Wood Shop Dust Collection: Difference between revisions
From Pumping Station One
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== Do we produce enough dust for it to be a problem? == | == Do we produce enough dust for it to be a problem? == | ||
A single ripping cut with a thin kerf blade of 5/4 oak plank 8' long will create 10 grams of <15 micron dust. If distributed evenly throughout the shop, this would create a dust concentration of 9.1 mg/m**3, much greater than the ACGIH hardwood limit of 1.0 mg/m**3. In addition, fine dust is difficult to remove. When it finally settles, sweeping causes much of the dust to again become airborne. Vacuuming is only effective when using a fine filter. So the fine dust tends to accumulate, bringing the airborne dust levels higher and higher. | |||
Calculation: https://docs.google.com/spreadsheets/d/18togRk2AZD1RfjSE-m5PjONLy_UOMeJCfzvsSp8gQTg/edit?usp=sharing | |||
10% of dust (by volume) generated by sawing oak consists of particles smaller than 15.1 microns. | 10% of dust (by volume) generated by sawing oak consists of particles smaller than 15.1 microns. | ||
http://annhyg.oxfordjournals.org/content/44/6/455.full.pdf | http://annhyg.oxfordjournals.org/content/44/6/455.full.pdf | ||
Approximately 1/3 of this is < 10 micron. | Approximately 1/3 of this is < 10 micron. | ||
This is an interesting graph showing the distribution of particle sizes created by various woodworking operations. | |||
http://en.wikipedia.org/wiki/File:Particle_size_distribution_of_hardwood_dust.jpg | |||
== Particle Monitoring == | == Particle Monitoring == | ||
