scope:

This Part of this British Standard specifies requirements for copper tubes in the following four different conditions:

(1) Annealed copper tubes supplied in coils, suitable for connection by means of compression fittings and capillary fittings for use in micro-bore or mini-bore heating systems.

(2) Half hard copper tubes supplied in straight lengths, suitable for connection by means of compression fittings and capillary fittings or by silver brazing or by suitable methods of welding, designated.

(3) Half hard copper tubes in straight lengths and annealed copper tubes in coils suitable for burying underground and for connection by means of compression fittings and capillary fittings or by silver brazing or by bronze or autogenous welding, designated.

(4) Hard drawn copper tubes supplied in straight lengths suitable for connection by means of capillary fittings or non-manipulative type compression fittings (Gpe A specified in BS 864, Part 2). (These tubes are not recommended for bending.)