This is to certify that the management system of Hach Company 5600 Lindbergh Drive Loveland, CO 80538 has been assessed and certified as meeting the requirements of ISO 9001:2008 This certificate of registration remains valid subject to satisfactory surveillance audits for the following activities: Hach Company designs, distributes, and services products used for air, water and liquid analysis. This includes the following functions at the following locations: Design, manufacturing, delivery and service of products at 5600 Lindbergh Drive Loveland, CO 80538; Design, manufacturing, delivery and service of products at 100 Dayton Avenue, Ames, IA 50010; Design and development and service functions of product, excluding purchasing and manufacturing function, at 3504 Henke Street, Elkhart, IN 46514. Excluded from this scope is the ELE International Business Unit. Certificate Number: Certified since Date issued Date of certification Valid until QSR-268 June 27, 1994 December 7, 2015 December 5, 2015 September 15, 2018