Aquadur® test strips
ALDRICH/Z166464 - Water hardness, pkg of 100 ea
Synonym: water hardness; water quality
Product Type: Equipment/Book
| color | green to red change |
| description | semi-quantitative |
| detection method | colorimetric |
| manufacturer/tradename | Macherey-Nagel |
| packaging | pkg of 100 ea |
| specific analyte(s) | calcium, magnesium |
| General description: | Aquadur water hardness test strips are the ideal choice to quickly, easily and reliably determine water hardness. In many industries water hardness is an important parameter in process control and has to be monitored constantly, for example in the textile industry, water works, fish-farming and aquaculture. Gradation <55, >90, >180, >270, >360, >445ppm The hardness of water is expressed in mmol/l or in the older common unit degrees of hardness, whereby it is important to differentiate between German, English and French interpretation: in Germany: 1 °d = 10 mg/l CaO = 17.8 mg/l CaCO3 in Great Britain: 1 °e = 14.3 mg/l CaCO3 in France 1 °f = 10 mg/l CaCO3 Conversion factors: 1 °d = 1.25 °e = 1.78 °f = 0.178 mmol/l In the USA, the water hardness is expressed as ppm (mg/l) CaCO3. Generally, water is often simply classified as "soft water", or "hard water" , the following values apply to these terms: below 50 ppm CaCO3 - very soft water 50 − 120 ppm CaCO3 - soft water 120 - 240 ppm CaCO3 - medium hard water 240 - 360 ppm CaCO3 - hard water above 360 ppmCaCO3 - very hard water |
| Legal Information: | Aquadur is a registered trademark of Macherey-Nagel GmbH & Co., KG |
| UNSPSC | 41113034 |