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ISO 601:1981Solid mineral fuels - Determination of arsenic content using the standard silver diethyldithiocarbamate photometric method of ISO 2590standard by International Organization for Standardization, 12/01/1981
ISO 4194:1981Magnesium alloys - Determination of zinc content - Flame atomic absorption spectrometric methodstandard by International Organization for Standardization, 12/01/1981
ISO 4192:1981Aluminium and aluminium alloys - Determination of lead content - Flame atomic absorption spectrometric methodstandard by International Organization for Standardization, 12/01/1981
ISO 2016:1981Capillary solder fittings for copper tubes -- Assembly dimensions and testsstandard by International Organization for Standardization, 12/01/1981
ISO 4193:1981Aluminium and aluminium alloys - Determination of chromium content - Flame atomic absorption spectrometric methodstandard by International Organization for Standardization, 12/01/1981
ISO 2551:1981 [ Withdrawn ]Machine-made textile floor coverings -- Determination of dimensional changes due to the effects of varied water and heat conditionsstandard by International Organization for Standardization, 12/01/1981
ISO 1138:1981Rubber compounding ingredients - Carbon black - Determination of sulphur contentstandard by International Organization for Standardization, 12/01/1981
ISO 320:1981Manganese ores -- Determination of sulphur content -- Barium sulphate gravimetric methods and sulphur dioxide titrimetric method after combustionstandard by International Organization for Standardization, 12/01/1981
ISO 3952-1:1981Kinematic diagrams - Graphical symbols - Part 1standard by International Organization for Standardization, 12/01/1981
ISO 7130:1981Earth-moving machinery -- Guide to procedure for operator trainingstandard by International Organization for Standardization, 12/01/1981
ISO 1388-5:1981Ethanol for industrial use -- Methods of test -- Part 5 : Determination of aldehydes content -- Visual colorimetric methodstandard by International Organization for Standardization, 12/01/1981
ISO 1388-9:1981Ethanol for industrial use -- Methods of test -- Part 9 : Determination of esters content -- Titrimetric method after saponificationstandard by International Organization for Standardization, 12/01/1981