European Pharmacopoeia Standard Solution BY (Brownish Yellow)

This CRM has been manufactured and tested using a sample of this lot taken at the time of manufacture. The spectral
characteristics of the sample were recorded in a 10 mm cell between 380nm and 780nm using an Agilent Cary 4000 UVVis
spectrophotometer in accordance with Ph. Eur. 2.2.2. Method III. The tristimulus and L*a*b* values reported were
calculated from this data according to the Ph. Eur. and ASTM E308, using Illuminant C and the CIE 1931 Standard (2°)
Observer. The above is also in accordance with British Pharmacopoeia 2.2.2 Method III. Spectroscopic measurements
were taken with an ambient lab temperature between 20 – 24 °C.