Standard Code | Standard Title | Standard Class | Order |
---|---|---|---|
GB/T 40742.4-2021 |
Geometrical product specifications (GPS)—Geometrical precision verification—Part 4:Evaluation of dimension and geometrical error,Discriminant pattern of minimum zone 产品几何技术规范(GPS) 几何精度的检测与验证 第4部分:尺寸和几何误差评定、最小区域的判别模式 |
China National Standards Discriminant |
English PDF |
GB/T 17221-1998 |
Discriminant standard for health hazard area caused by environmental cadmium pollution 环境镉污染健康危害区判定标准 |
China National Standards Discriminant |
English PDF |
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