Product Description

This set contains one of each of RI 1.550, 1.605, 1.640, 1.670, 1.580 and 1.700 for the identification of asbestos fibres (7.4ml size). Refractive Indices are stated for Refractive Index liquids at 25oC, illuminated by 589.3 nms/5893 angstroms sodium light.