We provide a full range of analytical, research, testing and certification services for the water and wastewater treatment industry. Product evaluation with respect to new, established and emerging Public Health standards is the primary purpose of NAT. Companies wishing to test their products can conduct real world evaluations and receive timely results directly from us. New product research and existing product refinement is professionally and accurately performed at our facility. We can consult with organizations wanting to analyze or improve their treatment processes. Our equipment is designed to directly simulate the conditions that treatment systems will experience when installed in the field. Research and testing programs can be designed to conform to existing as well as experimental protocols.


Evaluations are available for any treatment parameter. Clients with particular needs can select their desired test and we will design a process to help them meet their goals.  Tests are commonly conducted on CBOD5, TSS, Nitrogen series, pH, fecal coliform, temperature, turbidity, chlorine residual, dissolved oxygen and several others to evaluate and certify treatment products.


North American Testing (NAT) is accredited by the American National Standards Institute (ANSI) to certify products to the following Standards:

  • NSF/ANSI 40

  • NSF/ANSI 46

  • NSF/ANSI 245

  • NSF/ANSI 350

  • NSF/ANSI 385

Purchase NSF Standards here: www.techstreet.com/nsf



North American Testing

PO Box 323, Norwalk, OH, USA 44857

Ph: 419-668-1895


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