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Merck

1.11142

Residual Hardness Test Kit, colorimetric

water hardness 0.04-0.15 °d, water hardness 0.05-0.19 °e, 0.7-2.7 mg/L (CaCO₃), MQuant®

Synonym(s):

Residual Hardness Visual Test Kit

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About This Item

UNSPSC Code:
41116116
NACRES:
NA.24

Key Documents

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Product Name

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®

specific analyte(s)

calcium, magnesium

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

Quality Level

100

Related Categories

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

10 - Combustible liquids

wgk

WGK 2

Certificates of Analysis (COA)

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Global Trade Item Number

SKUGTIN
1.11142.000104022536130514

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