1.10046
Total Hardness Test
colorimetric, water hardness 5-25 °d, water hardness 6-31 °e, for use with MQuant® StripScan App, water hardness 9-45 °f, MQuant®
Synonym(s):
Total Hardness chemical test strips
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About This Item
UNSPSC Code:
41116116
NACRES:
NA.24
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description
semi-quantitative
Quality Level
product line
MQuant®
specific analyte(s)
calcium, magnesium
water hardness measuring range
5-25 °d
6-31 °e
9-45 °f
compatibility
for use with MQuant® StripScan App
detection method
colorimetric
storage temp.
15-25°C
General description
Method: Colorimetric, with test strips, >5 - >10 - >15 - >20 - >25°d, >6 - >13 - >19 - >25 - >31°e, >9 - >18 - >27 - >36 - >45°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.
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.
Linkage
Replaces: 10046-1; 10046
Legal Information
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 Class Code
11 - Combustible Solids
WGK
WGK 1
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