ISO 3821:2008 气焊设备 焊接、切割及相关工艺用橡胶软管

标准编号：ISO 3821:2008

中文名称：气焊设备 焊接、切割及相关工艺用橡胶软管

英文名称：Gas welding equipment — Rubber hoses for welding, cutting and allied processes

发布日期：2008-10

标准范围

ISO 3821:2008规定了焊接、切割和相关工艺用橡胶软管（包括双软管）的要求。ISO 3821:2008规定了正常工作压力为2 MPa（20 bar）和轻型橡胶软管的要求[限于最大工作压力为1 MPa（10 bar）且孔径小于等于6.3 mm的软管]。ISO 3821:2008适用于在-20°C至+60°C温度下操作的软管，用于:气焊和切割；惰性气体或活性气体保护下的电弧焊；与焊接和切割相关的工艺，尤其是加热、钎焊和金属化。ISO 3821:2008既不适用于热塑性塑料软管，也不适用于用于高压[>；0.15 MPa（>；1.5 bar）]乙炔的软管。

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.

标准预览图