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# Safe distance during Piping hydrotest

## Safe distance during Piping hydrotest

(OP)
Members

This is an old topic discussed earlier . (thread292-225652: Hydrostatic Testing Safety)  Safe distance during hydrotesting.
The formula discussed was

safe distance = (0.15) x (D) x (a)^0.4 x (p)^0.6

where  D - internal diameter (m)
a -  length / diameter of piece (m)
p - test pressure  (bar)

The code reference given was Norwegian specification T0240|72-12| and in the footer "Rules, issue 96-02".

is it possible to know the title of the Norwegian Code which is referenced in earlier discussion?

A similar discussion on CR-4 FORUM http://cr4.globalspec.com/thread/17841/Safe-Distance-for-Pressure-Testing
Gives reference to "Netherlands Stoomwezen Rules for pressure vessels

T0240|72-12(96-09)"

Would appreciate if anyone can clarify  the source of this formula for calculating safe distance during hydrotest.
Sree60

### RE: Safe distance during Piping hydrotest

The Spec number given is a Dutch Stoomwezen Code.

### RE: Safe distance during Piping hydrotest

(OP)
Thanks DSB
Could you please let me know how to access/ buy this dutch code?
Any web link will be greatly appreciated

Sree60

### RE: Safe distance during Piping hydrotest

also consider:
Australian and New Zealand Standard AS/NZS 3788:2006 D16.2

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