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AS/NZS 2243.9:2009

[Pending Revision]

Safety in laboratories, Part 9: Recirculating fume cabinets

Specifies requirements and provides recommendations for the design, manufacture, selection and use of recirculating fume cabinets for use in laboratories. Includes test methods to determine their performance.
Published: 15/06/2009
Pages: 28
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Foreword
1 Scope and general
1.1 Scope
1.2 Objective
1.3 Referenced documents
1.4 Definitions
2 Types, services and components
2.1 Types of recirculating fume cabinets
2.1.1 General
2.1.2 Up-draught cabinets
2.1.3 Down-draught cabinets
2.2 Limitations of use
2.3 Services
2.3.1 General
2.3.2 Services to open-based recirculating fume cabinets
2.3.3 Electrical services
2.3.4 Other services
2.3.5 Controls
2.3.6 Lights
2.4 Filters
2.4.1 General
2.4.2 Supply of filters
2.4.3 Identification of fitted filter(s) in use
3 Design and materials of construction
3.1 General
3.2 Recirculating fume cabinet materials
3.2.1 Metals
3.2.2 Plastics
3.2.2.1 General
3.2.2.2 Unplasticized polyvinyl chloride
3.2.2.3 Polypropylene
3.2.2.4 Glass-fibre-reinforced plastics (GRP)
3.2.2.5 Polymethylmethacrylate
3.2.2.6 Polycarbonate
3.2.2.7 Melamine-formaldehyde and phenolic laminates
3.2.2.8 Transparent plastics materials
3.2.3 Glass
3.2.3.1 General
3.2.3.2 Plate glass
3.2.3.3 Wired glass
3.2.3.4 Laminated glass
3.2.3.5 Toughened glass
3.2.4 Timber
3.3 Filter housing/casing
3.4 Recirculating fume cabinet design
3.4.1 Design
3.4.2 Fan
3.4.3 Fan operation indicator
4 Airflow, fume filtration and vapour absorption
4.1 Requirements for airflow into the recirculating fume cabinet
4.1.1 General
4.1.2 Face velocity
4.1.3 Room airflow
4.1.4 Increasing containment
4.2 Fume filtration and absorption
4.2.1 General
4.2.2 System pressure
4.2.3 Filtration of fine particles
4.2.4 Absorption of fume
4.2.5 Filtration of particulates or aerosols giving off toxic fume
5 Siting and commissioning
5.1 Siting
5.1.1 General
5.1.2 Avoiding airflow disturbances to the recirculating fume cabinet
5.1.2.1 Traffic routes
5.1.2.2 Opposing bench tops
5.1.2.3 Opposing walls, other obstructions and other operators
5.1.2.4 Other recirculating fume cabinets or fume extraction equipment
5.1.2.5 Air supply registers
5.1.2.6 Architectural obstacles
5.1.3 Exits and escape routes
5.2 Commissioning tests
5.2.1 General
5.2.2 Smoke tests
5.2.3 Face velocity
5.2.4 Filter installation
5.2.5 Noise level
5.2.6 Testing
5.2.7 Placing in service
6 Recommendations and requirements for use of recirculating fume cabinets
6.1 Risk assessment process
6.2 General procedures
6.3 Before use
6.4 During use
6.5 After use
6.6 Identifying filter saturation
6.6.1 General
6.6.2 Filter failure
6.6.2.1 General
6.6.2.2 Loading of HEPA filters
6.6.2.3 Saturation of the filter
6.6.2.4 Poisoning of the filter
6.6.2.5 Radioactive materials
6.6.2.6 Physical adsorption of organic fume
6.6.3 Methods for detecting filter saturation
6.6.3.1 Periodic monitoring
6.6.3.2 Continuous monitoring
6.7 Fire precautions
7 Servicing and maintenance
7.1 General
7.2 Log book
7.3 Cleaning
7.4 Filter change
7.4.1 General
7.4.2 Pre-filters
7.4.3 Main filter
7.4.4 HEPA filters
7.4.5 Disposal of saturated filters
7.5 Maintenance schedule
7.5.1 Monthly maintenance
7.5.2 Six-monthly maintenance
7.5.3 Annual maintenance
Appendix A
A1 Scope
A2 Apparatus
A3 Method for smoke testing a recirculating fume cabinet’s performance
A3.1 General
A3.1.1 Sequence
A3.1.2 Existing installations
A3.1.3 New recirculating fume cabinet installations
A3.2 Procedure
A4 Reporting of results
A5 Assessment
Appendix B
B1 Scope
B2 Apparatus
B3 Determination of face velocity
B3.1 General
B3.1.1 Sequence
B3.1.2 Existing installations
B3.1.3 New recirculating fume cabinet installations
B3.2 Procedure
B4 Reporting of results
Appendix C
Cited references in this standard
[Current]
Electrical installations (known as the Australian/New Zealand Wiring Rules)
[Superseded]
Biological safety cabinets — Installation and use
[Current]
Safety in laboratories, Part 8: Fume cupboards
[Current]
Safety glazing materials in buildings
[Available Superseded]
Electrical equipment for explosive gas atmospheres — Special protection — Type of protection ‘s’
Content history
[Superseded]
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