Reference and calibration standards for environmental testing protocols; includes water, wastewater, EPA, TOC, DOD and other laboratory and environmental chemical standards.
Use these calibration standards to check your colorimeter instrument operations before measuring COD chemistries, for example in environmental and wastewater monitoring.
Discover Dr. Ehrenstorfer’s certified reference materials: available in multiple formats, including multi-component regulatory mixtures, to power your food and environmental analysis with traceable, ISO-accredited quality