Color Reference Solutions

The kit contains a set of seven brownish yellow color reference standards (identified sequentially from BY1 to BY7) and a 3.7% hydrogen chloride solution in water. The solutions are produced from three primary metal salt solutions of ferric(III) chloride, cobalt(II) chloride, and copper(II) sulfate pentahydrate, in accordance with chapter 2.2.2 ′Degree of colouration of liquids′ of the European Pharmacopoeia (Ph. Eur.).

The reference standards are used as calibration and/or quality control standards to measure the degree of coloration of liquids in the brown-yellow-red color range.

This is a set of the following color reference solutions according to PhEur:

• Colour Reference Solution BY1 - 2mL ampule
• Colour Reference Solution BY2 - 2mL ampule
• Colour Reference Solution BY3 - 2mL ampule
• Colour Reference Solution BY4 - 2mL ampule
• Colour Reference Solution BY5 - 2mL ampule
• Colour Reference Solution BY6 - 2mL ampule
• Colour Reference Solution BY7 - 2mL ampule
• Blind sample : Hydrochloric acid solution, 3.7% in water - 2mL ampule