Inquiry (采购产品): Size of 420 microns I am a Plans Examiner for the city of Aurora, Colorado. I am working on a set of plans for a wood working shop. The International Building code defines "Combustible Dust" as being less than 420 micron. Usually produced by a sander or simular equipment. My delema is that I do not know what 420 microns looks like. Do you have any sample Sieve or any thing tha would help me under stand this. Thanks Berry Patton **** Hidden Message ***** W. Berry Patton 15151 E. Alameda Pky Building Division Aurora, CO 80012 USA Company: City af Aurora , Colorado Title: Plans Examiner Phone: 303-739-7614 Fax: 303-739-7551 E-mail: bpatton@auroragov.org **** Hidden Message ***** bpatton@auroragov.org
