ISO 6791:1981 Carbonaceous materials for the production of aluminium -- Pitch for electrodes -- Determination of contents of quinoline-insoluble material standard by International Organization for Standardization, 11/01/1981
ISO 5925-1:1981 Fire tests - Evaluation of performance of smoke control door assemblies - Part 1 : Ambient temperature test standard by International Organization for Standardization, 11/01/1981
ISO 501:1981 [ Withdrawn ] Coal; Determination of the crucible swelling number standard by International Organization for Standardization, 11/01/1981
ISO 738:1981 [ Withdrawn ] Coniferous sawn timber -- Sizes -- Permissible deviations and shrinkage standard by International Organization for Standardization, 11/01/1981
ISO 6544:1981 [ Withdrawn ] Hand-held pneumatic assembly tools for installing threaded fasteners - Reaction torque and torque impulse measurements standard by International Organization for Standardization, 11/01/1981
ISO 1995:1981 Aromatic hydrocarbons -- Sampling standard by International Organization for Standardization, 11/01/1981
ISO 7190:1981 Continuous mechanical handling equipment - Bucket elevators - Classification standard by International Organization for Standardization, 11/01/1981
ISO 5971:1981 Size designation of clothes -- Pantyhose standard by International Organization for Standardization, 11/01/1981
ISO 3915:1981 Plastics - Measurement of resistivity of conductive plastics standard by International Organization for Standardization, 11/01/1981
ISO 7213:1981 Pulps -- Sampling for testing standard by International Organization for Standardization, 11/01/1981
ISO 5459:1981 Technical drawings -- Geometrical tolerancing -- Datums and datum-systems for geometrical tolerances standard by International Organization for Standardization, 11/01/1981
ISO 6948:1981 Automatic steam traps -- Production and performance characteristic tests standard by International Organization for Standardization, 11/01/1981