Glossary entry (derived from question below)
English term or phrase:
forced supplied air
English answer:
positive-pressure air supply
Added to glossary by
Polangmar
Dec 7, 2010 00:46
13 yrs ago
1 viewer *
English term
forced supplied air
English
Tech/Engineering
Chemistry; Chem Sci/Eng
Apply vessel entry procedures including use of forced supplied air.
Unfortunately I don't have any other context. The phrase is from this document: http://content.euphrac.eu/EuPhraC_2010-05-15_1836_E.html
Unfortunately I don't have any other context. The phrase is from this document: http://content.euphrac.eu/EuPhraC_2010-05-15_1836_E.html
Responses
| 4 +2 | positive-pressure air supply |
Polangmar
|
Change log
Dec 14, 2010 15:44: Polangmar Created KOG entry
Responses
+2
15 mins
Selected
positive-pressure air supply
It means pressure higher than the atmospheric pressure.
(3) A clean source of forced air supply is used for ventilation that does not increase the hazards in the space.
(...)
The operation is based on forced air supply into the working cabinet and then the removal of contaminated air through the two-level refining system.
http://tinyurl.com/2bozvab
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Note added at 23 mins (2010-12-07 01:09:59 GMT)
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Respiratory protection is necessary for cleaning up spills and leaks. Protect personnel from fumes by use of positive pressure air supply.
http://www.dow.com/PublishedLiterature/dh_02e9/0901b803802e9...
This product completely encapsulates the infant or toddler, securing them in an easy to transport heat protective enclosure, while maintaining safe breathing air using a positive pressure air supply.
http://www.figure8rescue.com/
Active systems using positive pressure air supply offer other benefits: Air flow out of the case will prevent dust infiltration, and remove built up heat and off-gassing. Both positive pressure and recycling systems will prevent air stratification.
http://www.keepsafe.ca/fileadmin/pdfs/microclimateprimer.pdf
(3) A clean source of forced air supply is used for ventilation that does not increase the hazards in the space.
(...)
The operation is based on forced air supply into the working cabinet and then the removal of contaminated air through the two-level refining system.
http://tinyurl.com/2bozvab
--------------------------------------------------
Note added at 23 mins (2010-12-07 01:09:59 GMT)
--------------------------------------------------
Respiratory protection is necessary for cleaning up spills and leaks. Protect personnel from fumes by use of positive pressure air supply.
http://www.dow.com/PublishedLiterature/dh_02e9/0901b803802e9...
This product completely encapsulates the infant or toddler, securing them in an easy to transport heat protective enclosure, while maintaining safe breathing air using a positive pressure air supply.
http://www.figure8rescue.com/
Active systems using positive pressure air supply offer other benefits: Air flow out of the case will prevent dust infiltration, and remove built up heat and off-gassing. Both positive pressure and recycling systems will prevent air stratification.
http://www.keepsafe.ca/fileadmin/pdfs/microclimateprimer.pdf
4 KudoZ points awarded for this answer.
Comment: "Many thanks!"
Discussion
"Positive pressure" SCBA addresses this limitation. By careful design, the device is set to maintain a small pressure inside the facepiece. Although the pressure drops when the wearer breathes in, the device always maintains a higher pressure inside the mask than outside of the mask. Thus, even if the mask leaks slightly, there is a flow of clean air out of the device, automatically preventing inward leakage under most circumstances. Although the performance of both types of SCBA may be similar under optimum conditions, this "fail safe" behaviour makes a "Positive pressure" SCBA preferable for most applications. As there is usually no air usage penalty in providing positive pressure, the older "Negative pressure" type is, in most cases, an obsolete configuration and is only seen with older equipment.
http://en.wikipedia.org/wiki/Self-contained_breathing_appara...