Annual Guide 2017 I SOURCE TESTING ASSOCIATION
• where necessary hoists or lifts should be provided to transport sampling equipment.
• the use of the sampling equipment should not be impeded by guard fences or other structures.
Summary
By ensuring that monitoring arrangements are considered at the design stage of a new plant it should be possible to ensure that stack emission monitoring measurements are both reliable and compliant with legislation.
Sampling platforms
The sample location must be situated where it is possible to erect suitable working platforms. Ideally, the measurement site should be easily and safely accessible via stairs.
Measurements of velocity and of pollutants in a particulate phase require a suffi ciently large working area around the stack, so that specifi ed measurement points in the stack can be sampled with the appropriate length sample probe. In summary:
• the platform surface area should not be less than 5m2
• the minimum length in front of the access port shall be 2m or the length of the probe (which includes nozzles, suction/ support tubes and associated fi lter holders) plus 1m (whichever is the greater)
• the platform should be wide enough to prevent sampling equipment extending beyond the platform
Key references
1Environment Agency Technical Guidance Note M1 Sampling requirements for stack-emission monitoring Version 6, January 2010. Available from
www.mcerts.net
2EN 15259:2007 – Air Quality – Measurement of stationary source emissions – Requirements for measurement sector and sites and for the measurement objective, plan and report.
Contact details
For any further information or advise contact the Source Testing Association,
www.s-t-a.org or telephone +44 (0) 1462 457535
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