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1.00961 Supelco

Total Hardness Cell Test

photometric, 5-215 mg/L (Ca), water hardness 0.7-30.1 °d, water hardness 0.9-37.6 °e, water hardness 1.2-53.7 °f, 7-301 mg/L (CaO), 12-537 mg/L (CaCO3), Spectroquant®



Quality Level   100
product line   Spectroquant®
measuring range   12-537 mg/L (CaCO3)
  5-215 mg/L (Ca)
  7-301 mg/L (CaO)
water hardness measuring range   0.7-30.1 °d
  0.9-37.6 °e
  1.2-53.7 °f
detection method   photometric
storage conditions   Store at +15°C to +25°C.


General description

Method: photometric 5 - 215 mg/l Ca 0.7 - 30.1 °d 0.9 - 37.6 °e 1.2 - 53.7 °f 7 - 301 mg/l CaO 12 - 537 mg/l CaCO₃ Spectroquant®

Legal Information

SPECTROQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety & Documentation

Safety Information

Protocols & Articles


Analytical Method: Analytical Quality Assurance, Standard for Total Hardness

Dissolve 2.946 g of calcium nitrate tetrahydrate in a calibrated or conformity-checked 500-ml volumetric flask and make up to the mark with distilled water. The stock solution prepared according to t...

Spectroquant® Test Kits for Spectrophotometric Analysis

For Swift, Secure and Precise Analysis, There is No Better Choice Than Spectroquant® Test Kits.
Keywords: Environmental, Environmental Analysis

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