Table of Contents

Foreword<br>Introduction<br>1 Scope<br>2 Normative references<br>3 Terms and definitions<br>4 Overview of ground gas protection<br>5 Site investigation for ground gases<br>6 Process for ground gas characterization and hazard<br>&nbsp;&nbsp;assessment<br>7 Solutions choice and detailed design<br>8 Implementation, verification and reporting<br>Annexes<br>Annex A (informative) - Floor slab and substructure<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;design<br>Annex B (normative) - Applicability and design of ventilation<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Protection measures<br>Annex C (informative) - Gas resistant membrane selection<br>Annex D (informative) - Characterization without gas<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;monitoring data<br>Annex E (informative) - Sampling, examination and TOC<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;testing of made ground for the assessment of the<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;potential for gas generation<br>Annex F (informative) - Worked examples<br>Annex G (informative) - Radon<br>Annex H (informative) - Volatile organic compounds (VOCs)<br>Bibliography

Abstract

Provides recommendations on ground gas site Characterization and the choice of solutions for the design of integral gas protective measures for new buildings to prevent entry of carbon dioxide and methane, and provide a safe internal environment.

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Published
Document Type	Standard
Status	Current
Publisher	British Standards Institution
Pages
ISBN
Committee	EH/4
Supersedes	15/30283599 DC : 0 BS 8485(2007) : 2007