Total carbon and total organic carbon determination in sludge

In this application note, Velp Scientifica evaluates the performance of the VELP CN 802 by participating in the Proficiency Testing program organized by WEPAL (Wageningen Evaluating Programs for Analytical Laboratories). Samples of sewage sludge were analyzed using the CN 802 and the results obtained (as % Nitrogen) were compared with the statistical range accepted by WEPAL.