The Accu-Rate Pump Setting Gauge®, made by Kenco, utilizes precision scientific glass to provide the most accurate reading possible for calibrating the flow rate of a chemical metering pump. Pump setting gauges can also be used to periodically monitor the performance and accuracy of a chemical injection system. In a third application, the Accu-Rate Pump Setting Gauge® can be used as the primary containment reservoir of a fluid that will be pumped into a chemical injection system.