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Whipple Grid
Whipple Grid 100 squares in 7mm² area (10x10 Grid), centre square further divided into 5 x 5 grid. 10mm² area version also available.
NE29
£71.05 - £90.68
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Originally designed for water particle analysis, it can be used for other aspects of particle counting. Ratio of full square to smallest is 50:1. Area Ratio is 1200:1
Please note that we also manufacture a version of the NE29 with a 10mm x 10mm grid of 1mm squares - please enquire to sales@graticulesoptics.com for this version.
0.015mm +/-0.003mm & 0.020mm +/-0.003mm CL
Soda Lime 1.5mm thick
+/-0.010mm
+0/-0.1mm
Correct reading through glass