Total Hardness Test

Кат. номер

1100250001

1.10025.0001

US11.10025/0001

Method: Colorimetric, with test strips, <3 - >4 - >7 - >14 - >21°d, <4 - >5 - >9 - >18 - >26°e, <5 - >7 - >12 - >25 - >37°f, MQuant®
The MQuant® total hardness test strips can be used to measure water hardness. The hardness (total hardness) of a given water is due to its content of salts of the alkaline earth metals calcium, magnesium, strontium, and barium (“hardening constituents”, later compounds only in traces). In the presence of a green indicator the hardness ions Ca2+ und Mg2+ react with Titriplex® (III) to form a colorless, stable complex. The hardness ions that are present in excess relative to Titriplex® (III) react with the indicator to form a red complex. The reaction zones of the test strip, which are impregnated with differing amounts of Titriplex® (III), thus assume a green to red color, depending on the hardness of the water sample. The hardness is measured semi-quantitatively by visual comparison of the reaction zones with the color rows of a color scale. For other sensitivities and graduations please consider the other MQuant® tests as well as our Reflectoquant® and Spectroquant® portfolio.
Replaces: 10025-1; 10025
MQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany
REFLECTOQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany
SPECTROQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany
Titriplex is a registered trademark of Merck KGaA, Darmstadt, Germany

storage conditions	Store at +15°C to +25°C.
Quality Level	100
description	semi-quantitative
product line	MQuant®
specific analyte(s)	calcium, magnesium
water hardness measuring range	3-21 °d, 4-26 °e, 5-37 °f
detection method	colorimetric
storage temp.	15-25°C