1.11142
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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About This Item
UNSPSC Code:
41116116
Recommended Products
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
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:
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
Certificates of Analysis (COA)
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