Generally, the procedure qualification test shall be carried out on the product, or on the relevant test coupon.

工艺评定试验一般应在产品上进行，也可在相应的试块上进行。

The current limiting resistors (r) protect the scanner CARDS from damage if the test coupon develops a short circuit.

限流电阻(R)保护扫描卡在测试样板被短路时不被损坏。

The Welder shall be allocated a unique identification number which will be marked onto the test coupon. The identification will be maintained during all testing activities.

焊工应配发唯一识别编号，该编号同时也将标记在附体试片上。在全部试验作业期间，均需保留标识。

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。

General note: the "thickness of weld metal" is the total weld metal thickness deposited by all welders and all processes in the test coupon exclusive of the weld reinforcement.

一般笔记：焊接金属的“厚度”是所有焊工和在测试优惠券的所有过程放置的总焊接金属厚度专属焊接增强。