This Standard specifies requirements for rubber hoses (including twin hoses) for welding, cutting and allied processes.
The term “allied processes” means, in particular, heating, brazing and metallization.
This Standard specifies requirements for rubber hoses for normal duty up to 2 MPa (20 bar) and light duty [limited to hoses for maximum working pressure up to 1 MPa (10 bar) and with nominal bore less than or equal to 6.3 mm].
This Standard pertains to hoses operated at temperatures - 20 ℃ to + 60 ℃.
Plastic hoses are excluded from this Standard.
Different colours and markings are specified for identification of the gas.
Note 1: If hoses for liquefied petrol gases are used without regulators the use of light duty hoses is not allowed.
Note 2: In the case of hoses for use with liquid flux dispensers fitted in the fuel gas supply line, the manufacturer should be consulted on the suitability of the hose for this application.
This Standard applies to hoses used in:
— Gas welding and cutting;
— Arc welding under the protection of an inert or active gas;
— Processes allied to welding and cutting.
This Standard does not apply to hoses used for high pressure acetylene [more than 0.15 MPa (1.5 bar)].
