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BS 6070-4:1981 Methods of sampling and test for sodium carbonate for industrial use - Determination of matter insoluble in water
BS 6070-5:1981 Methods of sampling and test for sodium carbonate for industrial use - Determination of sulphate content
BS 6070-7:1981 Methods of sampling and test for sodium carbonate for industrial use - Determination of copper content
BS 5626-3.1:1981 Cellulosic papers for electrical purposes. Specifications for individual materials - General purpose paper
BS 6091-1:1981 Vulcanized fibre for electrical purposes - Specification of general requirements
BS 6072:1981 Method for magnetic particle flaw detection
BS 3144:Addendum No. 1:1981 (R2016) Sampling and physical testing of leather partTitleEN sectionTitleEN
BS 3533:1981 Glossary of thermal insulation terms
BS 1902-3.1:1981 Methods of testing refractory materials. General and textural properties - Guidance on sampling
BS 1902-3.2:1981 Methods of testing refractory materials. General and textural properties - Measurement of dimensions of specimens for testing (methods 1902-302)
BS 3623:1981 (R2016) Specification for woodworkers' metal-bodied planes partTitleEN sectionTitleEN
BS 6075-0:1981 Methods of sampling and test for sodium hydroxide for industrial use - General introduction