Hi All, If you have access to CSA Illumina or some other database through your library online databases, please find the following article for me and email it to me, would be a nice help: A Rapid Physical-Chemical method for the Determination of Readily Biodegradable Soluble COD in Municipal Wastewater,. Water Research, Vol 27 No 1, 1993-197. (ISSN 0043-1354) - Dilli drneupane@gmail.com