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
• UNSPSC Code: 41116116
• NACRES: NA.24

Properties

• 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
• Quality Level: 100
• 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

Description

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

Safety Information

• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 2