BSI PD 6609:2007
$102.76
Environmental cleanliness in enclosed spaces. Guide to in situ high efficiency filter leak testing
| Published By | Publication Date | Number of Pages |
| BSI | 2007 | 20 |
This Published Document provides information supplementary to the provisions of BS EN ISO 14644‑3:2005. In particular, it gives recommendations and explanatory guidance for in situ leak testing of high efficiency filters using an oil aerosol challenge and photometer. It also provides guidance on the procurement of replacement filters (Annex A) and information that might be required in a test report (Annex B).
The guidance contained in this document is for the leak testing of high efficiency air filters that can be face scanned. The document does not provide information on other tests carried out on high efficiency filters installed in cleanrooms, such as pressure differentials, air supply volumes, and airflow uniformity.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 3 | Contents 0 Introduction 1 1 Scope 1 2 Normative references 1 3 Requirements for testing 1 Annexes Annex A (informative) High efficiency filter specification table 6 Annex B (informative) In situ leak test report 11 Bibliography 14 List of figures Figure 1 – Diagram of an aerosol challenge to multiple filters via an air handling unit 2 Figure 2 – Diagram of aerosol filter testing 4 Figure A.1 – Filter dimensions 7 List of tables Table A.1 – High efficiency filter specification 8 Table B.1 – In situ leak test report sheet 12 |
| 4 | Foreword |
| 5 | 0 Introduction 1 Scope 2 Normative references 3 Requirements for testing 3.1 Aerosol injection |
| 6 | Figure 1 Diagram of an aerosol challenge to multiple filters via an air handling unit |
| 7 | 3.2 Aerosol challenge |
| 8 | Figure 2 Diagram of aerosol filter testing 3.3 System scanning |
| 9 | 3.4 Airflow through filters 3.5 Repair of filters |
| 10 | Annex A (informative) High efficiency filter specification table A.1 High efficiency filter specification checklist a) application and orientation; b) volumetric flow rate, uniformity of airflow and “clean” pressure drop; c) pass/fail criteria for leakage and penetration with reference to the in situ test method to be used; d) pass/fail criteria for leakage and penetration with reference to manufacturers’ tests (A.2); e) sealing arrangement; f) size and form of construction. |
| 11 | Figure A.1 Filter dimensions A.2 Manufacturers’ high efficiency filter tests |
| 12 | Table A.1 High efficiency filter specification |
| 13 | Table A.1 High efficiency filter specification (continued) |
| 14 | Table A.1 High efficiency filter specification (continued) |
| 15 | Annex B (informative) In situ leak test report a) facility details; b) date of test; c) test method, test parameters, acceptance criteria; d) instrumentation and calibration status; e) measured upstream aerosol concentrations at the beginning and end of each test, and variation; f) maximum downstream percentage local penetration measured per filter; g) pass/fail test result; h) corrective actions; and i) name of tester(s) and testing qualification. |
| 16 | Table B.1 In situ leak test report sheet |
| 18 | Bibliography |
