This British Standard gives recommendations and describes methods
for the investigation and assessment of the ground gases methane and
carbon dioxide during new development of affected sites, and is not
intended for the assessment of completed developments.
It details a process that can be used to effectively demonstrate that risks
posed by the potential presence of ground gas have been adequately
considered and addressed.
It presents the assessment and decision making stages in the form of a
process flowchart, accompanying information and explanatory
guidance and, where appropriate, references to other guidance and
information.
The standard does not consider ground gases other than methane and
carbon dioxide.
NOTE Other gases might require specific risk assessments and have to be
considered separately.