| Main Title |
Evaluation of new in-facepiece sampling procedures for full and half facepieces : project summary / |
| Author |
Myers, Warren R.
|
| Other Authors |
|
| Publisher |
U.S. Environmental Protection Agency, Risk Reduction Engineering Laboratory, |
| Year Published |
1990 |
| Report Number |
EPA/600-S2-89-014 |
| OCLC Number |
39719777 |
| Subjects |
Chemical industry--Safety measures ;
Breathing apparatus ;
Respirators (Medical equipment)
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 600-S2-89-014 |
In Binder |
Headquarters Library/Washington,DC |
10/31/2018 |
| ELBD ARCHIVE |
EPA 600-S2-89-014 |
In Binder Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD |
EPA 600-S2-89-014 |
|
AWBERC Library/Cincinnati,OH |
08/28/1998 |
|
| Collation |
3 pages : illustrations ; 30 cm |
| Notes |
Caption title. "EPA/600-S2-89-014." "Jan. 1990." |
| Contents Notes |
"The manufacture, handling, and use of new chemical substances often require a level of personal protection that includes respirators. Because of the need for these respiratory protection devices, processes to evaluate penetration of full and half facepiece, negative-pressure respirators were studied. The precision and bias were determined for five methods of sampling for inboard penetration through different areas of the face seal. The sampling procedures evaluated were: continuous, low sampling rate, flush on the respirator, mid-nose-mouth probing (CLF); continuous, high sampling rate, deep front-of-mouth probing (CHD); pulsed, exhalation, deep front-of-mouth probing (FED); exhalation valve discharge (EVD); and pulsed, inhalation, deep front-of-mouth probing (PID). The CLF procedure represents current in-face-piece sampling practice in the United States. Based on evaluation with nine full facepiece respirators, the mean sampling biases were CLF: -21%; CHD: -3%; PED: 0.7%; EVD: -14%; and PID: -12.3%. For five half facepiece respirators, the mean sampling biases were CLF: -26%; CHD: -13%; PED: -4%; EVD: -2%; and PID: -24%. To some extent, the location of the face seal penetration, and the design of the respirator affected the bias of each method." |
| Place Published |
Cincinnati, OH |
| Access Notes |
Also available via the World Wide Web. |
| Corporate Au Added Ent |
Risk Reduction Engineering Laboratory (U.S.) |
| PUB Date Free Form |
1990 |
| BIB Level |
m |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20110725105750 |
| Language |
eng |
| Origin |
OCLC |
| Type |
CAT |
| OCLC Rec Leader |
02493cam 2200337Ka 45020 |
