Graticules, Stage Micrometers, and Calibration Standards
Eyepiece Graticules (continued) Miller Squares — NE57
The ratio of large to small squares is 9:1. Originally designed for hematology, they can be utilized for rapid counting of any evenly spread field of particle.
References:
1. American J. of Clin. Pathol. Vol.20, 1950, page 1079. “Time Saving Device For Counting Reticulocyte.”
G.Brescher and Schneiderman.
2. Practicle Haemotology – J.D. Dacy. Published by J.A. Churchill. 2nd Edition 1956 page 25.
Pattern NE57
Description Miller 7 x 7mm grid. Glass sandwich. Dia.
16mm 19mm
Cat.#
68020-16 68020-19
20.4mm 68020-20.4 21mm 23mm
68020-21 68020-23
24.5mm 68020-24.5 25mm 26mm 27mm
68020-25 68020-26 68020-27
Whipple Grid — NE29
Originally designed for water particle analysis, but may be used for other aspects of particle counting. Grid showed: Ratio of full square to smallest is 50:1. Area is 2500:1.
Reference: Microscopy of Drinking Water. Pattern
Description NE29 Dia.
Whipple grid 100 squares in 7mm area. 16mm Surface chrome image.
19mm Cat.#
68009-16 68009-19
20.4mm 68009-20.4 21mm 23mm
68009-21 68009-23
24.5mm 68009-24.5 25mm 26mm 27mm
68009-25 68009-26 68009-27
Half Protractor NE25,
see page 23
22
Electron Microscopy Sciences In PA: (215) 412-8400 • Toll-Free (800) 523-5874 Fax (215) 412-8450 or 8452 • email:
info@emsdiasum.com
or
stacie@ems-secure.com • www.emsdiasu
m.com
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52
