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BS 5501-1:1977Electrical apparatus for potentially explosive atmospheres. General requirementsstandard by BSI Group, 12/30/1977
BS 5525:1977Specification for 35 mm microcopying of maps and plansstandard by BSI Group, 12/30/1977
BS 5522:1977Specification for milk and milk products. Determination of fat content. Mojonnier-type fat extraction flasksstandard by BSI Group, 12/30/1977
BS 5518:1977Specification for electronic variable control switches (dimmer switches) for tungsten filament lightingstandard by BSI Group, 12/30/1977
BS 5443:1977Recommendations for a standard layout for methods of chemical analysis by gas chromatographystandard by BSI Group, 11/30/1977
BS 4584-13:1977Specification for metal-clad base materials for printed circuits. Silicone woven glass fabric copper-clad laminated sheet Si-GC-Cu-13standard by BSI Group, 11/30/1977
BS MA 47:1977Code of practice for ships' cargo blocksstandard by BSI Group, 11/30/1977
BS 5493:1977Code of practice for protective coating of iron and steel structures against corrosionstandard by BSI Group, 10/31/1977
BS 5501-2:1977Electrical apparatus for potentially explosive atmospheres. Oil immersion 'o'standard by BSI Group, 12/30/1977
BS 1756-4:1977Methods for sampling and analysis of flue gases. Miscellaneous analysesstandard by BSI Group, 10/31/1977
BS 4050-1:1977Specification for mosaic parquet panels. General characteristicsstandard by BSI Group, 10/31/1977
BS 1000[52]:1977Universal Decimal Classification. English full edition. Astronomy. Astrophysics. Space research. Geodesystandard by BSI Group, 10/31/1977