BS

Aluminium coated aluminium alloy sheets and coils
standard by BSI Group, 05/31/1939

Specification for bars and extruded sections of magnesium-1 3/16% zinc-zirconium alloy (suitable for welding by inert-gas shielded arc techniques) (not exceeding 50 mm diameter or minor sectional dimension) (Zn 1.25, Zr 0.6)
standard by BSI Group, 03/15/1973

Specification for hexagonal bars for nuts, couplings and hollow machined parts of aluminium-copper-magnesium-silicon-manganese alloy (solution treated and precipitation treated) (free from peripheral and asymmetric coarse grain) (not less than 14 mm nor more than 36 mm across flats) (Cu 4.4, Mg 0.5,
standard by BSI Group, 08/31/1971

Specification for ingots and castings of aluminium-silicon-magnesium alloy (solution treated and precipitation treated) (Si 7, Mg 0.3)
standard by BSI Group, 03/30/1972