表面粗糙度测试

 surface profile shall be tested using a Press-o-film replication tape in accordance with AS 3894.5
Method A, a minimum of four (4) times per shift or at a frequency agreed upon between the Supplier
and the Principal based on the quality plan.  At PQT (each pipe) and at any start up the surface profile
characteristics shall be confirmed using an electronic stylus instrument.  The acceptance criteria are;
  Rz (Average Profile Height) = 60 µm - 100 µm (ISO 8503-4)
  Peak count minimum 30 peaks/cm, (ISO 8503-4)

表面粗糙度的峰值数量谁有测试过的？  如何检测？   这个要求高不高。