BS 1254:1981 Specification for WC seats (plastics) standard by BSI Group, 04/30/1981
BS MA 93:1981 Code of practice for structural safety of deck machinery installation standard by BSI Group, 04/30/1981
BS 6065:1981 Methods for sampling and acceptance testing of shaped refractory products standard by BSI Group, 04/30/1981
BS 9493:1981 Rules for the preparation of detail specifications for integrated circuits of assessed quality which perform mixed digital and/or analogue functions standard by BSI Group, 04/15/1981
BS 3643-1:1981 ISO metric screw threads. Principles and basic data standard by BSI Group, 03/31/1981
BS 2795:1981 Specification for dial test indicators (lever type) for linear measurement standard by BSI Group, 03/31/1981
BS 3655:1981 Recommendations for informative labelling of textile floor coverings standard by BSI Group, 03/31/1981
BS 3134-3:1981 Metric tapered roller bearings. Specification for dimensions of flanged cups standard by BSI Group, 03/31/1981
BS 3134-2:1981 Metric tapered roller bearings. Specification for dimensions of double row bearings standard by BSI Group, 03/31/1981
BS CECC 30301 024:1981 Harmonized detail specification for fixed aluminium electrolytic capacitors (long-life grade). Non-solid electrolyte. Cylindrical, polar insulated metallic case, clamp or stud mounting screw terminations. Full plus additional assessment level standard by BSI Group, 03/15/1981
BS 6156:1981 Specification for low-frequency miniature equipment wires with solid or stranded conductor, fluorinated polyhydrocarbon type insulation, single standard by BSI Group, 10/30/1981
BS 6160-4:1981 Radio equipment used in mobile services. Transmitters employing single-sideband emissions (A3A, A3H or A3J) standard by BSI Group, 10/30/1981