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Standard

ISO 3821:2019

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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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  • Standard da ISO
  • Pubblicato:
  • Edizione: 5
  • Tipo di documento: IS
  • Pagine
  • Publisher ISO
  • Distributor ISO
  • ICS 25.160.30
  • ICS 83.140.40
  • International TC ISO/TC 44/SC 8

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