Technical reference for AS 3833:2024 (Storage and handling of mixed classes of dangerous goods). Use this skill when the user asks about mixed dangerous goods storage, segregation of incompatible dangerous goods classes, retail storage of dangerous goods, transit storage, storage cabinets for dangerous goods, separation distances for mixed stores, or fire protection for dangerous goods stores — or when an action skill needs to verify or cite specific clauses of AS 3833:2024.
AS 3833:2024 provides minimum safety requirements for premises where more than one class of dangerous goods is stored and handled in packages and intermediate bulk containers (IBCs) of up to 1.6 m³ capacity. This third edition supersedes AS/NZS 3833:2007 and addresses Classes and Divisions 1.4S, 2, 3, 4.1, 4.2, 4.3, 5.1, 5.2, 6.1, 8, 9 and combustible liquids. It was prepared by Committee CH-009 (Safe Handling of Chemicals) and published 28 June 2024.
Scope limitation — AS 3833 applies only to mixed-class storage (more than one class in the same store) of permitted dangerous goods classes in packages and IBCs up to 1.6 m³. It does not apply to cylinders, laboratories, port areas, or transport in transit.
Excluded dangerous goods — Explosives (except retail 1.4S and sparklers), Division 4.2 PG I and II, temperature-controlled Division 5.2 organics, infectious substances (6.2), and radioactive goods (except in smoke detectors) are excluded.
Risk assessment mandatory — A documented risk assessment must identify all dangerous goods present, assess compatibility, identify incompatibilities requiring segregation, and verify effective controls are in place.
Segregation required — Incompatible dangerous goods classes must be segregated; segregation methods include separation distance, walls, or cabinets depending on hazard.
Design and construction standards — Storage facilities must meet minimum design, construction, ventilation, spillage containment, lighting and exit requirements (Clause 5.4); design failures compromise the entire storage arrangement.
Housekeeping critical — Spills, leaks, and poor housekeeping can lead to unintended contact between incompatible goods; regular inspection and maintenance of segregation are non-negotiable.
Fire protection mandatory — Appropriate fire protection systems (portable extinguishers, hose reels, hydrants, sprinklers) must be installed and maintained according to Clauses 9.1–9.11; the fire protection type depends on the dangerous goods classes present.
Emergency planning required — A documented emergency plan covering response procedures, emergency services notification, and spill/leak management must be in place and accessible (Clause 8.2).
| Section | Title | Key Topics |
|---|---|---|
| 1 | Scope and General | Standard scope, application, references, definitions |
| 2 | Minor Storage | Criteria for small quantities, outdoor precautions |
| 3 | Retail Storage | Retail packages, distribution centres, pool/agricultural chemicals |
| 4 | Transit Storage | Temporary storage during movement, delineation |
| 5 | Storage and Handling — Packages and IBCs | Planning, design, security, packages, IBCs, cabinets, offices |
| 6 | Separation and Segregation | Separation distances, segregation methods, incompatibility rules |
| 7 | Operational and Personnel Safety | Precautions, procedures, training, placarding, PPE, first aid |
| 8 | Emergency Management | Emergency planning, services requirements, spill response |
| 9 | Fire Protection | Fire hazards, fire protection systems, extinguishers, hose reels, sprinklers |
| 10 | Waste Storage and Disposal | Hazardous waste storage and safe disposal methods |
| Appendix | Title | Type |
|---|---|---|
| A | Classes of Dangerous Goods | Informative |
| B | Issues for Risk Assessment | Informative |
| C | Example Risk Assessment | Informative |
| D | Emergency Services Information Requirements | Informative |
| E | Placarding, Marking, Labelling and Signage | Informative |
| F | Bibliography for Emergency Plan Preparation | Informative |
| G | Stacking and Handling Different Types of IBCs | Informative |
AS 3833:2024 is a Category 4 — Advisory / Best Practice Standard. It represents current accepted practice for the co-storage of mixed classes of dangerous goods. While not directly mandated by legislation, it is:
For full regulatory context, refer to the appropriate state/territory WHS legislation and codes of practice.
When the user asks about mixed dangerous goods storage, follow this workflow:
Clarify scope — Confirm the dangerous goods classes and quantities involved. If classes are excluded (e.g., Division 4.2 PG I, temperature-controlled organics, or explosives other than retail 1.4S), refer to the relevant class-specific standard.
Check applicability — Verify the storage is a fixed facility (not transport), involves packages or IBCs (not cylinders or bulk), and is not a laboratory or port facility.
Identify the issue — Determine whether the question concerns:
Find the relevant clause — Locate the specific clause(s) in the section index and direct the user to the relevant section file.
Provide guidance — Quote relevant requirements, explain intent, and suggest risk assessment steps if needed.
Flag compliance gaps — If the user describes an arrangement that falls short of the standard's requirements, highlight the gap and suggest remediation.
| User Question | Most Relevant Sections |
|---|---|
| Can I store Class 3 and Class 8 together? | 6 (Separation and Segregation) — check compatibility table in Clause 6.3 |
| How far apart should different classes be? | 6.2 (Separation distances) |
| What size cabinet do I need for corrosives? | 5.10 (Storage in cabinets), Section 3 (for retail) |
| What fire protection do I need? | 9 (Fire Protection) — depends on classes, quantities, building type |
| How should I train my staff? | 7.8 (Personnel training) |
| What if something spills? | 8.4 (Management of leaks and spills) |
| Can I store pool chemicals and pesticides together? | 3.5–3.6 (retail requirements) and 6.3 (segregation) |
| What goes in the emergency plan? | 8.2 (Planning for emergencies) |
Read the relevant section file in sections/ — Each section contains the full text of that part of the standard.
Cross-reference with Appendices — Appendices provide examples, information on emergency planning, and guidance on incompatibilities and IBC handling.
Conduct a risk assessment — Use Appendix B and C as guides; ensure all dangerous goods are identified, incompatibilities assessed, and controls documented.
Verify specific clauses — When drafting storage procedures or design specifications, always check the exact clause wording in the relevant section file.
Check regulatory alignment — Confirm that requirements under AS 3833 do not conflict with state/territory WHS legislation or local planning constraints.