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BS 1936-2:1991 Undercuts and runouts for screw threads - Specification for ISO metric screw threads
BS 5724-3.12:1991 Medical electrical equipment. Particular requirements for performance - Method of declaring parameters for lung ventilators
BS 2782-3:Method 360C:1991 Methods of testing plastics. Mechanical properties - Determination of tear resistance of plastics film and sheeting by the initiation method
BS 5551-2.9:1991 Fertilizers. Sampling - Sampling plan for the evaluation of a large delivery of solid fertilizer
BS 7494-1:1991 (R2014) Performance and testing of teleprotection equipment power systems. partTitleEN sectionTitleEN
BS 6200-3.16.3:1991 Sampling and analysis of iron, steel and other ferrous metals. Methods of analysis. Determination of lead - Steel: spectrophotometric method for trace amounts
BS 3531-11:1991 Implants for osteosynthesis - Implants for osteosynthesis. Specification for staples with parallel legs
BS 3531-23.3:1991 Implants for osteosynthesis. Bone plates - Specification for holes corresponding to screws with asymmetrical thread and spherical undersurfaces
BS 3870-1:1991 Stitches and seams - Classification and terminology of stitch types
BS 7537-1:1991 Measurement techniques and operational adjustments of broadcast VTRs - Guide to operational adjustments on analogue composite broadcast VTRs
BS 7537-2:1991 Measurement techniques and operational adjustments of broadcast VTRs - Guide to special mechanical measurements and alignments
BS 7527-2.5:1991 Classification of environmental conditions. Environmental conditions appearing in nature - Dust, sand, salt mist