BS EN ISO 3821:2010

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Abbreviated terms
5 Application
6 Hose designation
7 Materials
8 Dimensions and tolerances
9 Requirements and type tests
10 Hose colour and gas identification
Annex A (normative) - Method of test for non-ignition
Annex B (normative) - Method of test for resistance to
        n-pentane
Annex C (normative) - Method of test for resistance to
        incandescent particles and hot surfaces
Annex D (normative) - Summary of requirements and type tests
Annex E (normative) - Alternative oxygen gas colour codes
Bibliography

Describes requirements for rubber hoses (including twin hoses) for welding, cutting and allied processes.

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.