars conforming to the requirements of CSA Standard CAN/CSA-G40.21.