1 - AS/NZS 4766(Int):2002 POLYETHYLENE STORAGE TANKS FOR WATER AND CHEMICALS
4 - PREFACE
5 - CONTENTS
6 - 1 SCOPE AND LIMITATIONS
6 - 1.1 Scope
6 - 1.2 Limitations
6 - 2 OBJECTIVE
7 - 3 REFERENCED DOCUMENTS
8 - 4 DEFINITIONS
8 - 4.1 Service factor
8 - 4.2 Service Temperature
8 - 5 MATERIALS
8 - 5.1 Compounds
8 - 5.2 Melt flow rate (MFR)
8 - 5.3 Reuse of material
8 - 5.4 Stress-cracking resistance
9 - 5.5 Thermal stability of base resin
9 - 5.6 Carbon black
9 - 5.7 Dispersion of additives and pigments
9 - 5.7.1 Non-UV-stabilized base resins
9 - 5.7.2 UV-stabilized base resins
9 - 5.7.3 Light penetration
9 - 5.8 UV resistance
9 - 5.9 Chemical resistance
10 - 5.10 Materials in contact with drinking water and food
10 - 6 DESIGN
10 - 6.1 Fitness for purpose
10 - 6.2 Wall thickness
10 - 6.3 Material test data
11 - 6.4 Roof
11 - 6.5 Floor
11 - 6.6 Open-top tanks
11 - 6.7 Fittings
11 - 7 DIMENSIONS AND TOLERANCES
11 - 7.1 Dimensions
11 - 7.2 Tolerances
11 - 7.2.1 Outside diameter
11 - 7.2.2 Shell wall and head thickness
11 - 8 TANK CAPACITY
11 - 9 FITTINGS
12 - 10 WORKMANSHIP
12 - 11 HANDLING, STORAGE AND PACKING
12 - 12 MARKING REQUIREMENTS
13 - APPENDIX A - MEANS FOR DEMONSTRATING COMPLIANCE WITH THIS STANDARD
13 - A1 SCOPE
13 - A2 RELEVANCE
13 - A3 DEFINITIONS
13 - A3.1 Acceptable quality level (AQL)
13 - A3.2 Batch
13 - A3.3 Batch release test (BRT)
13 - A3.4 Inspection level
13 - A3.5 Lot
13 - A3.6 New formulation
13 - A3.7 Process verification test (PVT)
14 - A3.8 Sample
14 - A3.9 Sampling plan
14 - A3.10 Type test (TT)
14 - A4 PRODUCT CERTIFICATION
14 - A5 MINIMUM SAMPLING AND TESTING FREQUENCY PLAN
14 - A5.1 General
14 - A5.2 Retesting
14 - A5.3 Rejection after test
16 - APPENDIX B - THERMAL STABILITY TEST
16 - B1 SCOPE
16 - B2 PRINCIPLE
16 - B3 APPARATUS
16 - B4 PREPARATION OF TEST SAMPLES
16 - B5 PROCEDURE
17 - B6 TEST REPORT
18 - APPENDIX C - HYDROSTATIC DESIGN HOOP STRESS
18 - C1 WALL THICKNESS
18 - C2 HYDROSTATIC DESIGN STRESS
18 - C3 DERATING
19 - APPENDIX D - LOW TEMPERATURE IMPACT TEST
19 - D1 SCOPE
19 - D2 PRINCIPLE
19 - D3 RELEVANCE
19 - D4 DEFINITIONS
19 - D4.1 Brittle failure
19 - D4.2 Ductile failure
19 - D4.3 Drop height
19 - D5 CONDITIONING
19 - D6 PROCEDURE
19 - D6.1 Test specimen
20 - D6.2 Procedure
20 - D7 REPORT