NGM1 eyepiece reticles, Mertz

The Mertz Graticule (36 Points) - NGM1Used to estimate the three-dimensional surface areas or the surface density of a component in a given volume, when the component does not have a random orientation. It comprises a test system with parallel curved lines used for measuring the intersection of points.PatternDescriptionDiameterProductNGM1Mertz for Stereology.Surface chrome image.16mmEMS68035-1619mmEMS68035-1921mm

The Mertz Graticule (36 Points) - NGM1

Used to estimate the three-dimensional surface areas or the surface density of a component in a given volume, when the component does not have a random orientation. It comprises a test system with parallel curved lines used for measuring the intersection of points.

Pattern Description Diameter Product
NGM1 Mertz for Stereology.
Surface chrome image.
16mm EMS68035-16
19mm EMS68035-19
21mm EMS68035-21

In this simplest form, stereology is the science where information about a three dimensional object is obtained from only a two-dimensional section of that structure.

Measurements are usually made with these graticules in the following manner:

  1. An adequate representation of sections of a specimen is obtained.
  2. The graticule is superimposed upon the specimen (or micrograph/projected image of the section).
  3. Finally, the interaction between the superimposed graticule and the test sections are recorded.

An overall introduction is given by: L.B. Brianrty. "Stereology: Methods for Quantitative Light and Electron Microscopy."

Reference

  • W.A. Mertz. "Mikroskopic" Vol. 22 1967 pp 132-142.

Code Title Diameter Pack Size Availability Price Updated: 24-04-2024
EMS68035-16 NGM1 eyepiece reticles, Mertz 16mm Each See above $379.00 AUD
EMS68035-19 NGM1 eyepiece reticles, Mertz 19mm Each See above $379.00 AUD
EMS68035-21 NGM1 eyepiece reticles, Mertz 21mm Each See above $379.00 AUD