HEPA-FILTER TESTING: COMPARISON OF DOP AND NaCl AEROSOLS.
HEPA-FILTER TESTING: COMPARISON OF DOP AND NaCl AEROSOLS. Full Record Related Research Authors: Murrow, J L; Nelson, G O Publication Date: Sat Jan 01 00:00:00 EST 1972 Research Org.: California Univ., Livermore. Lawrence Livermore Lab. OSTI Identifier: 4665684 Report Number (s): UCRL-73815; CONF-720823-7 NSA Number: NSA-26-050559 Resource Type:
LAWRENCE UVERMORE LABORATORY
The purpose of our study was to compare the NaCl and DOP methods of testing HEPA filter efficiency and to determine the relationship between the two types of pene tration measurements. Description NaCl Test Apparatus The NaCl aerosol system (shown in Fig. 1) was assembled using the British
HEPA-filter testing: comparison of DOP and NaCl aerosols|INIS
AEROSOLS (1) AIR (1) ... HEPA-filter testing: comparison of DOP and NaCl aerosols. Murrow, ... FILTERS, PERFORMANCE TESTING, PHTHALIC ACID ESTERS, SODIUM CHLORIDES
NIOSH Guide to the Selection and Use of Particulate
Respirators tested with NaCl (i.e., N-series filters) are not resistant to efficiency degradation by oils and should be used only in workplaces free of oil aerosols. Filters passing DOP oil tests (i.e., R- and P-series filters) are resistant to efficiency degradation and can be used for protection against any aerosols (including oil-based
Integrity testing of HEPA filters: A practical approach
Typically, HEPA filters capture up to 99.97% of particles as small as 0.3 microns. The dispersed oil particulate (DOP) scan testing, also known as filter integrity testing, or leak testing, is one of the most quoted methods by industry standards.
- What are the different HEPA filter test methods?
- To compare different HEPA filter test methods, a set of twenty HEPA filters were tested using the polydisperse DOP method, uranine method, and the sodium chloride method. Each filter had a capacity of 1000 cfm and was made of the same materials.
- Can sodium flame be used to test a HEPA filter?
- In addition, the sodium flame method has been successfully used in testing the HEPA filter in a 5 MW low-temperature nuclear heating reactor and a 10 MW high-temperature gas-cooled reactor-test module (HTR-10) in 1989 and 2000, respectively. 4. Conclusion
- What are HEPA filters used for in the nuclear industry?
- In nuclear industry, HEPA filters are used as an important engineering safeguard to prevent the release of air borne radioactive particulates to the environment. High Efficiency Particulate Air (HEPA) filters are used for the removal of submicron size particulates from air streams.
- What is a HEPA filter?
- High Efficiency Particulate Air (HEPA) filters are used for the removal of submicron size particulates from air streams. In the nuclear industry, they are used as an important engineering safeguard to prevent the release of airborne radioactive particulates to the environment.
- Can laser spectrometer be used as detector for rig testing of HEPA filters?
- The application of the laser spectrometer as a detector for rig testing of HEPA filters was investigated. It was compared to the uranine and DOP methodology in these tests, which were performed at different volumetric flow rates and for single and double HEPA filters.
- How does in-place filter testing work in China?
- In China, filter media testing and filter testing use the sodium flame method, which involves spraying an aqueous NaCl solution to produce NaCl aerosol. However, in-place filter testing cannot employ this approach because of the low dust production rate.
