1 - AS 2927-1987 THE STORAGE AND HANDLING OF LIQUEFIED CHLORINE GAS
4 - PREFACE
5 - CONTENTS
8 - SECTION 1 SCOPE AND GENERAL
8 - 1.1 SCOPE.
8 - 1.2 APPLICATION.
8 - 1.3 NEW DESIGNS AND INNOVATIONS.
8 - 1.4 REFERENCED DOCUMENTS
8 - 1.5 DEFINITIONS
8 - 1.5.1 Access
8 - 1.5.2 Approved or approval
8 - 1.5.3 Approved secure area
8 - 1.5.4 Authorized
8 - 1.5.5 Bulk storage vessel (BSV)
8 - 1.5.6 Chlorinator
9 - 1.5.7 Chlorine
9 - 1.5.8 Container
9 - 1.5.9 Cylinder
9 - 1.5.10 Dedicated store
9 - 1.5.11 Drum
9 - 1.5.12 Nominal effective life (of SCBAs)
9 - 1.5.13 Opening (of a wall)
9 - 1.5.14 Protected works
9 - 1.5.15 Public place area
9 - 1.5.16 Road tanker
9 - 1.5.17 Secured area
9 - 1.5.18 Self-contained breathing apparatus (SCBA)
9 - 1.5.19 Statutory authority
9 - 1.5.20 Tank
9 - 1.5.21 Vaporizer
9 - 1.6 CLASSIFICATION OF CHLORINE
9 - 1.7 IDENTIFICATION AND MARKING REQUIREMENTS
9 - 1.7.1 General
9 - 1.7.2 Cylinders
9 - 1.8 HAZARDOUS PROPERTIES OF CHLORINE
9 - 1.8.1 Introduction
9 - 1.8.2 General.
9 - 1.8.3 Toxicity
9 - 1.8.4 Flammability
10 - 1.8.5 Density
10 - 1.8.6 Colour
10 - 1.8.7 Odour
10 - 1.8.8 Corrosive action on metals
10 - 1.8.9 Reactivity to combustibles, lubricants
10 - 1.8.10 Thermal expansion
11 - SECTION 2 STORAGE REQUIREMENTS
11 - 2.1 SCOPE OF SECTION.
11 - 2.2 GENERAL REQUIREMENTS
11 - 2.2.1 Introduction
11 - 2.2.2 Site approval
11 - 2.2.3 Foundations
11 - 2.2.4 Access to installations
11 - 2.2.5 Electrical equipment.
11 - 2.2.6 Access restrictions on personnel
11 - 2.3 LOCATION OF CHLORINE STORAGE AREAS
11 - 2.3.1 General
11 - 2.3.2 Ammonia storage
11 - 2.3.3 Flammable or combustible liquids
11 - 2.3.4 Other materials in storage area
12 - 2.4 OUTDOOR STORAGE AREAS
12 - 2.4.1 Unsecured areas
12 - 2.4.2 Approved secure areas
12 - 2.5 INDOOR STORAGE AREAS
12 - 2.5.1 Materials of construction
12 - 2.5.2 Doors - operation and maintenance
12 - 2.5.3 Signs
12 - 2.5.4 Pits, sumps and machinery wells
12 - 2.5.5 Ventilation of storage areas
13 - 2.5.6 Chlorinators
14 - SECTION 3 PIPING AND PIPELINES
14 - 3.1 SCOPE OF SECTION.
14 - 3.2 MATERIALS
14 - 3.3 FIXED AND UNDERGROUND PIPING
14 - 3.3.1 Metal piping
14 - 3.3.2 Plastics piping
14 - 3.3.3 Underground piping.
14 - 3.3.4 General.
14 - 3.3.5 Pressure relief devices
14 - 3.4 FLEXIBLE PIPING
14 - 3.4.1 General
14 - 3.4.2 Flexible copper tubing
14 - 3.4.3 Materials for flexible hoses
14 - 3.5 GRADIENT OF PIPING.
14 - 3.6 REDUCTION OF LIQUEFACTION HAZARD
15 - 3.7 VALVES
15 - 3.7.1 General
15 - 3.7.2 Globe valves
15 - 3.7.3 Ball valves
15 - 3.7.4 Automatic or remote shut-off valves
15 - 3.7.5 Vacuum-operated valves
15 - 3.7.6 Gas valves under vacuum
15 - 3.8 JOINTS AND FITTINGS
15 - 3.8.1 Joints
15 - 3.8.2 Fittings
15 - 3.8.3 Pressure gauges and pressure switches
15 - 3.9 MANIFOLDING OF CHLORINE CONTAINERS
15 - 3.9.1 Gas supply systems
15 - 3.9.2 Liquid supply systems
15 - 3.10 COLOUR CODING.
16 - SECTION 4 PUBLIC RECREATION AREAS AND SWIMMING POOLS
16 - 4.1 SCOPE OF SECTION.
16 - 4.2 STORAGE AND SUPPLY AREAS.
16 - 4.3 SELF-CONTAINED BREATHING APPARATUS.
17 - SECTION 5 OPERATING PROCEDURES
17 - 5.1 SCOPE OF SECTION
17 - 5.2 PERSONNEL.
17 - 5.3 STORAGE OF CONTAINERS
17 - 5.3.1 Generral
17 - 5.3.2 Cylinders.
17 - 5.3.3 Drums and tanks.
17 - 5.4 HANDLING OF CONTAINERS
17 - 5.4.1 Valve protection caps
17 - 5.4.2 Cylinders
17 - 5.4.3 Drums.
17 - 5.4.4 Tanks.
17 - 5.5 CONNECTION OF CONTAINERS
17 - 5.5.1 Number of containers interconnected
17 - 5.5.2 Orientation of containers
17 - 5.5.3 Making and breaking connections
17 - 5.5.3.1 Safety precautions
17 - 5.5.3.2 Integrity of new connections
17 - 5.6 WITHDRAWAL OF CHLORINE - RESIDUAL PRESSURE
17 - 5.7 INSTALLATION INSPECTIONS/CHECKS
18 - SECTION 6 MAINTENANCE OF INSTALLATIONS
18 - 6.1 SCOPE OF SECTION.
18 - 6.2 PROCEDURES FOR MAINTENANCE
18 - 6.2.1 Personnel
18 - 6.2.2 Openings to area during maintenance
18 - 6.2.3 Preparing for maintenance
18 - 6.2.4 Exclusion of moisture from system
18 - 6.2.5 Lubrication and degreasing.
18 - 6.2.6 Components/replacement parts
18 - 6.2.7 Piping and fittings
19 - SECTION 7 SAFETY EQUIPMENT
19 - 7.1 SCOPE OF SECTION
19 - 7.2 GENERAL REQUIREMENTS
19 - 7.3 INSPECTION AND MAINTENANCE
19 - 7.4 PERSONNEL SAFETY EQUIPMENT
19 - 7.4.1 Self-contained breathing apparatus (SCBA)
19 - 7.4.2 Protective clothing
19 - 7.4.3 Safety showers and eye irrigators.
19 - 7.4.4 First aid instructions.
19 - 7.5 PLANT SAFETY EQUIPMENT
19 - 7.5.1 Leak detectors
20 - 7.5.2 Vapour dispersal
20 - 7.5.3 Sprinkler systems
20 - 7.5.4 Foam generators.
20 - 7.5.5 Caustic venting tanks
20 - 7.5.6 Wind indicators
21 - SECTION 8 EMERGENCY PROCEDURES - PLANT
21 - 8.1 SCOPE OF SECTION
21 - 8.2 EMERGENCY PLANS
21 - 8.3 LEAKS
21 - 8.3.1 Gas leaks
21 - 8.3.2 Liquid leaks
21 - 8.4 FIRES
21 - 8.4.1 General information
22 - 8.4.2 Emergency action
23 - SECTION 9 TRANSPORTATION
24 - APPENDIX A - CHLORINE - PHYSICAL AND CHEMICAL DATA
25 - APPENDIX B - FIRST AID
25 - B1 SCOPE.
25 - B2 PHYSIOLOGICAL SYMPTOMS
25 - B3 CONCENTRATION EFFECTS OF CHLORINE GAS
25 - B4 PLAN OF ACTION.
25 - B5 TREATMENT
25 - B5.1 General
25 - B5.2 Inhaled
25 - B5.3 Eyes
26 - B5.4 Skin
27 - APPENDIX C - HAZARD SIGNS FOR CHLORINE
28 - APPENDIX D - GUIDE TO THE SELECTION OF CONSTRUCTION MATERIALS FOR USE WITH CHLORINE
29 - APPENDIX E - TEMPERATURE/PRESSURE RELATIONSHIP OF LIQUID CHOLORINE
30 - APPENDIX F - GRAPH ILLUSTRATING THE EXPANSION OF WATER AND LIQUID CHLORINE OVER THE TEMPERATURE RANGE -30°C TO 60°C