1 - AS/NZS 4020:2002 TESTING OF PRODUCTS FOR USE IN CONTACT WITH DRINKING WATER
4 - PREFACE
5 - CONTENTS
6 - FOREWORD
7 - 1 SCOPE
7 - 2 REFERENCED DOCUMENTS
9 - 3 DEFINITIONS
9 - 3.1 Anaerobic adhesive
9 - 3.2 Colour (true colour)
9 - 3.3 Composite product
9 - 3.4 Cytotoxic
9 - 3.5 Drinking water
9 - 3.6 End-of-line fitting
9 - 3.7 Extract (leachate)
9 - 3.8 Extractant water
9 - 3.9 Maximum holding water temperature
9 - 3.10 Mutagenic
10 - 3.11 Organoleptic
10 - 3.12 Product
10 - 3.13 Sample
10 - 3.14 Scaling factor
10 - 3.15 Taste panellist
10 - 3.16 Test water
10 - 3.17 Threshold dilution
10 - 3.18 Turbidity
10 - 3.19 Water fitting
10 - 4 TEST SAMPLES
10 - 4.1 Selection and preparation of samples
11 - 4.2 Range of product sizes
11 - 4.3 Product exposure
11 - 5 SCALING FACTORS
11 - 5.1 General
12 - 5.2 Determination of scaling factors
12 - 5.3 Application of scaling factors
12 - 5.4 Restrictions on the use of scaling factors
13 - 6 TEST REQUIREMENTS
13 - 6.1 General
13 - 6.2 Taste of water extract
13 - 6.3 Appearance of water extract
13 - 6.4 Growth of aquatic micro-organisms
13 - 6.5 Cytotoxic activity of water extract
13 - 6.6 Mutagenic activity of water extract
14 - 6.7 Extraction of metals
14 - 6.7.1 Products in general
14 - 6.7.2 End-of-line fittings
14 - 7 HOT WATER TESTS
17 - APPENDIX A - SAMPLE PREPARATION
17 - A1 SCOPE
17 - A2 APPARATUS
17 - A2.1 Sample storage bags,
17 - A2.2 Glass plates,
17 - A2.3 Test containers,
17 - A2.4 Temperature-measuring device
17 - A2.5 Relative humidity-measuring device
17 - A2.6 Glass-encapsulated weights,
17 - A3 SAMPLES
17 - A3.1 Nature of samples
18 - A4 PRODUCT EXPOSURE
18 - A4.1 In-the-product exposure
18 - A4.2 Immersion exposure
19 - A5 SAMPLE TRANSPORT AND STORAGE
19 - A6 SAMPLE WASHING
19 - A7 SPECIAL PRODUCTS
19 - A7.1 General
19 - A7.2 Elastomeric products
19 - A7.3 Greases
19 - A7.4 Coatings
20 - A7.5 Sealing compounds
21 - A7.6 Jointing compounds
21 - A7.7 Solder fluxes
21 - A7.8 Anaerobic adhesives
21 - A8 CEMENTITIOUS PRODUCTS
22 - A9 METAL ALLOYS
23 - APPENDIX B - SCALING FACTORS-DERIVATION AND APPLICATION
23 - B1 INTRODUCTION
23 - B2 CALCULATION OF SCALING FACTORS
23 - B3 EXAMPLES OF SCALING FACTOR CALCULATIONS
23 - Example 1: Sealing gasket (immersion exposure)
24 - Example 2 Sluice valve (in-the-product exposure)
24 - Example 3 Domestic plumbing systems
27 - APPENDIX C - TEST METHOD-TASTE OF WATER EXTRACT
27 - C1 SCOPE
27 - C2 INTRODUCTION
27 - C3 PRINCIPLE
27 - C4 TEST PREMISES
28 - C5 REAGENTS
28 - C5.1 Test waters
28 - C5.2 Sodium hypochlorite solution
28 - C5.3 Distilled water,
28 - C6 APPARATUS
28 - C6.1 Test containers,
28 - C6.2 Dilution beakers,
28 - C6.3 Water bath and incubator,
28 - C6.4 Tasting glass,
28 - C6.5 Glass-encapsulated weights,
29 - C7 SELECTION OF TASTE PANELLISTS
29 - C7.1 Taste panel requirements
29 - C7.2 Initial sensitivity test
30 - C7.3 Regular assessment
30 - C7.4 Personal logs
30 - C8 CROSS-CONTAMINATION OF SAMPLES
30 - C9 TEST PROCEDURE
30 - C9.1 Extraction
31 - C9.2 Taste test dilutions
31 - C9.3 Tasting procedure
32 - C9.4 Extraction procedure using chlorinated water
32 - C10 EXPRESSION OF RESULTS
32 - C10.1 Validation
32 - C10.2 Expression of results
32 - C11 TEST REPORT
33 - C12 LIST OF TASTES
34 - APPENDIX D - TEST METHOD-APPEARANCE OF WATER EXTRACT
34 - D1 SCOPE
34 - D2 PRINCIPLE
34 - D3 REAGENTS
34 - D3.1 Test water,
34 - D3.2 Colour matching solutions,
34 - D3.3 Formazine solutions,
34 - D4 APPARATUS
34 - D4.1 Laboratory ware,
34 - D4.2 Test containers,
34 - D4.3 Colour measurement apparatus,
34 - D4.4 Incubator,
34 - D4.5 Turbidity measurement apparatus,
34 - D4.6 Glass-encapsulated weights,
35 - D5 SAMPLES
35 - D6 TEST PROCEDURE
35 - D6.1 General
35 - D6.2 Further extracts
35 - D7 MEASUREMENT OF COLOUR AND TURBIDITY
36 - D8 CALCULATIONS
36 - D9 TEST REPORT
38 - APPENDIX E - TEST METHOD-GROWTH OF AQUATIC MICRO-ORGANISMS
38 - E1 SCOPE
38 - E2 INTRODUCTION
39 - E3 PRINCIPLE
39 - E4 TEST PREMISES
39 - E5 SAFETY
39 - E6 REAGENTS
39 - E6.1 General
39 - E6.2 Inoculum water,
40 - E6.3 Test water
41 - E7 APPARATUS
41 - E7.1 Test containers
41 - E7.2 Dissolved oxygen meter,
41 - E7.3 Incubator/chamber,
41 - E7.4 Glass-encapsulated weights,
41 - E8 SAMPLES
41 - E8.1 General requirements
42 - E8.2 Reference materials
42 - E9 TEST PROCEDURES
42 - E9.1 Preparation of the test system
42 - E9.2 Incubation
43 - E9.3 Assessment of microbial growth
43 - E9.4 Measurement of dissolved oxygen for lubricants and lubricated materials
44 - E10 EXPRESSION OF RESULTS
44 - E10.1 Calculation of results
44 - E10.2 Validation of results
44 - E10.3 Precision
44 - E11 APPLICATION OF SCALING FACTOR
44 - E12 TEST REPORT
46 - APPENDIX F - TEST METHOD-CYTOTOXIC ACTIVITY OF WATER EXTRACT
46 - F1 SCOPE
46 - F2 PRINCIPLE
46 - F3 TEST PREMISES
46 - F4 REAGENTS
46 - F4.1 Test water,
46 - F4.2 Distilled water
46 - F4.3 Media
48 - F4.4 Cell line
48 - F5 APPARATUS
48 - F5.1 Tissue-culture ware,
48 - F5.2 Haemocytometer counting chamber,
48 - F5.3 Test containers,
48 - F5.4 Incubators,
48 - F5.5 Glass-encapsulated weights,
48 - F6 TEST SAMPLES
48 - F7 TEST PROCEDURE
48 - F7.1 Introduction
48 - F7.2 Maintenance of the cell line
49 - F7.3 Preparation of cell suspension
49 - F7.4 Extraction procedure
50 - F7.5 Growth procedure
50 - F7.6 Microscopic examination
50 - F7.7 Expression of results
51 - F8 TEST REPORT
53 - APPENDIX G - TEST METHOD-MUTAGENIC ACTIVITY OF WATER EXTRACT
53 - G1 SCOPE
53 - G2 PRINCIPLE
53 - G3 TEST PREMISES
53 - G4 REAGENTS
53 - G4.1 Test water,
54 - G4.2 Distilled water
54 - G4.3 Control mutagens,
54 - G4.4 Medium,
54 - G4.5 Bacteria
54 - G5 APPARATUS
54 - G5.1 Bacteria-culture ware,
54 - G5.2 Test containers,
55 - G5.3 Incubators,
55 - G5.4 Glass-encapsulated weights,
55 - G6 TEST SAMPLES
55 - G7 TEST PROCEDURE
55 - G7.1 Introduction
55 - G7.2 Extraction procedure
55 - G7.3 Modified Ames test
56 - G7.4 Controls
56 - G7.5 Interpretation of results
56 - G8 TEST REPORT
58 - APPENDIX H - TEST METHOD-EXTRACTION OF METALS
58 - H1 SCOPE
58 - H2 LIMIT OF DETECTION AND SENSITIVITY
58 - H3 PRINCIPLE
58 - H4 REAGENTS
58 - H4.1 Test water,
58 - H4.2 Nitric acid,
58 - H4.3 Nitric acid,
58 - H5 APPARATUS
58 - H5.1 Cleaning
58 - H5.2 Test containers,
58 - H5.3 Bottles,
58 - H5.4 Incubator,
58 - H5.5 Glass-encapsulated weights,
59 - H6 TEST SAMPLES
59 - H6.1 General requirements
59 - H6.2 Number of tests
59 - H7 TEST PROCEDURE
59 - H7.1 Extraction
60 - H7.2 Determination of extracted metals
61 - H8 EXPRESSION OF RESULTS
61 - H9 TEST REPORT
63 - APPENDIX I - TEST METHOD-EXTRACTION PROCEDURES FOR END-OF-LINE FITTINGS
63 - I1 SCOPE
63 - I2 PRINCIPLE
63 - I3 APPARATUS
63 - I3.1 Test rig (for test procedure I6.3)
64 - I3.2 Measuring vessels,
64 - I4 REAGENTS (for test procedure I6.3)
64 - I4.1 Test water
64 - I4.2 Methanol
64 - I5 TEST FITTINGS (for test procedure I6.3)
64 - I6 TEST PROCEDURE
64 - I6.1 Test procedure for extracts for Appendices C and D
65 - I6.2 Test procedure for extracts for Appendix F and G
66 - I6.3 Test procedure for extracts for Appendix H
67 - I7 EXPRESSION OF RESULTS
67 - I8 TEST REPORT
68 - APPENDIX J - HIGH TEMPERATURE TESTS
68 - J1 SCOPE
68 - J2 PRINCIPLE
68 - J3 APPARATUS
68 - J3.1 Water bath or incubator,
68 - J4 SAMPLES
68 - J5 TEST PROCEDURE
68 - J5.1 Extraction temperature
69 - J5.2 Extraction procedure
69 - J5.3 Testing
69 - J6 EXPRESSION OF RESULTS
69 - J7 TEST REPORT
70 - APPENDIX K - TEST METHOD-SAMPLE EXTRACTION PROCEDURE FOR USE WITH WATER-HEATING SYSTEMS
70 - K1 SCOPE
70 - K2 PRINCIPLE
70 - K3 REAGENTS
70 - K3.1 Test water
70 - K4 TEST PROCEDURE
70 - K4.1 Installation
71 - K4.2 Test method
74 - K5 EXPRESSION OF RESULTS
74 - K6 TEST REPORT
75 - APPENDIX L - SUGGESTED PRODUCT SUBMISSION FORM
78 - APPENDIX M - SIMULATED SAMPLES
78 - M1 SCOPE
78 - M2 GENERAL
78 - M3 TYPICAL EXAMPLES OF SIMULATED SAMPLES
78 - M4 SPECIAL ISSUES
79 - M5 COMPONENT DOCUMENTATION
79 - M6 ACCEPTANCE