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English: Figure 15. Powder-handling enclosure. For a number of years, equipment manufacturers have offered ventilated enclosures specifically for weighing and manipulating small quantities of dry powders. These were first developed and marketed to the pharmaceutical industry, but they are now sold as general purpose powder-handling enclosures. Systems can be self-contained, with their own fan and HEPA filtration unit, or connected to a central exhaust system. The exhaust can be ducted to the outside or recirculated into the room. One advantage of these devices is that they operate at much lower flow rates and velocities than the chemical hoods. The internal turbulence is reduced significantly, lessening the potential for loss or ejection of the nanomaterial.
Date
Source General Safe Practices for Working with Engineered Nanomaterials in Research Laboratories (in en-us). U.S. National Institute for Occupational Safety and Health pp. 27–28 (May 2012). Retrieved on 2017-03-05.
Author U.S. National Institute for Occupational Safety and Health
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: General Safe Practices for Working with Engineered Nanomaterials in Research Laboratories.pdf
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This image is a work of the National Institute for Occupational Safety and Health, part of the Centers for Disease Control and Prevention in the United States Department of Health and Human Services, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain.

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May 2012

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Date/TimeThumbnailDimensionsUserComment
current00:00, 18 March 2017Thumbnail for version as of 00:00, 18 March 2017863 × 641 (572 KB)John P. Sadowski (NIOSH)User created page with UploadWizard

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