| Document ID (ISN) | 59729 |
| CIS number |
93-588 |
| ISSN - Serial title |
0002-8894 - American Industrial Hygiene Association Journal |
| Year |
1991 |
| Convention or series no. |
|
| Author(s) |
Crutchfield C.D., Murphy R.W., Van Ert M.D. |
| Title |
A comparison of controlled negative pressure and aerosol quantitative respirator fit test systems by using fixed leaks |
| Bibliographic information |
June 1991, Vol.52, No.6, p.249-251. Illus. 3 ref. |
| Abstract |
An automated version of a new method for quantitative respirator fit testing by controlled negative pressure was compared with a computerised aerosol fit test system. The controlled negative pressure technique eliminates many of the problems associated with aerosol and pressure decay fit test methods. A series of fixed leaks was used to compare the leak measurement capabilities of the controlled negative pressure system against a standard computerised aerosol fit test system. Negative pressure and aerosol fit factors determined for a series of fixed leaks through hypodermic needles were highly correlated with each other (r=0.998) and with the cross-sectional areas of the leak needles (r>0.995). |
| Descriptors (primary) |
negative pressure application; respirators; leakage testing; equipment testing; facepieces |
| Descriptors (secondary) |
computer applications; automation |
| Document type |
D - Periodical articles |
| Country / State or Province | USA |
| Subject(s) |
Personal protection
|
| Broad subject area(s) |
Chemical safety
|
| Browse category(ies) |
Ventilation
Respiratory protection
|
