BS 2051-2 – Tube and pipe fittings for engineering purposes. Specification for olive type copper alloy compression tube fittings
Specifies olive type fittings for use with copper, copper alloy, aluminium alloy, rolled and coated steel tubing. Applies to Type A fittings defined in Part 1 in the size range 3 mm to 22 mm and 3 to 12 mm for external and internal types respectively.