This short video provides viewers with an overview and short summary on Refractive Index and Brix Standards​.

Firstly, to either identify or confirm the identity of a sample by comparing its refractive index to known values. Such known values can be derived experimentally, taken from the technical or scientific literature, or obtained from the manufacturer of the liquid. Secondly, Refractive index may be used to assess the purity of a sample by comparing the refractive index of the sample to the known value for the pure substance. Thirdly, Refractive index can be expressed in BRIX values for the measurement of the sugar content of sugar rich samples such as jams, jellies, syrups and fruit juices. The BRIX value correlates to the sugar concentration in the sample measured and is expressed as the number of grams of sucrose in 100 grams of sucrose/water solution. The relationship between the refractive index and BRIX is determined by the International Commission for Uniform Methods of Sugar Analysis (ICUMSA). Samples that have multiple ingredients such as salts and sugars such as (liquid sauces like soya sauce) can be measured for total percentage concentration of these substances using refractive index. The value can be expressed as BRIX or refractive index and the BRIX value can be read and interpreted as the total concentration of dissolved materials in the sample.

Reagecon’s standards fall into 4 different classifications. To start with, we have Brix Standards which are comprised of ICUMSA compliant and ICUMSA non-compliant standards. Both categories are available in many different values, but differ in that the guidelines from ICUMSA, states that no preservatives can be added to Brix Standards, so as a result these products have a shorter shelf life. Our range of ICUMSA compliant Brix Standards are also ISO 17034 accredited. These standards have a shelf life of 12 weeks as opposed to 6 weeks from our competitors, and the non ICUMSA compliant standards have a shelf life of 12 months. All of the standards in both categories are expressed in Brix units.

More detailed technical information and specific product information on Refractive Index and Brix Standards​ can be obtained at by visiting:

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Reagecon’s Knowledge Centre:

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