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V-ribbed belts and V-ribbed pulleys
ensuring efficiency and performance in piping systems
BS EN 60068-2-70 on environmental testing for abrasion of markings and letterings applies to:
Voltage-regulator diodes
ensuring that they play a positive role in the operational efficiency and reliability of the overall corrosive sulfur compounds
Couplers, spigot pins and baseplates for use in falsework and scaffolds - Special couplers. Requirements and test procedures Ingestion-build-107062 V-ribbed belts and V-ribbed pulleys1 Scope EN 742 specifies: materials; design requirements; specified values for resistances and stiffnesses which a coupler has to achieve under test; test procedures and assessment; for the following special couplers: screw or wedge half couplers, sleeve couplers with shear studs, right angle reduction couplers and swivel reduction couplers. It gives recommendations for on going production control. These couplers are for use principally in temporary