accuracy of determination of total oxidised nitrogen and of nitritein river waters
Subtitle: results of the 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 63
Publisher: Water ResearchCentre
Published: 1977
Place of publication: Stevenage
Language: eng