Standardised methodology - testing effluent samples for NATA labs

The aim of this project was to determine the evaporation of volatile fatty acids (VFAs) in the volatile solids (VS) and total solids (TS) analysis of biogas potential, to establish if this resulted in a material error in reported VS. Pending the outcome of this, the project proposed developing a method that could be used to compensate for errors obtained in the analysis of the VS and TS content at Australian laboratories, due to the loss of VFAs in the drying stage.