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Prices are current as of Tuesday, 24/11/2020.
Prices shown are in AUD and GST exclusive. Tax is added at checkout.

AU $342.00
Availability: Backorder
Product Code: S01A26062

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This reticle is used for counting fibrous dust, (e.g. asbestos or glass fibres) and is most useful where the majority of the fibres are smaller than 5 microns. The circle is divided into four by two diametrical lines scaled in units of 5 and 3 Micrometre respectively. Unlike the usual globes of other partial reticles, Walton and Beckett's has a series of shapes for comparison. These shapes have been designed for comparison with fibres, especially since they incorporate an aspect ratio of 3:1 essential for such analysis. 

Important: for accurate work the counting field circle on this reticle must represent 100Micrometre at the microscope stage. It is essential that the G22 suits a particular instrument and its configuration. 

When ordering a G22 reticle be sure to give details of your microscope, eyepiece, objective magnifications, and an exact calibration factor.

Ref. Walton and Beckett, Ann. Occup. Hyg. Vol.20, 1977, pp. 19-23

A microscope eyepiece reticle for the evaluation of fibrous dusts.


Orders with items in stock are packed within 24 hours. We ship with our best choice of courier, depending on goods ordered and shipping address provided.


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4-10 business days

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6-14 business days

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5-14 business days

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Standard shipping is $15 in Australia (free on orders over $200). Add $5 to ship Express (under 2kg only)


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11 Carlton Street, Kirwan


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