ISO 4797:1981 [ Withdrawn ] Laboratory glassware; Flasks with conical ground joints standard by International Organization for Standardization, 05/01/1981
ISO 4920:1981 Textiles -- Determination of resistance to surface wetting (spray test) of fabrics standard by International Organization for Standardization, 05/01/1981
ISO 4855:1981 [ Withdrawn ] Personal eye-protectors - Non-optical test methods standard by International Organization for Standardization, 04/01/1981
ISO 4302:1981 Cranes - Wind load assessment standard by International Organization for Standardization, 05/01/1981
ISO 5251:1981 Stainless steel butt-welding fittings standard by International Organization for Standardization, 04/01/1981
ISO 65:1981 Carbon steel tubes suitable for screwing in accordance with ISO 7-1 standard by International Organization for Standardization, 04/01/1981
ISO 5498:1981 Agricultural food products -- Determination of crude fibre content -- General method standard by International Organization for Standardization, 04/01/1981
ISO 6835:1981 Surface active agents -- Washing powders -- Determination of total boron content -- Titrimetric method standard by International Organization for Standardization, 04/01/1981
ISO 5903:1981 [ Withdrawn ] Gymnastic equipment -- Landing mats and surfaces for floor exercises -- Determination of hardness and impact damping standard by International Organization for Standardization, 04/01/1981
ISO 6629:1981 Chromium ores and concentrates -- Methods of chemical analysis -- General instructions standard by International Organization for Standardization, 04/01/1981
ISO 4176:1981 Fertilizers - Determination of nitrate nitrogen content - Nitron gravimetric method standard by International Organization for Standardization, 04/01/1981
ISO 6384:1981 Surface active agents -- Technical ethoxylated fatty amines -- Methods of analysis standard by International Organization for Standardization, 04/01/1981