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ASTM-D1747:2009 Edition

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D1747-09 Standard Test Method for Refractive Index of Viscous Materials

Published By Publication Date Number of Pages
ASTM 2009 6
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ASTM D1747-09

Historical Standard: Standard Test Method for Refractive Index of Viscous Materials

ASTM D1747

Scope

1.1 This test method covers the measurement of refractive indexes, accurate to two units in the fourth decimal place, of transparent and light-colored viscous hydrocarbon liquids and melted solids that have refractive indexes in the range between 1.33 and 1.60, and at temperatures from 80 to 100°C. Temperatures lower than 80°C can be used provided that the melting point of the sample is at least 10°C below the test temperature.

1.2 This test method is not applicable, within the accuracy stated, to liquids having colors darker than ASTM Color No. 4, ASTM color as determined by Test Method D1500, to liquids which smoke or vaporize readily at the test temperature, or to solids melting within 10°C of the test temperature.

Note 1—The instrument can be successfully used for refractive indices above 1.60; but since certified liquid standards for ranges above 1.60 are not yet available, the accuracy of measurement under these conditions has not been evaluated.

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 WarningMercury has been designated by EPA and many state agencies as a hazardous material that can cause central nervous system, kidney, and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury-containing products. See the applicable product Material Safety Data Sheet (MSDS) for details and EPAs website (http://www.epa.gov/mercury/faq.htm) for additional information. Users should be aware that selling mercury or mercury-containing products, or both, in your state may be prohibited by state law.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

oils; purity; refractive index; refractometer; wax; Composition analysis–petroleum products; Hydrocarbons; Refractive index; Viscous liquids/materials

ICS Code

ICS Number Code 17.180.30 (Optical measuring instruments)

DOI: 10.1520/D1747-09

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Terminology
Summary of Test Method
2 Significance and Use
Apparatus
Solvents
Reference Standards
Sample
Preparation of Apparatus
TABLE 1
3 Standardization with Reference Liquids
Procedure
4 Calculation and Reporting
Precision and Bias
Keywords
X1. FACTORS THAT AFFECT PRECISION AND ACCURACY
X1.1 Temperature
X1.2 Wavelength (Light Source)
5 X2. INSTRUMENT CALIBRATION
X2.1
X2.2
X2.3
X2.4
X2.5
X2.6
X3. REFLECTED VERSUS TRANSMITTED LIGHT
X3.1
X3.2
6 X4. GUIDELINES FOR QUALITY CONTROL
X4.1
X4.2
X4.3
X4.4
X4.5
X4.6
ASTM-D1747
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