Hach Company was started in 1947 by Clifford and Kathryn Hach, in Ames, Iowa. Their first success was the development of a simplified titration method for measuring hardness in drinking water. As the product line expanded to include more parameters and instruments, the company continued to “bring analytical chemistry out of the laboratory and put it into the workplace and in the hands of the general public.”
Hach opened a Europe office in Namur, Belgium, in 1972, as a first step in the expansion of a global presence that continues today. In 1999, the European facility moved to the Düsseldorf location of the sister company.
==Construction, operations and maintenance==
In the time that the powder is working, the sample should be stored at a temperature between 25 and 35 degrees Celsius.
==Costs==
The cost of the field kit, including enough media for 100 presence-absence tests using 20 mL sample, or 20 MPN tests. Reusable glass vials, and foil-pillowed media, increases shelflife, varies per location and nearest available distributor. To order it go to [http://www.akvo.org hach website].
==Reference manuals, videos, and links==