New Walton & Beckett G22 Microscope Reticle (21mm diameter), specifically designed for ACM, particle, and fiber analysis using a 40x objective lens (calibration factor of 4). Ideal for identifying and counting fibers with a length-to-width ratio of 3:1 or greater – such as ACM, glass, and other fibrous dust.
This listing includes:
• 1x G22 Walton & Beckett Eyepiece Reticle
• 1x 23mm Retaining C-Ring for secure fitment
Key Features:
• Designed for ACM and short fiber analysis (typically <5 microns)
• Features a circle divided into four quadrants with micron-scaled lines (5 & 3μm)
• Includes comparison shapes for accurate fiber identification
• Fully compatible with NMAM Method 7400
• Diameter: 21mm – fits most standard eyepieces
What is G22?
The "G22" is a specialized version of the Walton & Beckett graticule, tailored for precise fiber counting in regulated environments. Perfect for laboratories, industrial hygiene professionals, and ACM monitoring.
Need a different size or custom configuration?
We accept custom orders! Just message us with your microscope make/model, and we can list a reticle specifically for your needs.