Renewal of qualification may be made for any process by welding a single test coupon of either plate or pipe, and by testing of that coupon as required by QW-301 and QW-302.
如需重新获得资质，则该焊工需要遵照QW - 301和QW - 302的要求，在一个板材附件试片，或一个管材附件试片上，进行焊接试验。
It includes the testing method, the process and the result of welding procedure qualification.
其中包括焊接工艺评定的试验方法、过程和结果。
First, prepare WPS, and then press WPS welding process evaluation, PQR report form, only the welding procedure qualification requirements, WPS can be used in the products of welding.
先编制WPS，然后按WPS做焊接工艺评定，形成PQR报告，只有焊接工艺评定符合要求，WPS才能用在产品的焊接上。
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