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BS 7463-3:1991 Fibre furnish analysis of paper, board and pulps - Method of test by Herzberg stain
BS 7463-4:1991 (R2016) Fibre furnish analysis of paper, board and pulps partTitleEN sectionTitleEN
BS 7463-5:1991 (R2016) Fibre furnish analysis of paper, board and pulps partTitleEN sectionTitleEN
BS 7445-2:1991 Description and measurement of environmental noise - Guide to the acquisition of data pertinent to land use
BS 7445-3:1991 Description and measurement of environmental noise - Guide to application to noise limits
DD 203-1:1991 Industrial automation: shop floor production. - Reference model for standardization and a methodology for identification of requirements
BS 2971:1991 Specification for class II arc welding of carbon steel pipework for carrying fluids
BS 5241-2:1991 Rigid polyurethane (PUR) and polyisocyanurate (PIR) foam when dispensed or sprayed on a construction site - Specification for dispensed foam for thermal insulation or buoyancy applications
BS 4377:1991 (R2017) Specification for tapping of holes to receive wire thread inserts (ISO metric threads) partTitleEN sectionTitleEN