API standards relating to instrumentation in Oil and Gas Industry

[sabap]

Can any one suggest API standard numbers applicable to instrument specifications for Oil and Gas industry?

Thanks in advance.

 

[Scotsinst]

The old RP 550 was obsoleted and is in the process of being replaced by RP553 for control valves, RP-554 for control systems, RP 556 for fired heaters (still in progress) and I can't remember the flow RP number which also may be a work in progress.

 

[jmw]

API 554 and API 555 relate to sampling and analytical instruments.

JMW

http://www.viscoanalyser.com

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