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Stage Graticules
These stage graticules are intended for the routine calibration of eyepiece patterns, particularly when alternating between objectives on one microscope, or when using the same graticule in different microscopes. Their robust construction makes them ideal for student use and for instructional purposes. The scale or grid is centered on a glass disc mounted in a black anodized aluminum slide 75mm x 24mm x 2mm thick. For applications requiring traceable standards, see B. Stage Calibration Standards.
- Transmitted light
- Reflected light, as is used with metallurgical microscopes
Table 1: Accuracy and Line Widths of Stage Micrometers
| Pattern | Line Width | Accuracy (overall) | Pattern | Line Width | Accuracy (overall) |
| S1 or PS1 | 0.005mm | ± 0.002mm | S16 or PS16 | 0.0015mm | ± 0.001mm |
| S2 | 0.005mm | ± 0.00015mm | S20 or 21 | 0.0025mm | ± 0.0015mm |
| S4 or PS4 S5 or PS5 |
0.002mm | ± 0.0001" | S22 | 0.0025mm | ± 0.0015mm |
| S8 or PS8 | 0.002mm | ± 0.001mm | S48 | 0.0027mm | ± 0.001mm |
| S11 | 0.001mm | ± 0.00005" | S78 or PS78 | 0.003mm | ± 0.001mm |
| S12 or PS12 | 0.001mm | ± 0.001mm | — | — | — |
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Sedgewick Rafter and Cover Glass – S50, S51, S52
For use in water analysis, culture inspection, or where particles per unit volume needs to be determined.
| Cat # | Description | Pack | Price | Quote | Quantity | |
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| Cat #: 68050-50 | Description: S50 Sedgewick Rafter | Pack: Each | Price: $64.50 |
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| Cat #: 68050-52 | Description: S52 Sedgewick Rafter | Pack: Each | Price: $315.00 |
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| Cat #: 68050-51 | Description: S51 Cover Glass | Pack: Each | Price: $19.00 |
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Howard
Glass slide with a central circular island used for counting mold fibers and spores in fruit juices, especially from tomatoes. Coverglass removes the necessity of precise adjustment of the microscope and eyepiece graticule.
| Cat # | Description | Pack | Price | Quote | Quantity | |
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| Cat #: 68051-60 | Description: Howard Cell For Fruit Juices | Pack: Each | Price: $420.00 |
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| Cat #: 68051-20 | Description: K20 Calibrated Cover Glass | Pack: Each | Price: $123.00 |
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The England Finder – S7
Easily record the location of a field. Glass slide marked with a square grid at 1mm intervals. Each square contains a center ring bearing reference letters and numbers and is subdivided into four segments numbered 1 to 4.
| Cat # | Description | Pack | Price | Quote | Quantity | |
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| Cat #: 68048-07 | Description: The England Finder | Pack: Each | Price: $321.00 |
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The Halton Finder – S30
Easily record the location of a field. Glass slide marked with a square grid at 1mm intervals. Each square contains a center ring bearing reference letters and numbers and is subdivided into four segments numbered 1 to 4.
| Cat # | Description | Pack | Price | Quote | Quantity | |
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| Cat #: 68049-07 | Description: The Halton Finder - S30 | Pack: Each | Price: $344.50 |
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Makler
For rapid semen analysis using grid pattern of 1mm squares and a center area subdivided into 0.1mm squares. Chamber and coverglass constructed of optically flatt glass. Quartz pins hold the coverglass for an exact specimen depth.
| Cat # | Description | Technical Doc | Pack | Price | Quote | Quantity | |
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| Cat #: 68052-01 | Description: Makler Counting Chamber | Technical Doc | Pack: Each | Price: $2,215.50 |
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