Generally, the procedure qualification test shall be carried out on the product, or on the relevant testcoupon.
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。
2
The current limiting resistors (r) protect the scanner CARDS from damage if the testcoupon 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。
3
The Welder shall be allocated a unique identification number which will be marked onto the testcoupon. The identification will be maintained during all testing activities.