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ISO 3821:2019

Gas welding equipment -- Rubber hoses for welding, cutting and allied processes (Corrected version 2021-05)

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Kehtiv alates 29.07.2019
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Standardi ajalugu
Staatus
Kuupäev
Tüüp
Nimetus
29.07.2019
Põhitekst
02.10.2008
Põhitekst
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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