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ASTM D622

Standard test methods for the rubber hose for the car’s air brake and vacuum system:
These test standards are used to test the conventional types of hoses used for the operation of air brakes and vacuum braking systems, either in a single motor vehicle or as connection or transmission lines in a combination of vehicles. The hose can be assembled with suitable metal couplings or it can be manufactured for use with detachable accessories. The term “rubber” as used in these test methods includes synthetic compounds as well as natural rubber compounds.

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