Specifications:

• Hach Hardness Test Strips 0-425ppm, 250 Tests/Indiv. Wrap.
• Hardness: Water hardness is caused almost entirely by calcium and magnesium ions.
• Other di- and trivalent metals have a similar effect, but usually are not present in high enough concentration in potable waters to cause problems.
• Hardness increases soap consumption in laundries and causes scale in boilers.
• Fast, reliable and safe test strips from Hach: Hach Test Strips are easy to use and easy to read.
• In the field, technicians can test many samples in only a few minutes, and make immediate evaluations on-site.
• In the lab, Hach test strips are ideal in pre-test screening to detect the presence of materials that might interfere with lab testing.