Clearance, Whitehouse Sieve Stds., #7 (2.80mm), 2 Vials

The spherical beads are made from 2.45 specific gravity soda-lime glass and certified for size using electroformed sieves with checks using microscopy and image analysis. These beads provide a method of calibrating No. 6 and finer sieves with traceability to NIST. The BS-419CL meets a No. 7 (2.80mm) sieve size and includes two vials.  Each vial nominal weight is 25g.

Features:

• NIST traceable

Included Items:

• Whitehouse Sieve Standards (2 vials)