Accuracy of determination of ammoniacal nitrogen in river waters
Subtitle: r esults of water authority tests made for the Harmonised Monitoring Scheme of the Department of the Environment
By: by the Committee for Analytical Quality Control (Harmonised Monitoring).
Contributors: Great Britain. Department of the Environment. Harmonised Monitoring Scheme.
Series: Technical report -- TR 58
Publisher: Water Research Centre
Published: 1977
Place of publication: Stevenage
Language: eng