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Platinum Cobalt Color Reference Solution (HAZEN 500)

According to DIN EN ISO 7887 and ASTM D1209 Pt 500 mg/l Certipur®

Quality Level


1.021 g/cm3

storage temp.


General description

Platinum Cobalt Color Reference Solution is gravimetrically prepared using potassium hexachloroplatinate and cobalt chloride hexahydrate in hydrochloric acid. It is manufactured, qualified, and distributed in accordance with DIN EN ISO 9001:2008. It is traceable to NIST SRM 930e and has been analyzed using the double aperture method by high-performance UV/VIV/NIR spectrophotometer in the monochromatic spectral range of 190-800 nm.


The color reference solution can be used for visual comparison or as a calibration standard for instrumental analysis. It can also be used to prepare color reference solutions of different Hazen units.


250 ml in Glass bottle

Features and Benefits

  • Stable solution with a minimum shelf life of 18 months
  • Accompanied by a detailed certificate of analysis (CoA)
  • Compliant to DIN EN ISO 7887, ASTM D1209, DIN EN ISO 6271-1, and APHA 2120 B&C

Legal Information

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


CorrosionHealth hazard

Signal Word


Hazard Statements

Hazard Classifications

Aquatic Chronic 3 - Carc. 1B - Met. Corr. 1

Storage Class Code

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Quality

Enter Lot Number to search for Certificate of Quality (COQ).

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