MilliporeSigma
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1.16997

Supelco

Total Hardness Test

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

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Synonym(s):
Total Hardness chemical test strips, Total Hardness test strip for instrument reader

description

quantitative

Quality Level

specific analyte(s)

calcium, magnesium

water hardness measuring range

0.1-30.0 °d

compatibility

RQflex® 10 Plus
RQflex® 10
RQflex® 20
for use with REFLECTOQUANT®

detection method

reflectometric

storage temp.

15-25°C

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This Item
1.100251.100461.11104
Total Hardness Test reflectometric, water hardness 0.1-30.0 °d, for use with REFLECTOQUANT®

Supelco

1.16997

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

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 titrimetric, for use with MQUANT®

Supelco

1.11104

Total Hardness Test

compatibility

RQflex® 10 Plus, RQflex® 20, for use with REFLECTOQUANT®

compatibility

-

compatibility

for use with MQuant® StripScan App

compatibility

for use with MQUANT®

detection method

reflectometric

detection method

colorimetric

detection method

colorimetric

detection method

titrimetric

description

quantitative

description

semi-quantitative

description

semi-quantitative

description

-

water hardness measuring range

0.1-30.0 °d

water hardness measuring range

3-21 °d, 4-26 °e, 5-37 °f

water hardness measuring range

5-25 °d, 6-31 °e, 9-45 °f

water hardness measuring range

-

microbialanalysis
microbialanalysis

microbialanalysis
microbialanalysis

microbialanalysis
microbialanalysis

microbialanalysis
microbialanalysis

General description

Method: reflectometric with test strips 0.1 - 30.0 °d Reflectoquant®
The Reflectoquant total hardness test strips can be used to measure water hardness. The hardness (total hardness) is due to its content of salts of the alkaline earth metals calcium, magnesium, strontium, and barium (“hardening constituents”, later compounds only in traces). The reaction zones of the test strip, which are impregnated with differing amounts of Titriplex III, assume a green to red color, depending on the hardness of the water sample. The color is then determined reflectometrically on the RQflex. For pre-testing a sample in an economic and quick way to check for nitrite interferences or to estimate the hardness and a possible dilution factor prior to using this quantitative method we recommend our semi-quantitative MQuant test strips for total hardness. Further quantitative determination methods can be found with our Spectroquant tests.

Analysis Note

function control: conforms
Assay
- standard 1:
3.1 - 3.9 °d
- standard 2: 8.8 - 10.8 °d
- standard 3: 22.7 - 27.7 °d

Legal Information

REFLECTOQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany
RQFLEX is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 1


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