MilliporeSigma
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1.11142

Supelco

Residual Hardness Test

colorimetric, water hardness 0.04-0.15 °d, water hardness 0.05-0.19 °e, 0.7-2.7 mg/L (CaCO3), for use with MQUANT®

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Select a Size

specific analyte(s)

calcium, magnesium

Quality Level

measuring range

0.7-2.7 mg/L (CaCO3)

water hardness measuring range

0.04-0.15 °d
0.05-0.19 °e

compatibility

for use with MQUANT®

detection method

colorimetric

storage temp.

15-25°C

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This Item
1.080481.100321.10025
Residual Hardness Test colorimetric, water hardness 0.04-0.15 °d, water hardness 0.05-0.19 °e, 0.7-2.7 mg/L (CaCO3), for use with MQUANT®

Supelco

1.11142

Residual Hardness Test

Carbonate Hardness Test for use with MQUANT®

Supelco

1.08048

Carbonate Hardness Test

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

Supelco

1.10032

Total Hardness Test

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

detection method

colorimetric

detection method

titrimetric

detection method

colorimetric

detection method

colorimetric

measuring range

0.7-2.7 mg/L (CaCO3)

measuring range

-

measuring range

-

measuring range

-

water hardness measuring range

0.04-0.15 °d

water hardness measuring range

-

water hardness measuring range

3-21 °d, 4-26 °e, 5-37 °f

water hardness measuring range

3-21 °d, 4-26 °e, 5-37 °f

microbialanalysis
microbialanalysis

microbialanalysis
microbialanalysis

microbialanalysis
microbialanalysis

microbialanalysis
microbialanalysis

compatibility

for use with MQUANT®

compatibility

for use with MQUANT®

compatibility

-

compatibility

-

General description

Method: colorimetric with color card 0.04 - 0.08 - 0.15 °d 0.05 - 0.1 - 0.19°e 0.7 - 1.4 - 2.7 mg/l CaCO₃ MQuant®
This MQuant® Residual Hardness test (formally MColortest®) is suitable for the colorimetric determination using the easy to use color card. Calcium and magnesium ions react with an indicator to form a red complex compound. The residual hardness is measured semiquantitatively by visual comparison of the color of the measurement solution with the color fields of a color card.
The test can be used in:
  • Boiler water and boiler feed water
  • Check of ion-exchanger plants for the production of deionized water

Legal Information

MCOLORTEST is a registered trademark of Merck KGaA, Darmstadt, Germany
MQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

10 - Combustible liquids

WGK

WGK 2


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