A suspended solids analyzer (TSS analyzer) is an instrument used to measure the concentration of suspended solids in liquids (usually water or wastewater). Suspended solids are particles that are insoluble in liquids and can include various substances such as sludge, plankton, industrial waste, and wastewater. The measurement of total suspended solids (TSS) is crucial for evaluating water quality and the effectiveness of water and wastewater treatment processes.