1 - AS 2809.4-2001 ROAD TANK VEHICLES FOR DANGEROUS GOODS - TANKERS FOR TOXIC AND CORROSIVE CARGOES
4 - PREFACE
5 - CONTENTS
6 - SECTION 1 SCOPE AND GENERAL
6 - 1.1 SCOPE
6 - 1.2 APPLICATION
6 - 1.3 NEW DESIGNS AND INNOVATIONS
6 - 1.4 INTERPRETATIONS
6 - 1.5 REFERENCED DOCUMENTS
7 - 1.6 DEFINITIONS
7 - 1.7 ULLAGE FOR TANKS OR CONTAINERS EXCEEDING 8600 L
8 - SECTION 2 TANKS OF TYPES 1, 2 AND 3
8 - 2.1 APPLICATION
8 - 2.2 TANK DESIGN AND CONSTRUCTION
8 - 2.2.1 Design criteria
8 - 2.2.2 Design pressure
8 - 2.2.3 Materials
8 - 2.2.4 Lining
9 - 2.2.5 Baffles
9 - 2.2.6 Manhole
9 - 2.2.7 Valve protection
9 - 2.3 VALVES AND FITTINGS
9 - 2.3.1 Shut-off valves
9 - 2.3.2 Pressure relief devices
9 - 2.3.3 Outlet connection
9 - 2.3.4 Piping
10 - 2.4 ADDITIONAL REQUIREMENTS FOR HIGHER HAZARDS
10 - 2.4.1 Application
10 - 2.4.2 Piping
10 - 2.4.3 Pumping equipment
10 - 2.4.4 Location of tank openings
10 - 2.4.5 Tank openings
11 - SECTION 3 TANKS OF TYPES 4 AND 5
11 - 3.1 APPLICATION
11 - 3.2 MATERIALS
11 - 3.2.1 Standards
11 - 3.2.2 Chemical resistance
11 - 3.2.3 Lining
11 - 3.3 TANK DESIGN AND CONSTRUCTION
11 - 3.3.1 Design of tank and supports
12 - 3.3.2 Tank shape
12 - 3.3.3 Stiffening of heads, bulkheads and baffles
13 - 3.3.4 Circumferential reinforcement
15 - 3.3.5 Baffles
15 - 3.3.6 Distribution of loads
15 - 3.3.7 Separation of liquids
15 - 3.3.8 Enclosed air spaces
16 - 3.3.9 Component attachment
16 - 3.3.10 Roll-over protection
17 - 3.3.11 Welding
17 - 3.4 MANHOLES, VALVES AND VENTS
17 - 3.4.1 General
17 - 3.4.2 Manholes
18 - 3.4.3 Valves
18 - 3.4.4 Provision of vents
18 - 3.4.5 Top openings
18 - 3.5 PIPEWORK AND PIPE FITTINGS
18 - 3.5.1 Suitability
18 - 3.5.2 Provisions for movement
18 - 3.5.3 Fail-safe provisions
18 - 3.6 PUMPS
18 - 3.6.1 Suitability
19 - 3.6.2 Prevention of overpressure
19 - 3.7 PUMP DRIVES
19 - 3.7.1 Protection
19 - 3.7.2 Shielding of pump shaft
19 - 3.7.3 Location of controls
19 - 3.8 ELECTRIC CABLES AND ELECTRICAL FITTINGS
19 - 3.9 TESTING
19 - 3.9.1 Tanks
19 - 3.9.2 Hatch assembly
19 - 3.9.3 Piping
20 - 3.9.4 Inspection and testing of hoses
20 - 3.10 MARKING
21 - SECTION 4 TANK TESTING AND MAINTENANCE PROCEDURES
21 - 4.1 GENERAL PRECAUTIONS
21 - 4.2 ENTRY INTO TANK
21 - 4.3 PURGING OPERATIONS
22 - 4.4 TANK REPAIRS OR MODIFICATION
22 - 4.5 REGULAR TESTING AND MAINTENANCE
22 - 4.5.1 Precautions prior to work
22 - 4.5.2 Hatches, vents valves
22 - 4.5.3 Pressure-vacuum vents
22 - 4.5.4 Corrosion testing
22 - 4.5.5 Records
22 - 4.5.6 Tank vehicle servicing and repair
23 - 4.5.7 Tank vehicle breakdown
23 - 4.5.8 Safe work procedure