| 1. | Specification for welding procedure and performance qualification 焊接程序和性能鉴定的规范 |
| 2. | Specification for welding procedure and performance qualification for thermoplastics 焊接工艺和热塑性塑料性能认证的规范 |
| 3. | Phase 3 - performance qualification , operational testing , or operational approval 第三阶段,性能合格验证,运行测试或运行审核。 |
| 4. | Surfacing procedure qualification and welder performance qualification for high pressure urea equipment 尿素高压设备堆焊工艺评定和焊工技能评定 |
| 5. | Welding procedure qualification and welder performance qualification of cladding and internal for high pressure urea equipments 尿素高压设备衬里板及内件的焊接工艺评定和焊工技能评定 |
| 6. | Performance qualification ( pq ) should follow successful completion of installation qualification and operational qualification 性能确认( pq )应该在安装确认和运行确认成功完成的基础上进行。 |
| 7. | Welding procedure qualification and welder performance qualification of corrosion resistant stainless steel tube - tubesheet joints for high pressure urea equipments 尿素高压设备耐腐蚀不锈钢管子-管板的焊接工艺评定和焊工技能评定 |