ISO/PWI 10303-81:2024ISO/PWI 10303-81:2024(E)urn:iso:std:iso:10303:-81:stage-00.00:enISO/PWI 10303-81ISO/PWI 10303-81:2024(en)10303 International Organization for Standardization ISOcommittee International Organization for Standardization Industrial automation systems and integration TC 184TC 184/SC 4/WG 12 Industrial data SC 4 STEP product modelling and resources WG 12ISOAgency International Organization for Standardization ISOsecretariat International Organization for Standardization ANSI ISO International Organization for Standardization ISOcommittee International Organization for Standardization Industrial automation systems and integration TC 184TC 184/SC 4/WG 12 Industrial data SC 4 STEP product modelling and resources WG 12ISO12024-10-10en00002024 International Organization for Standardization ISOinternational-standardisoISO 10303Preliminary Work Item International Standard