S
swifters
Can anyone advise as to the following? I have never heard of mm in a tester before?
Preparation: Temporarily seal open ends of pipework using plugs.
• Testing: Connect a 'U' tube water gauge and pump air into pipework until gauge registers
38 mm.
• Required performance: Allow a period for temperature stabilisation, after which the
pressure of 38 mm is to be maintained without loss for 10 minutes.
Many thanks
Jon
Preparation: Temporarily seal open ends of pipework using plugs.
• Testing: Connect a 'U' tube water gauge and pump air into pipework until gauge registers
38 mm.
• Required performance: Allow a period for temperature stabilisation, after which the
pressure of 38 mm is to be maintained without loss for 10 minutes.
Many thanks
Jon