MilliporeSigma
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1.10025

Supelco

Total Hardness Test

colorimetric, water hardness 3-21 °d, water hardness 4-26 °e, water hardness 5-37 °f, MQuant®

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Synonym(s):
Total Hardness chemical test strips

description

semi-quantitative

Quality Level

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

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1 of 4

This Item
1.100461.169971.11104
Total Hardness Test colorimetric, water hardness 3-21 °d, water hardness 4-26 °e, water hardness 5-37 °f, MQuant®

Supelco

1.10025

Total Hardness Test

Total Hardness Test colorimetric, water hardness 5-25 °d, for use with MQuant® StripScan App, water hardness 6-31 °e, water hardness 9-45 °f, MQuant®

Supelco

1.10046

Total Hardness Test

Total Hardness Test reflectometric, water hardness 0.1-30.0 °d, for use with REFLECTOQUANT®

Supelco

1.16997

Total Hardness Test

Total Hardness Test titrimetric, for use with MQUANT®

Supelco

1.11104

Total Hardness Test

detection method

colorimetric

detection method

colorimetric

detection method

reflectometric

detection method

titrimetric

description

semi-quantitative

description

semi-quantitative

description

quantitative

description

-

product line

MQuant®

product line

MQuant®

product line

-

product line

-

water hardness measuring range

3-21 °d

water hardness measuring range

5-25 °d, 6-31 °e, 9-45 °f

water hardness measuring range

0.1-30.0 °d

water hardness measuring range

-

microbialanalysis
microbialanalysis

microbialanalysis
microbialanalysis

microbialanalysis
microbialanalysis

microbialanalysis
microbialanalysis

General description

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.

Linkage

Replaces: 10025-1; 10025

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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