Hydrostatic Pressure Test - Exclusion Zone

[MH87]

Hi,

I'm currently looking at undertaking a hydrostatic pressure test on a petrochemical site, but as part of the risk assessment process have been asked to provide a safe exclusion distance from the test pipework while under pressure.

Does anyone know of any calculations to best determine this distance? I'm ideally looking for a reference to an official source / standard in this field (something I have not been able to track down myself).

Could you please help?

 

[moltenmetal]

You can find an equation for this if you search this site. I have not seen the basis used for calculating this distance though. As to code references, I don't have one for you.

 

[JR97]

MH87,

Here is a previous thread on hydrostatic test safety:

http://www.eng-tips.com/viewthread.cfm?qid=282594

This is link to a good publication on pressure system safety. Appendix B covers restricted areas. They are calculated for pnuematic tests. It is a good starting point for hydrostatic tests.

http://smad-ext.grc.nasa.gov/shed/pub/gsm/chapter_07.pdf

JR97