Graticules, Stage Micrometers, and Calibration Standards


Eyepiece Graticules (continued) Pharmaceutical PSA Pattern — G57


This graticule was designed for the pharmaceutical industry. However, it is also useful where particle size considerations are restricted to 10mm and 25mm. Dots and circles give quick references for these two sizes. In addition a scale is incorporated.


The microscope must be calibrated when ordering this graticule, such that the circle must equate to 1mm on the microscope stage.


Reference: The United State Pharmaceutical Conventions Inc. Pharmaceutical Forum Vol. 19 No 6.


Pattern G57


Description


Pharmaceutical PSA Pattern . Glass sandwich.


Dia. 19mm Cat.#


20.4mm 68091-20.4 21mm 23mm


68091-19 68091-21


24.5mm 68091-24.5 25mm 26mm 27mm


68091-23 68091-25


68091-26 68091-27


Counting Pattern — NG14 Simple counting for geological and soil analysis.


Reference: L.G. Briarty. "Stereology: Methods for Quantitative Light and Electron Microscopy." Sci. Prog. Oxf. 1975 62; 1-32. Pattern


Description NG14


Counting pattern for soil analysis, 10mm square.


Surface chrome image.


Lennox Grain Analysis — NG21 Simple counting for geological and soil analysis.


Reference: L.G. Briarty. "Stereology: Methods for Quantitative Light and Electron Microscopy." Sci. Prog. Oxf. 1975 62; 1-32. Pattern


Description NG21 Lennox for Grain analysis Dia.


16mm 19mm 21mm 23mm Custom


Cat.#


68004-16 68004-19 68004-21 68004-23 68004-50


Dia.


16mm 19mm 21mm


Cat.#


68092-16 68092-19 68092-21


28


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