PD 6609:1996 - In situ aerosol testing of HEPA filtration. An explanatory supplement to BS 5295:Part 1:1989
Printed version of this is available at library. To request, please e-mail to referencepk@usm.my and include a copy of this record in your e-mail.
D 6609:1996 is an explanatory supplement to BS 5295: Part 1: 1989, providing guidance on in situ aerosol testing of High-Efficiency Particulate Air (HEPA) filtration. HEPA filters are designed to remove particulate matter from air and are commonly used in environments where high air quality standards are required, such as in cleanrooms, hospitals, and certain industrial processes.
Here are some key points related to in situ aerosol testing of HEPA filtration as outlined in PD 6609:1996:
Purpose: The document likely outlines the purpose of in situ aerosol testing, which is to evaluate the performance of HEPA filters under actual operating conditions. This is important for ensuring that the filters effectively capture and retain particulate matter as intended.
Testing Methodology: PD 6609:1996 may provide detailed guidance on the procedures and methodologies for conducting in situ aerosol testing. This could include the selection of appropriate aerosol generators, measurement instruments, and test conditions.
Aerosol Challenge: The document may specify the type and size distribution of aerosol particles used to challenge the HEPA filters. This challenge aerosol is introduced to simulate real-world conditions and assess the filter's efficiency in capturing particles of varying sizes.
Test Locations: Guidelines for selecting appropriate locations within the system or facility for conducting in situ aerosol testing may be included. This ensures that the tests accurately represent the conditions to which the filters are exposed during normal operation.
Acceptance Criteria: PD 6609:1996 may define criteria for evaluating the performance of HEPA filters based on the results of the in situ aerosol testing. These criteria help determine whether the filters meet the required efficiency standards.
Documentation: The document likely emphasizes the importance of documenting the testing procedures, results, and any deviations from the standard protocol. Proper documentation is crucial for quality control and compliance verification.
Frequency of Testing: Recommendations on the frequency of in situ aerosol testing may be provided. Regular testing helps ensure ongoing filter performance and facilitates timely identification and correction of any issues.
Correlation with Bench Testing: PD 6609:1996 might address the correlation between in situ aerosol testing and bench testing conducted under controlled laboratory conditions. This correlation is essential to validate the effectiveness of the filters in real-world applications.
