Whitehouse Sieve Standards No.635 (20 micrometer)

Whitehouse Sieve Standards No. 635 (20 Micrometer)

Whitehouse Sieve Standards offer an efficient solution for calibrating No. 6 (3.35mm) and finer sieves with full traceability to NIST. Perform calibrations in minutes without the need to ship sieves away or take them out of service. Regular checks help determine when sieves need replacement. Each set includes five single-use vials of precision glass beads, designed for a specific sieve size. Use one vial for 8in or 200mm sieves, and two to five vials for sieves up to 18in or 450mm in diameter. The average aperture can be quickly determined using the included calibration graph.

Whitehouse is a trusted producer of standards, selected by the Community Bureau of Reference (BCR) for the European Community. All Whitehouse Sieve Standards are traceable to NIST, NPL, and BCR. The highly spherical beads are made from soda-lime glass with a specific gravity of 2.45 and are certified for size using electroformed sieves, with additional verification through microscopy and image analysis.

The No. 635 (20µm) Whitehouse Sieve Standards come with five vials, each containing 0.8g of glass beads.

Key Features:

• Perfect for calibrating and testing No. 635 (20µm) sieves
• Manufactured with NIST-traceable technology
• Fast aperture readings using the supplied calibration graph

What's Included:

• No. 635 (20µm) Whitehouse Sieve Standards
• Calibration graph for precise aperture readings

Specifications:

• Mesh Opening Size: No. 635 (20µm)
• Weight per Vial: 0.8g
• Vials per Set: 5