On Sat, 30 Jul 2005 15:06:41 -0700, Aidan wrote:


Ed Sirett wrote:
I reckon testing it dry using about 0.5-1.0 bar this will show up major
faults

Pressure testing with air is inherently dangerous. The BSI's panel of
experts who compiled the BS on pressure testing recommended against it.
Lots of people do it as routine, usually those who haven't seen a
failure under air pressure.


The energy stored goes up with the square of absolute pressure, hence
testing to a modest pressure should be _much_ less hazardous.

--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at http://www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html