Originally published: High Wycombe : British Effluent and Water Association, 1993.
Cover title: The specification, approval and testing of granular filtering materials.
Publisher's no. BW:P.18.93.
Standard for the specification, approval and testing of granular filtering materials by British Water. ISBN 095099796x. Published by British Water in 1995. Publication and catalogue information, links to buy online and reader comments.