Tightness Testing and Purging Essex Heating Services are able to offer a Tightness Testing & Purging service, working to Industry Standards: IGE/UP/1A – Industrial and Commercial gas pipe-work must comply with a volume of 1m3 or below IGE/UP1 – Industrial and Commercial gas pipe-work must comply with a volume of 1m3 or above A purge … Continue reading “Testing and Purging Gas Pipework”