Color Reference Solutions

Application
They are used as calibration and/or quality control standards to measure the degree of coloration of liquids in the brown-yellow-red color range.
Features and Benefits
Ready-to-use solutions
Prepared and qualified in accordance with Ph. Eur.
Available in tamper-evident 2 mL ampules
Expiry dated on the label with a limited shelf life
Accompanied with a detailed certificate of analysis for an effective quality management system
General description
The kit contains a set of seven red color reference standards (identified sequentially from R1 TO R7) and a 1% hydrogen chloride solution in water. The solutions are produced from two primary metal salt solutions of ferric(III) chloride and cobalt(II) chloride, in accordance with chapter 2.2.2 ′Degree of colouration of liquids′ of the European Pharmacopoeia (Ph. Eur.).
Other Notes
This is a set of the following color reference solutions according to PhEur:

Colour Reference Solution R1 – 2mL ampule
Colour Reference Solution R2 – 2mL ampule
Colour Reference Solution R3 – 2mL ampule
Colour Reference Solution R4 – 2mL ampule
Colour Reference Solution R5 – 2mL ampule
Colour Reference Solution R6 – 2mL ampule
Colour Reference Solution R7 – 2mL ampule
Blind sample : Hydrochloric acid solution, 1% in water – 2mL ampule