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Refractive Index of Petroleum Products

Refractive Index of Petroleum Products
Test Method
Refractive index is a fundamental physical property that is used in conjunction with other properties to characterize pure hydrocarbons and their mixtures. It is a useful property for concentration measurements, purity determinations and chemical identification.

Automatic Petroleum Refractometer
Conforms to ASTM D1218, D1747 and D5006 test specifications

Electronic heating and cooling Peltier system eliminates the need for a circulating water bath

Automated and precise refractive index measurements

Rugged sapphire prism

Designed for samples ranging from clear to highly colored, dark and opaque

Clear graphical LCD display with on-screen instructions and full menu operation

Multipoint calibration routines maximize accuracy

RS232C and centronics communication ports

Specifications
Measurement Scales:
Refractive Index (RI)
BRIX (% sucrose)
Temperature Corrected RI
Temperature Corrected BRIX
Ten User-Programmable Scales
Illumination: 589nm light emitting diode with interference filter (estimated life: 100,000 hrs)
Range:
Dissolved Solids: 0 to 95% solids
Refractive Index: 1.29000 to 1.70000nD (nD - Sodium D-Line Refractive Index)
Readability:
Standard Mode: 0.1% Solids 0.0001nD
Extended Mode: 0.01% Solids 0.00001nD
Precision:
Standard Mode: ±0.02% Solids ± 0.00002nD
Extended Display Mode: Refractive Index Standard Oils ± 0.00002 Typical clear aqueous samples, % Solids Temperature Compensated, as sucrose ±0.02%
Calibration Fluid: refractive index standard oil, NIST traceable nominal value 1.495 RI, 67.61 BRIX
Sample Types: Transparent, translucent or opaque
Prism Assembly: Stainless steel, synthetic sapphire sealed with solvent-resistant epoxy
Calibration:
1 point - Water only
2 point - Water and refractive index or Brix standard