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1. Scope 1.1 This Standard establishes voltage standards for AC Systems in Canada to provide a guide: (a) To national committees on utilization and control equipment or devices for establishing standard ratings of such equipment or devices on a bas

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1. Scope 1.1 This Standard provides a procedure to predict the sound level received at a distance from an industrial plant that is due to sound from the plant. Notes: (1) It is envisaged that this method will be used to predict sound levels (Leq,

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1. Scope 1.1 This Recommended Practice describes a procedure for the prediction of sound pressure levels in a large room containing a number of sound sources. This procedure may be used to compute A-weighted, octave, or fractional octave band sound pr

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