PVC-U给排水管材、管件国家标准中相关不足的商榷

Discussion on some shortages of national standards of PVC-U water supply and drainage pipes and pipe fittings

对现行PVC-U给排水管材、管件国家标准中存在的承口尺寸测量方法测量能力指数不足、壁厚测量检验水平选择不当和物理、力学检验项目抽样方案设置不当等问题进行了讨论,并提出了相应改进建议。

Shortages of national standards,such as the insufficient ability for the measurement of socket size,unsuitable levels for the measurement of wall thickness and improper sampling method for the mechanical measurement items, were discussed, and corresponding improving suggestions were proposed.