Non-standard paneled noise enclosures for swagger machine noise control. These paneled noise enclosures were constructed of two-inch acoustic foam with embossed 18 ga. aluminum outer walls for swagger machine noise attenuation application. The project included seven...
Donaldson Torit DFE 3-6 weld fume collector University maintenance departments must be equipped with all facets of repair equipment to keep all building systems functioning as designed. A regional University updated its welding/metal shop with smoke and fume...
When reviewing fan performance information from a fan selection program, critical fan sound data measured in sound pressure levels (dBA) is often overlooked. And a program input value that can significantly change the resulting dBA levels is the reflectivity or “Q”...
by Zachary Fausnaught | Jun 18, 2019 | Noise Control
“Fans and Dust Collectors in a Small Utility Room.” Sound is OK; noise is not! Meeting OSHA’s permissible exposure limit (PEL) at 90 dBA for 8 hours and addressing the hearing protection requirement at 85 dBA is important because noise attenuation is part of a...
“This gives us the noise relief we needed and flexibility as we grow.” A large furniture manufacturer in upstate New York installed a state-of-the-art, computer controlled planer/saw/jointer machine. As their production increased, so did the plant noise, with...
Ambient plant noise levels are under the scrutiny of OSHA as well as plant Health and Safety departments. Knowing that normal speech is almost impossible at 85-95 dBA and OSHA permissible worker exposure is 90 dBA over an 8 hour period (see Table 1) we need to select...
