Washington Mills North Grafton, Inc. services

Ro-tap Shaking Sieve Analysis Instrument ; W.S. Tyler RX-29 Ro-Tap Measures Particle Size: Macro Grits 4 - 240 grit (~ 3500 - 45 microns) Sieve analysis measures the particle size of dry grains and powders by measuring the weight of the particles that pass through a group of sieves. It is used to measure particle size of material that is larger than 45 microns. Our particle size analysis instrument is an automated Ro-tap shaking sieve machine.

Total and Free Carbon; Washington Mills tests for total Carbon using our Leco C-200 Carbon Analyzer for various products including silicon carbide.  Free Carbon testing is done using the combustion method for silicon carbide samples.