Skip to main content


Title: Procedures and results of biochemical oxygen demand tests carried out at the Crossness laboratory 1990
Author: Sarah Clark
Document Type: Monograph
Biochemical oxygen demand (BOD) tests were carried out for a number of reasons, and various techniques were employed. At the start of the exercise river and effluent samples were tested using the Standard Method (2nd Edition, 1988). Dilution water was made up and used where necessary. The test however was not restricted to 5 days, but extended to 10 days, 20 days and 30 days (tables 1, 1A and 2). BOD tests were done using allylthiourea (ATU) and also without ATU, so that any nitrification occurring in the sample could be identified. Ammonia concentrations were also measured over the test period.
Publisher: National Rivers Authority
Publication Date: 1991
Publication Place: Bristol
Extent: n.p. [36]
Total file downloads: 40

Download PDF    Display PDF in separate tab