Backscattered electron detector calibration standards
An electron microscope has the capacity to produce images in which contrast is controlled by t...
Gold particles on carbon film
This high resolution TEM test specimen is an arrangement of finely-dispersed thin gold particl...
Duplex reference specimen
An alternative and very sensitive test is by means of an alloy with two major Copper/Zinc phas...
Polystyrene latex suspension, 0.312um
Uniform polystyrene latex (size 0.204µm) is suspended on a Formvar/Carbon grid and is useful f...
Fluorescent ruler
Fluorescent Scale in inches and centimetres. This metric/english plastic ruler is printed with...
Glass scales for stereo viewers
A transparent glass plate well polished and marked by the photo-printing technique. It provide...
Measure for measure book
At last, a GREAT Conversion Factor Handbook! THE conversion factor handbook - 864 ...
Micrometers
Metric and English scale micrometers with friction stop; comes in a padded plastic case.
