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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=1739368985-hR8gNPgIgL8xMo9SO13hNaNZdECQz46K-0-07ec6ec325824c85f6e1d941181e3c93)
Table 4.3.1-1(Continued)
![img](https://epubservercos.yuewen.com/6CF431/18000634801101506/epubprivate/OEBPS/Images/txt004_47.jpg?sign=1739368985-IlcT5Jk0qR2LeXjLqNUFKCIx1cQQi6CM-0-b9b211484efc0a49ac71de93986d7ca5)
Table 4.3.1-2 Prefabrication of pipes
![img](https://epubservercos.yuewen.com/6CF431/18000634801101506/epubprivate/OEBPS/Images/txt004_48.jpg?sign=1739368985-4GsMZNHqYwcPRmHvBU5qn6fwfmMuhV4A-0-47760a57325f1adca5cfaac037440382)
Table 4.3.1-3 Inspection and erection of valves
![img](https://epubservercos.yuewen.com/6CF431/18000634801101506/epubprivate/OEBPS/Images/txt004_49.jpg?sign=1739368985-0X21O0psBfWBdJQSo1qv0iNaPuTIcdMG-0-050cc81e2954360f7c9112f9fa9710e1)