News

Learn how to avoid the 10 most common disc polarimeter problems and improve measurement accuracy. This beginner-friendly guide covers air bubbles, dirty sample tubes, calibration, temperature effects, sample preparation, reading errors, and practical tips for obtaining consistent optical rotation measurements

Reams Biological Theory of Ionization (RBTI) uses refractometers, pH meters, and conductivity testing to evaluate biological samples. Explore its history, testing methods, the role of Brix measurements, and how to select the right refractometer for biological or food applicationss

Accurate fountain solution testing helps offset printers maintain consistent press performance. Learn how a BOSS Refractometer can help check the concentration of freshly mixed fountain solution, why readings must be calibrated to the specific concentrate, and how refractometry compares with pH and conductivity testing. Discover the limitations of testing used fountain solution and practical steps for more reliable measurements.

Brewing and Winemaking Measurement Scales Explained: Brix, Plato, Babo, KMW, Specific Gravity, Refractive Index and More Brewing beer and making wine both depend on understanding what is dissolved in a liquid. Yet brewers and winemakers encounter a confusing collection of measurement scales, including Brix, Plato, Babo, KMW, Balling, Oechsle, Baumé, specific gravity, refractive index, potential alcohol and Brewer’s Points. Although these measurements are related, they are not all the same. Some express sugar concentration by weight. Others describe a liquid’s density or its effect on light. Still others convert a measurement into an estimate of potential alcohol. Understanding these differences...

Discover how the RGM-100 Gem Refractometer measures gemstone refractive index. Follow step-by-step instructions for preparing a stone, applying contact fluid, reading the RI scale, examining double refraction, and maintaining your instrument.