BS 5000-3:1980 Specification for rotating electrical machines of particular types or for particular applications. Generators to be driven by reciprocating internal combustion engines standard by BSI Group, 12/31/1980
BS 5942-4:1981 High fidelity audio equipment and systems; minimum performance requirements. Specification for magnetic recording and reproducing equipment standard by BSI Group, 12/31/1980
BS 6049-1:1981 Methods of test for tea. Preparation of ground sample of known dry matter content standard by BSI Group, 12/31/1980
BS 6049-2:1981 Methods of test for tea. Determination of loss in mass at 103 degreesC standard by BSI Group, 12/31/1980
BS 5999:1980 Specification for serials holdings statements for libraries and documentation centres standard by BSI Group, 12/31/1980
BS 5938-2:1980 Cores for inductors and transformers for telecommunications. Guide to the drafting of performance specifications standard by BSI Group, 12/31/1980
BS MA 74-2:1981 Tapers and other outboard details of propeller shafts. Specification for shafts of diameter greater than 160 mm up to 1000 mm standard by BSI Group, 12/31/1980
BS 5550-4.2.1:1980 Cinematography. 65 mm and 70 mm film. Image areas. Specification for positions and dimensions of image area produced by 65 mm and 70 mm motion-picture camera aperture and maximum projectable image area on 70 mm motion-picture prints standard by BSI Group, 12/31/1980
BS 5550-2.4.4:1980 Cinematography. 16 mm film. Sound. Specification for positions and width dimensions of recording head gaps for two sound records on 16 mm magnetic film standard by BSI Group, 12/31/1980
BS 5050-8:1980 Methods of test for cryolite. Determination of calcium content standard by BSI Group, 12/31/1980
BS 4993-4:1980 Methods of test for aluminium fluoride for industrial use. Preparation and storage of test samples standard by BSI Group, 12/31/1980
BS 4993-5:1980 Methods of test for aluminium fluoride for industrial use. Determination of moisture content (Karl Fischer method) standard by BSI Group, 12/31/1980