AS 4260-1997

1 - AS 4260-1997 HIGH EFFICIENCY PARTICULATE AIR (HEPA) FILTERS - CLASSIFICATION, CONSTRUCTION AND PERFORMANCE
4 - PREFACE
5 - CONTENTS
6 - SECTION 1 SCOPE AND GENERAL
6 - 1.1 SCOPE
6 - 1.2 REFERENCED DOCUMENTS
7 - 1.3 DEFINITIONS
7 - 1.3.1 Casing
7 - 1.3.2 Cold generated DOP test aerosol (Cold DOP)
7 - 1.3.3 Combustible material
7 - 1.3.4 Equivalent penetration
7 - 1.3.5 Filtration efficiency
7 - 1.3.6 High efficiency particulate air (HEPA) filter
7 - 1.3.7 Initial resistance
7 - 1.3.8 Media
7 - 1.3.9 Media adhesive
7 - 1.3.10 Medium efficiency particulate air (MEPA) filter
8 - 1.3.11 Mounting seal
8 - 1.3.12 Normalization
8 - 1.3.13 Patching
8 - 1.3.14 Penetration
8 - 1.3.15 Rated airflow
8 - 1.3.16 Separator
8 - 1.3.17 Sodium chloride test aerosol
8 - 1.3.18 Splicing
8 - 1.3.19 Test aerosol
8 - 1.3.20 Thermally generated (hot) DOP test aerosol
8 - 1.3.21 Ultra low penetration air (ULPA) filter
8 - 1.4 NEW DESIGNS AND INNOVATIONS
9 - SECTION 2 CLASSIFICATION
9 - 2.1 TYPE AND CLASS
9 - 2.2 PERFORMANCE GRADES
9 - 2.3 MEDIA CLASSIFICATION
10 - SECTION 3 CONSTRUCTION
10 - 3.1 MATERIALS AND FINISH OF COMPONENTS
10 - 3.1.1 General
10 - 3.1.2 Casing
10 - 3.1.3 Separators
10 - 3.1.4 Adhesives and sealants
10 - 3.1.5 Mounting seals
10 - 3.2 DIMENSIONS, TOLERANCES AND CAPACITY
10 - 3.2.1 Casing dimensions
11 - 3.2.2 Tolerances
11 - 3.3 PLEAT CONFIGURATION
11 - 3.3.1 General
11 - 3.3.2 Filters with separators
12 - 3.3.3 Self-supporting filters
12 - 3.4 CASING
12 - 3.5 MEDIA PACK
12 - 3.6 SPLICING
12 - 3.7 PATCHING MEDIA
12 - 3.8 MOUNTINGSEALS
13 - SECTION 4 MARKING AND PACKAGING
13 - 4.1 MARKING OF FILTER
13 - 4.2 PACKAGING
13 - 4.3 MARKING OF PACKAGE
14 - SECTION 5 PERFORMANCE TESTING
14 - 5.1 FILTRATION EFFICIENCY
14 - 5.2 SCAN TESTING FOR FILTER INTEGRITY
14 - 5.3 STRUCTURAL TESTING OF FILTER PACK
14 - 5.4 FIRE PERFORMANCE
15 - APPENDIX A - PURCHASING GUIDELINES
15 - A1 GENERAL
15 - A2 INFORMATION TO BE SUPPLIED BY THE BUYER
15 - A3 PUBLISHED DATA
15 - A4 INSPECTION
15 - A5 ON-SITE TESTING
16 - APPENDIX B - HANDLING AND SHIPMENT OF HEPA FILTERS
17 - APPENDIX C - STRUCTURAL STRENGTH
17 - C1 GENERAL
17 - C2 RESISTANCE TO VIBRATION
17 - C3 PRESSURE DROP RESISTANCE
17 - C4 STRUCTURAL STRENGTH OF FILTER PACK
18 - APPENDIX D - RESISTANCE TO VIBRATION TEST
18 - D1 GENERAL
18 - D2 PRINCIPLE
18 - D3 TEST ENVIRONMENT
18 - D4 TEST SPECIMEN
18 - D5 APPARATUS
18 - D6 PROCEDURES
18 - D7 FAILURE CRITERIA
18 - D8 TEST REPORT

Specifies requirements for the classification, construction and performance testing of fully disposable high efficiency particulate air (HEPA) filters. It includes those filters known as ultra low penetration air (ULPA) filters but excludes medium efficiency particulate air filters (MEPA). An appendix provides requirements for structural strength testing.

This Standard specifies requirements for the classification, construction and performance testing of fully disposable high efficiency particulate air (HEPA) filters. It includes those filters known as ultra low penetration air (ULPA) filters but excludes medium efficiency particulate air filters (MEPA).NOTES:1 Requirements for air filters for use in general ventilation and airconditioning are given in AS 1324.1 and AS 1324.2. Although MEPA filters are not within the scope of this Standard it is recognized that there are similarities of construction, and relevant parts of this Standard may be applied to MEPA filters by buyer/seller agreement.2 The filters covered by this Standard achieve very low sub-micrometre particulate levels for the protection of people, products, and processes from potential contamination. Common applications are cleanrooms for control and protection of pharmaceutical and electronic processes, operating theatres, clean workstations, nuclear containment facilities, and biological containment facilities including safety cabinets.3 Purchasing guidelines are provided in Appendix A. Handling and shipment guidelines are provided in Appendix B.

Originated as part of AS 1132.9-1973.
Previous edition AS 4260.1(Int)-1994 and AS 4260.2(Int)-1994.
Revised, amalgamated and redesignated as AS 4260-1997.