Certificate Of Analysis Product Calendula Oil “KE” Lot No. K – 4147 – KE - 2011 Manufactured Date Feb 2011 Best Before Feb 2013 Appearance Fluid liquid Colour Yellow colour Odour Typical Tegetone flowery top note Physico-Chemical Properties:- Specific Gravity 0.910 to 0.925 Optical Rotation Slightly Dextrorotatory t0 +5 Refractive Index 1.4870 to 1.504 Peroxides Value 0.5 meq.