KEY INFORMATION e 1469 1.740 1.522 1.471 1.412 1.456 1.370 1.498 1.326 1.357 1.359 index * * *

20 90 0 100 10

R Refractive 0 to 8 4 to 13 5 to 15 % Brix 11 to 18 14 to 19 42 to 68 52 to 68 60 to 70 * * *

1.010 1.020 1.000 1.070 1.060

81150-06 25°C 25°C 20°C 20°C 20°C 25°C 25°C 25°C 25°C 25°C Temperature * * * 2 4 0

32 30

Apples Oranges 81150-20 Cutting oils Sample fluid Condensed milk Jams and jellies and Concentrated juices Ethanol Olive oil Palm oil Acetone Benzene Methanol Carbonated beverages Paraffin oil Acetic acid Sample fluid Methyl iodide Methyl salicylate Common Refractive Indexes: readings are temperature-dependent. shows the concentration Scale shows the The % Brix content of the soluble solids percentage The soluble of a sample (water solution). total of all the solids solids content is the beginning with dissolved in the water, salts, protein, acids, etc.; the , value is the value of measurement reading The Brix scale is the sum total of those. of grams of cane calibrated to the number When g of water. sugar contained in 100 the % Brix measuring a sugar solution, match the reading should perfectly actual concentration.

Introduction / Handheld Introduction

Price No No No No No No ATC 50 to 86°F (10 to 30°C) 50 to 86°F (10 to 30°C) 50 to 86°F (10 to 30°C) † ±0.2% ±1.0 ppt; Accuracy ±0.1% Brix ±0.2% Brix ±0.2% Brix ±0.2% Brix ±0.3% Brix ±0.5% Brix ±0.15% Brix ±0.001 SGU † 0.2% 1.0 ppt; 0.2% Brix 0.2% Brix 0.2% Brix 0.2% Brix 0.5% Brix 1.0% Brix 0.1% Brix Resolution 0.001 SGU † Canada 800-363-5900 • India 91-22-6716-2222 • UK 0500-345-300 calibration NIST-traceable TW-17105-00 with data for refractometers Range 0 to 18% Brix 0 to 32% Brix 0 to 32% Brix 0 to 10% Brix 28 to 62% Brix 45 to 82% Brix 58 to 90% Brix 0 to 28% salinity 1.000 to 1.070 SGU 0 to 100 ppt salinity; US Toll-free: 800-323-4340 • Outside the US: 1-847-549-7600 • www.coleparmer.com 800-323-4340 • Outside the US: 1-847-549-7600 • www.coleparmer.com US Toll-free: TW-81150-14 TW-81150-20 TW-81150-22 TW-81150-04 TW-81150-06 TW-81150-08 TW-81150-10 TW-81150-12 TW-81150-02 Salt refractometers Brix refractometers Catalog number SGU = specific gravity units NIST-traceable calibration with data for refractometers NIST-traceable TW-17105-00 Low-Cost Brix and Brix Salt Refractometers Low-Cost Durable units provide quick and easy measurements How a Works How a Refractometer of concentrations used for measuring is a simple instrument A refractometer used throughout requires only a few drops of liquid, and is aqueous solutions. It chemical, and manufacturing industries. the food, agricultural, Refractometers it changes direction; this is called refraction. When light enters a liquid the angle of refraction. to which the light changes direction, called measure the degree to refractive index the refraction angles and correlates them A refractometer takes can determine the been established. Using these values, you (nD) values that have refractive indexes For example, solutions have different concentrations of solutions. depending on their concentration. the solution. has a greater refractive index than The prism in the refractometer meet. With at the point where the prism and solution Measurements are read a low concentration solution, the prism the refractive index of that of is much greater than a large the sample, creating refraction angle and a low reading (“A” on diagram). The reverse would happen with a high concentration solution (“B” on diagram). Tech Insights Tech † Use these economical refractometers to take quick and easy measurements. Use these economical refractometers to take a zero adjustment screw for calibration. Refractometers feature adjustable focus and Each refractometer is calibrated and adjusted to read at 68°F (20°C). Models with where the are ideal for applications automatic temperature compensation (ATC) temperatures of your samples vary. grips. Refractometers are made of corrosion-resistant brass and have rubber-insulated and instructions. Include hard case, calibration screwdriver, Brix Refractometers measure soluble solid concentration of , salts, proteins, and measure more in foods and liquids—ideal for quality control and R & D applications. Use to liquids. percent Brix of juices, beverages, and other sugar-based Salt Refractometers measure salt content in parts per thousand (ppt) and specific gravity or depending on model. Use to measure salt concentration of water or brine. percent salinity,