ISO 3821 4th Edition, October 15, 2008
Gas welding equipment — Rubber hoses for welding, cutting and allied processes
Additional Comments: ENGLISH * SEE ALSO ISO DIS 3821
Published By:International Organization for Standardization (ISO)
This International Standard specifies requirements for rubber hoses (including twin hoses) for welding, cutting and allied processes.
This International Standard specifies requirements for rubber hoses for normal duty of 2 MPa (20 bar) and light duty [limited to hoses for maximum working pressure of 1 MPa (10 bar) and with bore up to and including 6,3 mm].
This International Standard applies to hoses operated at temperatures -20 °C to +60 °C and used in:
— gas welding and cutting;
— arc welding under the protection of an inert or active gas;
— processes allied to welding and cutting, in particular, heating, brazing, and metallization.
This International Standard applies neither to thermoplastics hoses nor to hoses used for high pressure [>0,15 MPa (>1,5 bar)] acetylene.