Rudolph Research Analytical
Logo
  • 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
    • Refractometers
      • REFRACTOMETER – PORTABLE J27
      • J47
      • J57 VT
      • J157 PLUS
      • J257
      • J357
      • J457
      • Contact Lens Refractometers
    • Polarimeters
      • Autopol I
      • Autopol II
      • Autopol III
      • Autopol IV
      • Autopol V
      • Autopol V PLUS
      • Autopol VI
    • Saccharimeters
      • Autopol IZ & IIZ Saccharimeters
      • Saccharimeter Autopol 589
      • Digital Saccharimeter Autopol 880 & 880T
      • Saccharimeter Autopol 880 PLUS & 880T PLUS
      • Saccharimeter Sample Cells
      • Saccharimeter Specifications
    • Automation
      • Autoflex® R817
      • AutoFlex® R827
      • AutoFlex® R837
    • AlcoTest-RI®
      • Distillery Financing
    • VeriLinkRx Hospital Drug Diversion
    • Octapol®
      • Octapol®
      • Octapol® Red
      • Octapol® Black
    • Rudolph Standards Lab
  • Resources
    • Service + Maintenance
    • White Papers
    • Videos
    • Technical Bulletins
    • Definitions
  • Quality – Accreditations
  • Testimonials
  • Rudolph Research – General Info
    • About Us
    • Articles
    • Trade Shows
    • Press Releases
    • Service + Maintenance
    • Customers/Industries
  • Contact Us
    • Distributor Locator
    • Contact Service
    • Part Order/Quote Request
    • Request Information
    • Rudolph Brazil
    • Rudolph Germany
    • Rudolph Japan
    • Rudolph Turkey
    • Careers
  • Videos
  • Rudolph Standards Lab
  • Shop
    • Cart

White Papers

White Papers

DDM2911

Measuring Alcohol Concentration – Alcohol Proof Testing

Measuring Alcohol Concentration for Alcohol Proof by measuring the Density of Alcohol Alcohol Concentration Determination...
Read More

Refractometer Temperature Correction Vs Control

Refractometer Temperature Correction & Control Peter Marriott – Refractometer Product Manager Rudolph Research Analytical Also...
Read More

Digital Refractometers – Universal Concentration Meters

Digital Refractometers – Universal Concentration Meters By Angelo DePalma, Ph.D – Partial Reprint – Originally Published April 6th, 2011, ...
Read More

Refractometers: Innovating Around the Edges

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

API Gravity – Petroleum – Digital Density Meter Application Note

API Gravity – Density Meter Application Report Understanding API Gravity: API Gravity – Crude oil...
Read More
DDM Density Meter S4

Density Meter Application Note, Concentrations

Density Meter Application Report Concentration Determinations using the Rudolph Research Analytical DDM 2911 Density Meter...
Read More
  • 1
  • 2
  • 3
  • 4

Automation White Papers

  • UAN Fertilizer Concentration Analysis – Measure RI & Density for % Concentration
More »


Refractometer White Papers

  • J57/J157AB Refractometer Measurement of Urea Concentration for Diesel Engine Additives
  • Automobile Industry Refractometer Options Package
  • Measurement of Concentration Dependence of Refractive Index to Confirm Gel Permeation Chromatography Parameter
  • Measurement of Concentration Dependence of Refractive Index to Enhance Gel Permeation Chromatography for Polymer Characterization
  • Refractometer Temperature Boost Option
  • Ultra Low Volume Refractometer
  • Refractometer Validation
  • UAN Fertilizer Concentration Analysis – Measure RI & Density for % Concentration
  • J157HA-BUTYRO Refractometer
  • Refractive Index for Particle Size Analysis
More »

Filed Under: White Papers Tagged With: refractometer

Products

  • Density Meters
  • Refractometers
  • Polarimeters
  • Saccharimeters
  • Automation

Resources

  • Distributor Locator
  • Videos
  • Articles
  • White Papers
  • Technical Bulletins
  • Quality
  • Service & Maintenance

General Information

  • About Us
  • Press Releases
  • Customers/Industries

Global Distributors

Global distributors

General Inquiries

Rudolph Research Analytical
55 Newburgh Road Hackettstown, NJ, 07840 USA

Phone: 973-584-1558
Fax: 973-584-5440
info@rudolphresearch.com
  • Home
  • Products
  • Resources
  • Quality – Accreditations
  • Testimonials
  • Rudolph Research – General Info
  • Contact Us
  • Videos
  • Rudolph Standards Lab
  • Shop

Copyright © 2025 Rudolph Research Analytical

  • 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
      • Autopol V PLUS
      • Autopol VI
      • 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
      • Octapol® Black
      • Back
    • Rudolph Standards Lab
    • Back
  • Resources
    • Service + Maintenance
    • White Papers
    • Videos
    • Technical Bulletins
    • Definitions
    • Back
  • Quality – Accreditations
  • Testimonials
  • Rudolph Research – General Info
    • About Us
    • Articles
    • Trade Shows
    • Press Releases
    • Service + Maintenance
    • Customers/Industries
    • Back
  • Contact Us
    • Distributor Locator
    • Contact Service
    • Part Order/Quote Request
    • Request Information
    • Rudolph Brazil
    • Rudolph Germany
    • Rudolph Japan
    • Rudolph Turkey
    • Careers
    • Back
  • Videos
  • Rudolph Standards Lab
  • Shop
    • Cart
    • Back
  • Türkçe
  • Español
  • Deutsch