DN-07d: Test and Purge LP Service (2 in / 63 mm)
by Alan Milford, from the Community
This DN-07d checklist guides operatives through testing, purging, and commissioning low-pressure gas services up to 2 in / 63 mm. It covers secure capping, pressurizing to 100 mbar, a 5-minute no-loss test per SGN procedures, leak checks with approved detection fluid, and ECV actions. Purging guidance includes communication between operatives, use of a flame-trap purge hose, and stopping criteria of 90 percent gas in air confirmed twice with a Gascoseeker, or timed purging (1 s/m for pipes under 32 mm; 4 s/m up to 63 mm). Final steps include capping, tightening, labeling, and recording results.
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This community page makes available free workplace checklists and templates created by other users within the SafetyCulture community. SafetyCulture has re-published this content and where possible, has credited the original author. SafetyCulture has not verified the accuracy, reliability or suitability of any community content. You agree that your use of any of this content is in accordance with SafetyCulture’s Terms and Conditions.