Refractive Index values are calculated from a data fit of empirical results,
which is valid over the range 10 to 75°C (older batches are valid only
from 20°C to 75°C). The values used to determine this relationship
were produced from a statistical evaluation of averaged refractive index data
measured on a high accuracy refractometer at 589.3nm. °Brix values are
equivalent scale values in accordance with the relationship between Refractive
Index and °Brix published by ICUMSA. Refractive Index and °Brix values
will only be displayed if the temperature is within the stated range.
Note: Results derived from these calculations at any temperature other
than 20.0°C are outside the scope of Bellingham + Stanley Ltd.'s UKAS Calibration
Accreditation. °Brix values greater then 85.00 are extrapolated from the
relationship given in ICUMSA SPS-3 (2000) Equation 2. BSDD oil batches do not
have °Brix values due to the high refractive index of these samples.