Turbidity Standards

April 3, 2018
EPA approval was recently awarded for the new ProCal line of primary turbidity standards manufactured by HF scientific. They will replace the Primetime standards currently used in HF scientific products. In addition, the standards are being certified for use in other manufacturer’s instrumentation. Soon almost any turbidity instrument will be able to be calibrated using these pre-diluted, factory-certified ProCal turbidity standards.