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You are here: Home / Archives for News

Digital Refractometer, Rudolph Research J47 Press Release

Digital Refractometer - J47

Rugged Refractometer, New from Rudolph Research; The J47 is Temperature correcting, and designed for the Sugar and Food Industries. Very fast measurement. Simple to load, simple to measure, simple to clean. Result independent of operator judgment. Rugged, reliable, and perfect for high throughput applications in the sugar and food industries. Accurate, on-board temperature correction. Lower […]

Filed Under: News, Press Releases Tagged With: ABBE, benchtop, beverage, Brix, chemical, cosmetics, digital, essential oils, flavor, food, laboratory, oil, petro chemicals, petroleum, pharmacuetical, R/I, refractive index, refractometer, refractometers, sugar

Refractometers, Polarimeters, and Density Meter Service & Maintenance Programs

Refractometers, Polarimeters, and Density Meter Service & Maintenance Programs Whether you buy a Refractometer, Poalrimeter, Density Meter, Saccharimeter, or automated system, we protect your investment by providing exceptional service, for over 30 years. Even though many laboratory instrument manufacturers stop servicing their equipment after just 10 years, Rudolph Research Analytical is still servicing instruments built […]

Filed Under: News, Press Releases Tagged With: Brix, calibration, density-meters, NIST, Optical Rotation, polarimeters, R/I, refractive index, refractometers, saccharimeters, service, Specific Rotation

Refractometers: Innovating Around the Edges

Refractometers are analytical instruments that measure the refractive index (RI) of liquids.

Filed Under: News, White Papers Tagged With: Brix, digital, electronic, laboratory, R/I, refractive index, refractometer, refractometers

API Gravity – Petroleum – Digital Density Meter Application Note

API Gravity – Density Meter Application Report Understanding API Gravity: API Gravity – Crude oil is an indispensable starting material for all types of products and various other fuels, oils, and lubricants. Characterization of these products is most complex and often impractical. Therefore, the measurements of more simple properties such as flash point, vapor pressure, […]

Filed Under: White Papers Tagged With: API Gravity, ASTM D1250, ASTM D4052, ASTM D5002, ASTM D5931, Density Meter, DIN 51 757, ISO 12185, measure API Gravity, petro chemicals, petroleum

Density Meter Application Note, Concentrations

DDM Density Meter S4

Density Meter Application Report Concentration Determinations using the Rudolph Research Analytical DDM 2911 Density Meter Introduction From purely an intuitive approach, it is easy to understand how a density meter can determine concentrations. If you were to measure the density of a pure water sample, you would find its density to be 0.9982 g/cm³ at […]

Filed Under: White Papers Tagged With: alcohol, API, ASTM D1250, ASTM D4052, ASTM D5002, ASTM D5931, Automatic, benchtop, Brix, calibration, concentration, density, Density Meter, density-meters, digital, DIN 51 757, essential oils, European Pharmacopoeia 5.0, Molarity, Normality, ºBalling, ºPlato, percent by weight or volume, petro chemicals, petroleum, pharmacuetical, PPM, Specific Gravity, USP29, USP29-NF24

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  • Home
  • Products
    • Density Meters
      • DENSITY METER – PORTABLE DDM29
      • Density Meter DDM 2909
      • Density Meter DDM 2910
      • Density Meter DDM 2911
      • Density Meter DDM 2911 PLUS
      • Density Meter Sample Loading Options
      • Back
    • Refractometers
      • REFRACTOMETER – PORTABLE J27
      • J47
      • J57 VT
      • J157 PLUS
      • J257
      • J357
      • J457
      • Contact Lens Refractometers
      • Back
    • Polarimeters
      • Autopol I
      • Autopol II
      • Autopol III
      • Autopol IV
      • Autopol V
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      • Back
    • Saccharimeters
      • Autopol IZ & IIZ Saccharimeters
      • Saccharimeter Autopol 589
      • Digital Saccharimeter Autopol 880 & 880T
      • Saccharimeter Autopol 880 PLUS & 880T PLUS
      • Saccharimeter Sample Cells
      • Saccharimeter Specifications
      • Back
    • Automation
      • Autoflex® R817
      • AutoFlex® R827
      • AutoFlex® R837
      • Back
    • AlcoTest-RI®
      • Distillery Financing
      • Back
    • VeriLinkRx Hospital Drug Diversion
    • Octapol®
      • Octapol®
      • Octapol® Red
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      • Back
    • Rudolph Standards Lab
    • Back
  • Resources
    • Service + Maintenance
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  • Quality – Accreditations
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