Belt drives. Grooved pulleys for V-belts (system based on effective width). Geometrical inspection of grooves1 Scope This International Standard specifies the methods of checking the regularity of the grooves and pulleys for V belts specified in the system based on effective width. The grooved pulleys can be designed for use with classical or narrow V belts. The V belts can be either single or joined units. It is intended to specify the inspection parameters and tolerances of grooved pulleys in future International Standards.

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This standard is intended to ensure the safety of installed UPS

BS EN 953:1997 specifies the general requirements for the design and construction of both fixed and removable machine guards that protect persons from mechanical hazards

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it gives recommendations and explanatory guidance for in situ leak testing of high-efficiency filters using an oil aerosol challenge and photometer

The question of interchangeability is dealt with in Annex A (see Clause A

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What is PD CEN/TS 17201 – Construction products about

BS EN 60721-2-9 is a standard that covers the measurement of shock and vibration data

as well as the drive to add insulation to walls

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