
GB Gas Onsite Guide
GB Gas Onsite testing guide
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What's New in GB Gas Onsite Guide
5
October 3, 2026
What’s New in This Version Updated with the latest 2026 GB-GAS guides and technical reference information, including: - Updated tightness testing guidance - Installation volume calculations - Purge volume calculations to IGE/UP/1B - Maximum permitted leakage rates - Maximum load working pressure at the meter - Updated gas rate and heat input information - Improved fault-finding reference material - Updated Gas Safety Devices and Controls guide - New section navigation and page-linked notes - Pinch-to-zoom and improved page turning - 3-session full-guide trial with one-time permanent unlock and Restore Purchases This version also includes refreshed GB-GAS styling and the updated splash screen.
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