Supporting the gas industry since 1863
Sign In

IGE/UP/1A Strength testing, tightness testing and direct purging of small, low pressure industrial and commercial Natural Gas installations.

This standard contains information on the testing and purging of pipework found in small, low pressure industrial and commercial gas installations.

These Procedures apply to any section of pipework containing Natural Gas from the outlet of the emergency control valve having:

  • A volume of not exceeding 1 m3 including any meter and any allowance for fittings.
  • A MOP not exceeding 40 mbar at the outlet of the primary meter regulator.
  • A supply MOP not exceeding 75 mbar.
  • A nominal bore not exceeding 150 mm.

They apply to strength and tightness testing in the following circumstances:

  • New pipework
  • Alteration to, replacement of, re-use of, or uprating existing pipework
  • New extensions to existing pipework
  • Prior to any work on existing pipework
  • Where there is a known or suspected gas leak in pipework
  • Where there has been a complete loss of pressure for any reason
  • Routine testing of existing pipework
  • Immediately before purging pipework (except when taking pipework permanently out of service)

And to direct purging in the following circumstances:

  • New pipework
  • Alteration to, replacement of or re-use of, existing pipework
  • New extensions to existing pipework
  • Where there has been a complete loss of pressure for any reason
  • Where there is the possibility of air being present in pipework
  • Where pipework is to be taken out of service temporarily or permanently

Follow Us on:

Follow us on FacebookFollow us on TwitterFollow us on LinkedInFind us on YouTubeFind us on Flickr