ISO 8449:1995

Pipework — Single overlap flexible metal hoses (with packing, limited tightness, circular or polygonal section, in protected carbon steel)

Specifies the diameters of the flexible metal hoses in accordance with ISO 7657 and tested in accordance with ISO 7658 without external coating (as defined in ISO 7369:1983, 4.1.10), used under low pressure, with permissible leakage, at temperatures between – 20 °C and a maximum of 230 °C. The packing should not be asbestos. Suitable materials include cotton, fibre-glass, nylon, Kevlar, polyamide, polyester, etc.