Specifies requirements (composition, mechanical properties, dimensional tolerances, limiting bend radii) and test procedures for the following materials in the following size ranges: tube for general purpose: cold worked - outside diameter 4 mm to 240 mm, hot worked - outside diameter 38 mm to 240 mm; tube for condenser and heat-exchanger applications: cold worked - maximum outside diameter 80 mm with wall thickness up to and including 5 mm. Annex A lists ISO methodsof analysis.