BS 4140-21:1980 Methods of test for aluminium oxide. Particle size analysis standard by BSI Group, 04/30/1980
BS 4140-22:1980 Methods of test for aluminium oxide. Determination of manganese content standard by BSI Group, 04/30/1980
BS 3283-1:1980 Non-reversible connectors and appliance inlets for portable electrical appliances (for circuits up to 250 V). Specification for 13 A connector and appliance inlet standard by BSI Group, 04/30/1980
BS 4140-6:1980 Methods of test for aluminium oxide. Determination of titanium content standard by BSI Group, 04/30/1980
BS 1052:1980 Specification for mild steel wire for general engineering purposes standard by BSI Group, 04/30/1980
BS 2598-4:1980 Glass plant, pipeline and fittings. Specification for glass plant components standard by BSI Group, 04/30/1980
BS 4203-1:1980 Extruded rigid PVC corrugated sheeting. Specification for performance requirements standard by BSI Group, 04/30/1980
BS 4203-2:1980 Extruded rigid PVC corrugated sheeting. Specification for profiles and dimensions standard by BSI Group, 04/30/1980
BS 4656-25:1980 Accuracy of machine tools and methods of test. Gear planing machines standard by BSI Group, 04/30/1980
BS 5909:1980 Method for scale adhesion test for oxygen-free copper standard by BSI Group, 04/30/1980
BS 5853:1980 Specification for medicine trolleys standard by BSI Group, 04/30/1980
BS CECC 90103:1980 Specification for harmonized system of quality assessment for electronic components. Family specification: digital integrated TTL low power SCHOTTKY circuits, series 54LS, 64LS, 74LS, 84LS standard by BSI Group, 04/15/1980