AS 4332-2004

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The storage and handling of gases in cylinders

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Sets out requirements and recommendations for the storage and handling of gases in cylinders, as classified as Class 2 dangerous goods in the ADG Code. It applies to stores where individual gases (other than those which are covered by specific Australian Standards) are kept, and to stores where more than one type of gas is kept. Requirements for the location, construction and ventilation of stores are given. Recommendations for the management of emergencies and actions in the event of fire are provided in appendices.

Header

About this publication

Preface

1 Scope and general

1.1 Scope

1.1.1 General

1.1.2 Where this Standard is intended to apply

1.1.3 Where this Standard does not apply

1.2 Application

1.3 Referenced documents

1.4 Definitions

1.5 Classification

1.6 Cylinder identification

1.7 Security of storage areas

2 Minor storage

2.1 Scope of Section

2.2 Application of minor storage

2.3 Criteria for classification as minor storage

2.4 Minor storage of mixed gases

2.5 Precautions for the storage of gases in minor quantities

2.6 Outdoor minor storage

2.7 Indoor minor storage

2.7.1 General

2.7.2 Indoor storage in retail areas

2.7.2.1 General

2.7.2.2 Movement of cylinders

2.7.2.3 Cylinder quantities

2.8 First aid

2.9 Fire protection for minor stores

2.9.1 Fire protection equipment

2.9.2 Action in the event of fire

3 Transit storage

3.1 Scope of Section

3.2 Delineation of transit storage areas

3.3 Requirements for transit storage

4 Construction and location of stores

4.1 Scope of Section

4.2 Requirements for the construction of stores

4.2.1 General

4.2.2 Lighting

4.2.3 Outdoor stores

4.3 Ventilation

4.3.1 General

4.3.2 Natural ventilation

4.3.2.1 General requirements

4.3.2.2 High-level ventilation

4.3.3 Mechanical ventilation

4.4 Separation and segregation

4.4.1 General

4.4.2 Separation

4.4.2.1 General

4.4.2.2  Measurement of separation distances

4.4.2.2.1 Distances to boundaries

4.4.2.2.2 Other separation distances

4.4.3 Segregation within the store

5 Operational and personnel safety

5.1 Scope of Section

5.2 Precautions

5.2.1 General precautions

5.2.2 Precautions for flammable gases

5.2.3 Precautions for oxidizing gases

5.2.3.1 Hazards of oxygen and nitrous oxide

5.2.3.2 Precautions

5.2.3.3 Entry into an oxygen-enriched atmosphere

5.2.4 Precautions for toxic gases

5.2.5 Precautions for refrigerated and cryogenic gases

5.2.6 Precautions for acetylene

5.2.7 Control of entry

5.2.8 Clear access

5.3 Personnel training

5.3.1 Job knowledge

5.3.2 Training

5.3.3 Contractors

5.3.4 Retraining of personnel

5.4 Personal protective equipment

5.4.1 General

5.4.2 Types of personal protective equipment

5.4.3 Occasions for use of personal protective equipment

5.4.4 Care and maintenance of personal protective equipment

5.5 First aid

5.5.1 First aid station

5.5.2 Safety shower and eye wash facilities

5.5.3 First aid procedures

6 Emergency management

6.1 Scope of Section

6.2 Planning for emergencies

6.2.1 Considerations in designing premises

6.2.2 Emergency plan

6.2.2.1 On-site emergency plan

6.2.2.2 Review of emergency plan

6.2.2.3 Emergency plan for use by emergency services

6.3 Manifest

6.4 Placarding

6.5 Management of leaks

7 Fire protection

7.1 Scope of Section

7.2 Application

7.3 General considerations

7.3.1 Hazards

7.3.2 Design and compatibility

7.3.3 Fire protection

7.3.4 Heat protection

7.3.5 Integration with existing facilities

7.3.6 Location

7.3.7 Weather protection

7.3.8 Fixed fire protection and detection systems

7.3.9 Fire alarm systems

7.4 Fire protection requirements

7.5 Fire extinguishers

7.5.1 General

7.5.2 Location

7.5.3 Maintenance

7.5.4 Limitations

7.5.5 Rating

7.6 Hose reels

7.6.1 General

7.6.2 Location

7.6.3 Maintenance

7.7 Fire hydrants

7.7.1 General

7.7.2 Location

7.7.3 Maintenance

7.8 Monitors

7.9 Sprinkler systems

7.9.1 General

7.9.2 Maintenance

7.10 Water supply

7.11 Action in the event of fire

8 Return of cylinders

8.1 Scope of Section

8.2 Normal return of undamaged cylinders

8.3 Return of fire-affected, damaged, corroded or leaking cylinders

Appendix A

A1 Pressure

A2 Flammability

A3 Reactivity

A3.1 Decomposition

A3.2 Corrosion

A3.3 Reaction with elastomeric components

A4 Toxicity

A5 Asphyxiant hazard

A6 Oxygen-enriched atmospheres

A7 Cold hazard

Appendix B

Appendix C

Appendix D

D1 Introduction

D2 Large leaks

D3 Small leaks

Appendix E

E1 General precautions

E2 Special precautions for flammable gases

E3 Special precautions for oxygen and nitrous oxide

E4 Special precautions for acetylene

Appendix F

F1 Emergency plans

F1.1 Premises emergency plan

F1.2 Plan for use by emergency services

F1.3 Information to be provided to the emergency services

F2 Documents providing guidelines for the preparation of emergency plans

Amendment control sheet

AS 4332—2004

Amendment No. 1 (2005)

Revised text