Standard Test Method for the Automated Determination of Refractive Index of Glass Samples Using the Oil Immersion Method and a Phase Contrast Microscope

Published by	Publication Date	Number of Pages
ASTM	10/01/2019	4

Category: ASTM

Description

ASTM E1967 – Standard Test Method for the Automated Determination of Refractive Index of Glass Samples Using the Oil Immersion Method and a Phase Contrast Microscope

1.1 This test method covers a procedure for measuring and comparing the refractive index (η) at a fixed wavelength (λ) and temperature (T) ( Equation E1967-19_1 ) of glass from known sources to recovered fragments from a questioned source.