The IGEM/UP/1 Toolkit — Commercial Tightness Testing

A complete site-ready calculator for commercial gas installation testing to IGEM/UP/1 — strength test, Installation Volume, Tightness Test Time, Leak Rate, and Maximum Permitted Leak Rate, all in one tool.

Covers both new and existing installations:

Strength test parameters, pressure, duration and max permitted drop, including pneumatic exclusion zone distances

Installation Volume calculated from your actual pipe runs and meter

Let-by test for existing pipework

Tightness test duration, stabilisation, and pass/fail against MPLR

Smell of gas check and fail-handling guidance in line with the standard

Full job record — company, engineer, site details, and photos — ready to print or share

Works on your phone or tablet on site, no signal needed once loaded. One license key unlocks the tool on up to 2 devices.

Has a light and dark mode if you're stuck in a dark hole!