ISO 548:1981 Manganese ores -- Determination of barium oxide content -- Barium sulphate gravimetric method standard by International Organization for Standardization, 11/01/1981
ISO 1388-8:1981 Ethanol for industrial use -- Methods of test -- Part 8 : Determination of methanol content (methanol contents between 0,10 and 1,50 % (V/V)) -- Visual colorimetric method standard by International Organization for Standardization, 11/01/1981
ISO 4783-3:1981 Industrial wire screens and woven wire cloth -- Guide to the choice of aperture size and wire diameter combinations -- Part 3 : Preferred combinations for pre-crimped or pressure-welded wire screens standard by International Organization for Standardization, 10/01/1981
ISO 3593:1981 Starch -- Determination of ash standard by International Organization for Standardization, 10/01/1981
ISO 7088:1981 Fish-meal - Vocabulary standard by International Organization for Standardization, 10/01/1981
ISO 7079:1981 Core drills with parallel shanks and with Morse taper shanks standard by International Organization for Standardization, 10/01/1981
ISO 7077:1981 Measuring methods for building -- General principles and procedures for the verification of dimensional compliance standard by International Organization for Standardization, 10/01/1981
ISO 6374:1981 Cryolite, natural and artificial, and aluminium fluoride for industrial use -- Determination of phosphorus content -- Atomic absorption spectrometric method after extraction standard by International Organization for Standardization, 10/01/1981
ISO 787-11:1981 General methods of test for pigments and extenders - Part 11 : Determination of tamped volume and apparent density after tamping standard by International Organization for Standardization, 10/01/1981
ISO 6343:1981 [ Withdrawn ] Micrographics; Unitized microfilm carrier (aperture card); Determination of adhesion of protection sheet to aperture adhesive standard by International Organization for Standardization, 10/01/1981
ISO 5571:1981 Shipbuilding - Identification colours for schemes for ventilation systems standard by International Organization for Standardization, 10/01/1981
ISO 3102:1981 [ Withdrawn ] Wheels and castors for non-powered equipment; Off-set for swivel castors standard by International Organization for Standardization, 10/01/1981