ASTM D1807 Test Methods for Refractive Index and Specific Optical Dispersion
ASTM D1807 Standard Test Methods for Refractive Index and Specific Optical Dispersion of Electrical Insulating Liquids
8. Report
8.1 Report the following:
8.1.1 A description of the sample, such as fluid type, sample location, physical appearance, etc.
8.1.2 Refractive index, reported to the fourth decimal place, and the temperature at which the test was made.
8.1.3 Multiply the specific optical dispersion value by 10(4), and for the routine method report the result as a whole number of two or three digits. For the referee method, report the results as a three or four-digit number, the last digit occupying the first decimal place.
8.1.4 The spectral line, or lines, used in the measurements.
9. Precision and Bias
9.1 Precision:
9.1.1 The precision of the routine method for measuring refractive index and specific optical dispersion of this test method is being determined.
9.1.2 The precision of the referee method for measuring refractive index and specific optical dispersion is essentially specified in Test Method D1218.
9.2 Bias:
9.2.1 No information can be presented on the bias of the routine procedure in this test method for measuring refractive index and specific optical dispersion because no material having an accepted reference value is available.
9.2.2 The bias of the referee procedure for measuring refractive index and specific optical dispersion is essentially specified in Test Method D1218.
10. Keywords
10.1 insulating liquids; refractive index; refractometer; specific optical dispersion
