6.4 Testing

6.4.1 The maximum test pressure should be no less than 1.2 timesof the design pressure. The pressure shall be graded into no less than5 levels, and be applied grade by grade according to the maximumpressure.6.4.2 Observe the initial stable reading of meas ......（本文共 1721 字 ）     [阅读本文] >>