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What inspection reports are required for instrument pipe valves?

2015-08-04View Original

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What inspection reports are required for instrumentation products? As far as I know, there are material reports and pressure test certificates; are there any others besides these two?
Reply #22015-08-04
For domestically produced instruments, valves, and pipe fittings, a certificate of conformity is sufficient; in more formal establishments, a test report is also required
Reply #32015-08-04
For domestically produced instruments, valves, and pipe fittings, a certificate of conformity is sufficient; in more formal establishments, a test report is also required
Reply #42015-08-04
These certificates won’t do; the petrochemical industry does not recognize them
Reply #52015-08-04
There are material reports, pressure test certificates, and quality certification documents. .
Reply #62015-08-04
What exactly are quality certification documents? Which institution needs to issue the certificate?

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