The design documentation and equipment of filter for fusion nitrogen and complex fertilizers of CFHF type designed and manufactured by Sumy State University are certificated by NP "SC NASTHOL» № ROSS UA.АЯ45.А01260 from 24.04.2008, authorized for use by Russian Federal Agency of Ecologic, Technologic and Nuclear Supervision № РРС 00-22575. The development and production unit of granulation and mass-exchange equipment is certificated, as the one that meets the requirements of ISO 9001:2000, certificate HU 08/3130 from 28.03.2008 and is certified in BUREAU VERITAS (certificate № KIV/ITD/096/2010).