This PAS describes a method for the determination of time-weighted
average concentrations of priority pollutants in surface water by passive
sampling, followed by analysis.
PAS 61-2006 Referenced Document
BS 6068-1.2 Water quality - Glossary - Additional terms relating to types of water, and treatment and storage of water and waste water, and terms used in sampling and analysis of water
BS 6068-6.14 Water quality - Sampling - Guidance on quality assurance of environmental water sampling and handling
BS 6068-6.4 Water quality - Sampling - Guidance on sampling from lakes, natural and man-made