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ISO 4912:1981Textiles -- Cotton fibres -- Evaluation of maturity -- Microscopic methodstandard by International Organization for Standardization, 06/01/1981
ISO 6541:1981Agricultural food products -- Determination of crude fibre content -- Modified Scharrer methodstandard by International Organization for Standardization, 06/01/1981
ISO 4854:1981 [ Withdrawn ]Personal eye-protectors - Optical test methodsstandard by International Organization for Standardization, 05/01/1981
ISO 4143:1981Shipbuilding -- Inland vessels -- Open rowing lifeboatsstandard by International Organization for Standardization, 05/01/1981
ISO 4707:1981 [ Withdrawn ]Cork -- Stoppers -- Sampling for inspection of dimensional characteristicsstandard by International Organization for Standardization, 05/01/1981
ISO 6989:1981Textile fibres -- Determination of length and length distribution of staple fibres (by measurement of single fibres)standard by International Organization for Standardization, 05/01/1981
ISO 6692:1981Cycles - Marking of cycle componentsstandard by International Organization for Standardization, 05/01/1981
ISO 5940:1981 [ Withdrawn ]Carbonaceous materials for the production of aluminium -- Pitch for electrodes -- Determination of softening point by the ring-and-ball methodstandard by International Organization for Standardization, 05/01/1981
ISO 4310:1981Cranes - Test code and proceduresstandard by International Organization for Standardization, 05/01/1981
ISO 4543:1981Metallic and other non-organic coatings - General rules for corrosion tests applicable for storage conditionsstandard by International Organization for Standardization, 05/01/1981
ISO 301:1981Zinc alloy ingots intended for castingstandard by International Organization for Standardization, 05/01/1981
ISO 6129:1981Chromium ores -- Determination of hygroscopic moisture content in analytical samples -- Gravimetric methodstandard by International Organization for Standardization, 05/01/1981