NF EN ISO 3821

NF EN ISO 3821

September 2019
Standard Current

Gas welding equipment - Rubber hoses for welding, cutting and allied processes

This document specifies requirements for rubber hoses (including twin hoses) for welding, cutting and allied processes.This document 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 document 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 document does not specify requirements for hose assemblies; these are detailed in ISO 8207.This document applies neither to thermoplastics hoses nor to hoses used for high pressure [>0,15 MPa (>1,5 bar)] acetylene.

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Main informations

Collections

National standards and national normative documents

Publication date

September 2019

Number of pages

29 p.

Reference

NF EN ISO 3821

ICS Codes

23.040.70   Hoses and hose assemblies
25.160.30   Welding equipment
83.140.40   Hoses

Classification index

T47-220

Print number

2 - 01/10/2021

International kinship

ISO 3821:2019

European kinship

EN ISO 3821:2019
Sumary
Gas welding equipment - Rubber hoses for welding, cutting and allied processes

This document specifies requirements for rubber hoses (including twin hoses) for welding, cutting and allied processes.

This document 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 document 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 document does not specify requirements for hose assemblies; these are detailed in ISO 8207.

This document applies neither to thermoplastics hoses nor to hoses used for high pressure [>0,15 MPa (>1,5 bar)] acetylene.

Replaced standards (1)
NF EN ISO 3821
June 2010
Standard Cancelled
Gas welding equipment - Rubber hoses for welding, cutting and allied processes

ISO 3821:2008 specifies requirements for rubber hoses (including twin hoses) for welding, cutting and allied processes. ISO 3821:2008 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]. ISO 3821:2008 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. ISO 3821:2008 applies neither to thermoplastics hoses nor to hoses used for high pressure [>0,15 MPa (>1,5 bar)] acetylene.

Standard replaced by (1)
NF EN ISO 3821
June 2010
Standard Cancelled
Gas welding equipment - Rubber hoses for welding, cutting and allied processes

ISO 3821:2008 specifies requirements for rubber hoses (including twin hoses) for welding, cutting and allied processes. ISO 3821:2008 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]. ISO 3821:2008 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. ISO 3821:2008 applies neither to thermoplastics hoses nor to hoses used for high pressure [>0,15 MPa (>1,5 bar)] acetylene.

Table of contents
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Termes abrégés
  • 5 Application
  • 6 Désignation du tuyau souple
  • 7 Matériaux
  • 8 Dimensions et tolérances
  • 9 Exigences et essais de type
  • 10 Couleur du tuyau souple et identification du gaz
  • Annexe A Méthode d'essai de non-inflammation
  • Annexe B Méthode d'essai de résistance au n-pentane
  • Annexe C Méthode d'essai de résistance aux particules incandescenteset aux surfaces chaudes
  • Annexe D Résumé des exigences et des essais pour la qualification du type
  • Annexe E Autres codes couleurs pour l'oxygène gazeux
  • Bibliographie
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