S84 HSE/NPL Test Slide Band 5

Phase contrast test slide for checking resolution of microscopes used for asbestos analysis.
Suitable for use with the Nikon E200 Microscope for asbestos fibre counting.

Fully certified

This test slide is made in the UK under license from the National Physical Laboratory. The purpose of the slide is to provide a standard means to check the performance of phase microscopes prior to the analysis of asbestos. The pattern consists of seven bands of twenty lines with widths ranging from 0.25 microns to 1.1 microns. This slide is the band 5 (green) version where microscopes need to be able to fully view band 5 and partially view band 6. This slide could also be used for band 4 (red) checking.
Each slide is fully tested and approved by the Health & Safety Laboratory, and issued with a certificate.

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The HSE/NPL test slide contains six sets of line gratings with varying widths. This slide is designed to test the resolution of the objectives in your microscope system.

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