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4.3 General Standards
4.3.1 Scope:the quality acceptance of the erection project of pipes for the thermal power plants.Visual examination and cleaning of pipes is shown in Table 4.3.1-1,The prefabrication of pipes is shown in Table 4.3.1-2.The inspection and erection of valves is shown in Table 4.3.1-3.
4.3.2 Inspection quantity:detailed inspection shall be carried out according to the items.
4.3.3 Quality criteria:in accordance with the requirements in Table 4.3.1-1 to Table 4.3.1-3.
Table 4.3.1-1 Visual examination and cleaning of pipes
![img](https://epubservercos.yuewen.com/6CF431/18000634801101506/epubprivate/OEBPS/Images/txt004_46.jpg?sign=1739593743-9DPYEeXNa137Km1VxMxfzdBGjTqOscJb-0-8a0a8edd33e6bd1caad47360018b9eca)
Table 4.3.1-1(Continued)
![img](https://epubservercos.yuewen.com/6CF431/18000634801101506/epubprivate/OEBPS/Images/txt004_47.jpg?sign=1739593743-Ss1RnqMkr8SEPwG3drWHfQtfQFsMlZ9Z-0-9393dca7687bf77c8a679e75cde5a7f4)
Table 4.3.1-2 Prefabrication of pipes
![img](https://epubservercos.yuewen.com/6CF431/18000634801101506/epubprivate/OEBPS/Images/txt004_48.jpg?sign=1739593743-0Wl0mR6bzKh0KecckvSwBCSO7i5MYMVt-0-0cb643f47e2dfc3fcbb207284b2badb6)
Table 4.3.1-3 Inspection and erection of valves
![img](https://epubservercos.yuewen.com/6CF431/18000634801101506/epubprivate/OEBPS/Images/txt004_49.jpg?sign=1739593743-e4oFxtLw6b8NztTh3tGR8pyFjK2ux6Ly-0-2db42bb3886229eb7466b269a858d858)