# GB Gas Purging Calculator — IV,PV and Leakage Allowance.

> IV,PV and Leakage Allowance. (iPhone/iPad app by GB-GAS.CO.UK.)

- Source: https://appshunter.io/ios/app/gb-gas-purging-calculator/id426227084 (this page in markdown: same URL + `.md`)
- Developer: [GB-GAS.CO.UK](https://appshunter.io/developer/425897007)
- Category: Business, Utilities
- Price: $4.99
- Age rating: 4+
- Requires: iOS 16.6 · 1 MB
- Languages: American English
- Released: 2011-03-22
- Data updated: 2026-09-10
- User reviews in markdown: https://appshunter.io/ios/app/gb-gas-purging-calculator/id426227084/reviews.md

## What is GB Gas Purging Calculator?

Work out gas purging volumes. under IGE/UP1b Domestic installers can work on pipes up to and including 
35mm or 1 1/4" and meters up to 16 m3/hr volume.
Calculations are required, well not anymore..... select the type of meter, input the lengths of pipe that have or will be installed in the property press calculate
It is so simple no more tables or decimal points to get wrong.
It even tells you what type of purge procedure should be used.
Now includes domestic sized PE Pipes


## Version history (last 5 releases)

### 8 — 2026-08-11

this works with all pipe and meter types.. INput lengths and press calculate. This version allows data to be saved as PDF or Image. Keep your records together.

### 7 — 2020-07-27

Minor Updates and Glitch Fixes

### 6 — 2019-10-03

Added PE pipes to the purge calculation

### 5 — 2018-03-02

Updates for Ipad Screen

### 4 — 2018-01-04

Updates For iOS 11

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All apps by GB-GAS.CO.UK: https://appshunter.io/developer/425897007

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-10.*