Ozone Generator Standard NSF/ANSI 222
NSF International (NSF), the Water Quality Association and the International Ozone Association (IOA) developed the subject standard to provide a method to evaluate ozone generator production performance and establish minimum requirements for the ozone generator materials, design and contruction. The standard applies to smaller ozone generators with production of 500 g/hr of ozone (26.4 lbs/day). A copy of the standard can be obtained from the NSF at www.nsf.org. One can also call the NSF 734-769-8010.
One of the reasons for the development of the standard was to allow smaller users, that might not have the technical capability to evaluate ozone generators individually, to benefit from the knowledge of independent organizations skilled in water treatment and ozone generation. Knowing that an ozone generator meets NSF 222 allows companies and governmental entities to compare competitive ozone generators on a common basis.
Purchasers of a small ozone generator should review NSF 222 whether or not the unit ultimately purchased is made to the standard. Reviewing the standard will allow the buyer to understand important aspects of ozone generator performance.
Spartan Environmental Technologies supplies ozone genrators that conform to NSF 222.