Home / Standards / GB/T 18777-2009 GB/T 18777-2009 Abolished Geometrical product specifications (GPS) - Surface texture - Profile method - Metrological characteristics of phase correct filters 产品几何技术规范(GPS) 表面结构 轮廓法 相位修正滤波器的计量特性 Standard Type GBT ICS 17.040.20 CCS J04 Status 废止 Issue Date 2009-11-15 Implementation 2010-09-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委