Whipple Grid Graticules, Electron Microscopy Sciences – 68009-23, 23.0mm, NE29 Graticule

Description

Whipple grid Graticule NE29 23mm. Whipple grid Graticule NE29, 100 squares in 7mm area, Surface chrome image, Designed for water particle analysis, but may be used for other aspects of particle counting, Grid showed: Ratio of full square to smallest is 50:1, Area is 2500:1, Diameter: 23mm