Standard
Track updates
AS 4452:2025
[Current]The storage and handling of toxic substances
AS 4452:2025 sets out requirements and recommendations for the safe storage and handling of chemicals, i.e. substances that meet the Class 6.1 classification criteria of the Australian Dangerous Goods Code (ADG Code).
Published: 25/07/2025
Pages: 70
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Introduction
1 Scope and general
1.1 Scope
1.2 Normative references
1.3 Application
1.4 Terms and definitions
2 General requirements
2.1 Packaging
2.2 Labelling
2.3 Security of storage areas
2.4 Separation and segregation
2.4.1 Separation of stores from sensitive uses, protected places, public places and boundaries
2.4.2 Separation distances
2.4.3 Segregation
2.4.3.1 Substances that are incompatible or can react dangerously
2.4.3.2 Segregation from foodstuffs
2.4.3.3 Measurement of segregation distances
2.4.3.4 Co-storage of Class 6.1 with a subsidiary hazard 3
3 Minor storage
3.1 Scope of section
3.2 Criteria for classification as minor storage
3.3 Separation of minor storages
3.4 Requirements applicable to minor storage
3.5 Storage on farms
4 Transit storage
4.1 Scope of section
4.2 Delineation of transit storage areas
4.3 Requirements for transit storage
5 Loading and unloading areas
5.1 Scope of section
5.2 Specifications for loading and unloading areas
5.3 Tank vehicle filling
5.3.1 Scope
5.3.2 Fill point
5.3.3 Collision protection
5.3.4 Vehicle access
5.3.5 Top-filling installations — Access to vehicle tank
5.3.6 Spillage control
5.3.7 Design and construction of filling system
6 Storage and handling of packages
6.1 Scope of section
6.2 Types of package stores
6.3 Location of store
6.3.1 General
6.3.2 Separation and segregation
6.3.2.1 Separation distances
6.3.2.2 Segregation distances
6.4 General requirements for package stores
6.4.1 Requirements for stores other than indoor storage cabinets
6.4.2 Requirements specifically for indoor storage cabinets
6.4.2.1 Types of substances kept
6.4.2.2 Maximum quantities to be kept
6.4.2.3 Cabinet design
6.4.2.4 Ventilation provisions
6.4.2.5 Cabinet location
6.4.2.6 Cabinet marking
6.5 Requirements for package filling operations
7 Storage and handling in tanks
7.1 Scope of section
7.2 Tank types
7.3 Location of tanks
7.3.1 General
7.3.2 Separation and segregation
7.3.2.1 Separation distances
7.3.2.2 Measurement of separation distances
7.3.2.3 Segregation
7.4 Bunds and compounds
7.4.1 General
7.4.2 Capacity of compounds
7.4.3 Design and construction
7.4.4 Compound drainage
7.4.5 Maintenance
7.5 Design and construction requirements applicable to all tanks
7.5.1 Protection against corrosion
7.5.2 Foundation
7.5.3 Supports
7.5.4 Bearing area
7.5.5 Vents
7.5.6 Liquid lines
7.5.7 Tank filling
7.5.8 Transfer points
7.5.9 Ancillary equipment for tanks
7.5.9.1 Pipes and flexible hoses
7.5.9.2 Accessories
7.5.9.3 Fittings and pipe joints
7.5.9.4 Transfer systems
7.5.9.5 Heating of tanks
7.5.9.6 Electrical equipment
7.6 Additional requirements for portable tanks
7.7 Additional requirements for fixed tanks
7.7.1 General
7.7.2 Materials of construction
7.7.2.1 General
7.7.2.2 Design to accommodate loss of material
7.7.3 Tank design and construction
7.7.4 Tank lining
7.7.5 Level indication
7.7.6 Nozzles
7.7.7 Overfill lines
7.7.8 Requirements for tanks with integral secondary containment
7.7.8.1 General
7.7.8.2 Requirements for all tanks having integral secondary containment
7.7.8.3 Additional requirements for double-walled tanks
7.7.8.4 Additional requirements for tanks with integrated compounds
7.7.9 Additional requirements for tanks with external fire-rated covering
7.8 Filling of tanks
7.8.1 General
7.8.2 Filling connections
7.8.3 Transfer hoses
7.8.4 Spillage control for toxic liquids
7.8.4.1 General requirements
7.8.4.2 Capacity of system
7.9 Spill management and chemical barrier protection
8 Storage and handling of bulk solids
8.1 Scope and application of section
8.2 Container types
8.3 Design and construction requirements applicable containers for toxic solids
8.3.1 Protection against moisture ingress
8.3.2 Protection against corrosion and chemical attack
8.3.3 Foundation, supports and bearing area
8.3.4 Design, construction and maintenance of silos and hoppers
8.4 Location of containers
8.4.1 General
8.4.2 Separation
8.4.2.1 Toxic solids having subsidiary hazard
8.4.2.2 Separation distances
8.4.3 Segregation
8.4.3.1 General
8.4.3.2 Measurement of segregation distances
9 Operational and personnel safety
9.1 Scope of section
9.2 General precautions
9.2.1 Work procedures
9.2.2 Control of entry
9.2.3 Clear access
9.2.4 Lighting
9.2.5 Safety showers and eyewash stations
9.2.6 Safety information
9.2.7 Checking of safety equipment
9.2.8 Activities within stores
9.3 Control of exposure
9.3.1 Control strategies
9.3.2 Ventilation
9.4 Housekeeping
9.4.1 Site upkeep
9.4.2 Bulk solids installations
9.4.3 Package stores
9.4.4 Inspection of plant and equipment
9.5 Effluent control
9.6 Construction and maintenance work
9.6.1 General
9.6.2 Management of change
9.6.3 Routine work
9.6.4 Work permit
9.6.5 Preparation of work site
9.6.6 Completion of work
9.6.7 Hot work
9.6.8 Work inside a confined space
9.7 Personnel training
9.7.1 Job knowledge
9.7.2 Training
9.7.3 Personal hygiene
9.8 Personal protective equipment
9.8.1 General
9.8.2 Type of personal protective equipment
9.8.3 Care and maintenance of personal protective equipment
9.9 First aid
9.9.1 General
9.9.2 First aid kit
9.9.3 First aid procedure
10 Emergency management
10.1 Scope of section
10.2 Planning for emergencies
10.2.1 Considerations in designing premises
10.2.2 Emergency plan
10.2.2.1 General
10.2.2.2 Premises emergency plan
10.2.2.3 Plan for use by emergency services
10.3 Manifest
10.4 Placarding of stores and premises
10.5 Management of leaks and spills
10.5.1 General
10.5.2 Clean-up materials and equipment
10.5.3 Actions for dealing with leaks and spills
10.5.4 Maintenance of clean-up equipment
11 Fire protection
11.1 Scope of section
11.2 General considerations
11.3 Fire protection measures
11.3.1 General
11.3.2 Fire protection requirements
11.4 Action in the event of fire
12 Waste storage and disposal
12.1 Scope of section
12.2 Storage of wastes
12.3 Items for disposal
12.3.1 Toxic substances
12.3.2 Other items
12.4 Pre-disposal treatment of empty containers
12.5 Methods of disposal
Appendix A
A.1 Health hazards
A.1.1 General
A.1.2 Routes of entry
A.2 Environmental hazards
A.3 Other hazards
Appendix B
Appendix C
C.1 Procedures required
C.2 Promulgation of procedures
C.3 Review of procedures
C.4 Operating procedures
C.5 Construction and maintenance procedures
C.6 Emergency procedures
C.7 Conformance with procedures
Appendix D
D.1 Provision of facilities and training
D.2 Symptoms
D.3 Antidotes
Appendix E
Appendix F
F.1 Different documents with different purposes
F.2 Hazards
F.3 Dangerous goods of Class 6.1
F.4 GHS classification of acute toxicity
F.5 Other toxicity categories — GHS
F.6 Graphical symbols in labels
F.7 Use of the symbols
Appendix G
G.1 General
G.2 Transport and storage requirements
G.2.1 Containers
G.2.2 Loaded vehicles and rail wagons
G.3 Sites
G.3.1 Fixed liquid tanks, solids containers and process equipment
G.3.2 Piping
G.3.3 Premises and storage areas
G.3.4 HAZCHEM placard
G.3.5 Additional workplace signage
Appendix H
H.1 General
H.2 Manifest contents
Bibliography
Cited references in this standard
[Current]
Methods for fire tests on building materials, components and structures, Part 1: Combustibility test for materials (ISO 1182:2020, NEQ)
One-time Purchase
Access via web browser on any device
One-time purchase
Single publication
Offline access via PDF^
$213.50 AUD
Inclusive of GSTFormat *
Web Reader
Licenses *
1 License (for yourself - not shareable)
Total$213.50 AUD
IMPORTANT