# Commission Implementing Decision of 26 September 2014 establishing the best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council, for the production of pulp, paper and board (notified under document C(2014) 6750) (Text with EEA relevance) (2014/687/EU), Division: AVERAGING PERIODS FOR EMISSIONS TO WATER

Extent: E+W+S+N.I.

Unless stated otherwise, the averaging periods associated with the BAT-AELs for emissions to water are defined as follows.
In special cases, there may be a need to apply a different sampling procedure (e.g. grab sampling)
Daily average
Average over a sampling period of 24 hours taken as a flow-proportional composite sample or, provided that sufficient flow stability is demonstrated, from a time-proportional sample
Yearly average
Average of all daily averages taken within a year, weighted according to the daily production, and expressed as mass of emitted substances per unit of mass of products/materials generated or processed

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Source: https://www.legislation.gov.uk/eudn/2014/687/annex/division/4 (the official version)
Page: https://openlegislation.uk/eu-decision-2014-687/annex/division-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.