Home / Standards / GB/T 1800.1 GB/T 1800.1 Active Geometrical product specifications (GPS)—ISO code system for tolerances on linear sizes—Part 1: Basis of tolerances, deviations and fits 产品几何技术规范(GPS) 线性尺寸公差ISO代号体系 第1部分:公差、偏差和配合的基础 Standard Type GBT ICS 17.040.10 CCS J04 Status 现行 Issue Date 2020-04-28 Implementation 2020-11-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委