AS 3688 - 2016 Water supply and gas systems—Metallic fittings and end connectors

1.1 SCOPE This Standard specifies requirements for metallic body pipe fittings and connectors for use with copper tube, stainless steel pipe, stainless steel tube and adaptor fittings for connection to other pipe materials in water supply and gas systems where the continuous working temperature— (a) does not exceed 95ºC, and where the maximum operating pressure does not exceed 1 400 kPa; or (b) is the ambient supply temperature, where the maximum operating pressure does not exceed 2 100 kPa. Products designed for a temperature in excess of 95°C are included where tested to the appropriate temperature criteria

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AS 3688:2016 Water supply and gas systems - Metallic fittings and end connectors

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Water supply and gas systems—Metallic fittings and end connectors

This Australian Standard® was prepared by Committee WS-001, Water Fittings It was approved on behalf of the Council of Standards Australia on 13 June 2016

This Standard was published on 27 June 2016

The following are represented on Committee WS-001: • Association of Accredited Certification Bodies • Australian Industry Group

• Building Officials Institute of New Zealand • CSIRO

• Department of Agriculture and Water Resources (Australian Government) • Gas Technical Regulators Committee

• Housing Industry Association

• International Copper Association Australia

• Master Plumbers and Mechanical Services Association of Australia (Victoria) • National Association of Testing Authorities, Australia

• Plastics Industry Pipe Association of Australia • Plastics NZ

• Plumbing Products Industry Group • Queensland Brassware Association • The Institute of Plumbing Australia • Water Services Association of Australia

This Standard was issued in draft form for comment as DR AS 3688:2015

Standards Australia wishes to acknowledge the participation of the expert individuals that contributed to the development of this Standard through their representation on the Committee and through the public comment period

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Standards Australia welcomes suggestions for improvements, and encourages readers to notify us immediately of any apparent inaccuracies or ambiguities Contact us via email at mail@standards.org.au, or write to Standards Australia, GPO Box 476, Sydney, NSW 2001

Australian Standard®

Water supply and gas systems—Metallic fittings and end connectors

Originated as AS 3688—1994 Previous edition AS 3688—2005 Fourth edition AS 3688:2016

COPYRIGHT

© Standards Australia Limited

All rights are reserved No part of this work may be reproduced or copied in any form or byany means, electronic or mechanical, including photocopying, without the writtenpermission of the publisher, unless otherwise permitted under the Copyright Act 1968 Published by SAI Global Limited under licence from Standards Australia Limited, GPO Box476, Sydney, NSW 2001, Australia

ISBN 978 1 76035 513 5

PREFACE

This Standard was prepared by the Joint Standards Australia and Standards New Zealand Committee WS-001, Water Fittings, to supersede AS 3688—2005, Water supply and gas systems—Metallic fittings and end connectors

The objective of this Standard is to provide for innovation and for a range of fittings that allow for a mixture of pipe materials to be used

It has been expanded to include fittings of other materials and end connectors used to connect pipes and fittings of dissimilar materials

The term ‘normative’ has been used in this Standard to define the application of the appendices to which it applies A ‘normative’ appendix is an integral part of a Standard Statements expressed in mandatory terms in notes to tables are deemed to be requirements of this Standard

2.2 MATERIALS IN CONTACT WITH DRINKING WATER 9

2.3 METALLIC MATERIALS 9

2.4 PLASTIC COMPONENT MATERIALS 10

2.5 OTHER COMPONENT MATERIALS 10

SECTION 3 DESIGN AND DIMENSIONS 3.1 SCOPE OF SECTION 11

3.11 PLATING AND OTHER SURFACE FINISHES 15

3.12 FINISH AND WORKMANSHIP 15

SECTION 4 PERFORMANCE REQUIREMENTS 4.1 SCOPE OF SECTION 16

4.2 LEAKTIGHTNESS UNDER INTERNAL PRESSURE TEST 16

4.3 STRENGTH OF FABRICATED JOINT (TORQUE TEST) 16

4.4 STRENGTH OF JOINT ASSEMBLY (PRESSURE CYCLING TEST) 16

4.5 RESISTANCE TO PULL-OUT OF ASSEMBLED JOINTS 16

4.6 STRENGTH OF NUT AND ASSEMBLY (TORQUE TEST) 16

4.7 LEAKTIGHTNESS UNDER INTERNAL PRESSURE WHILST SUBJECTED TO BENDING 16

4.8 METHOD FOR DETERMINING COMPATIBILITY OF WATER FITTINGS WITH PIPE 17

4.9 ROLL-GROOVED ASSEMBLY (JOINT PRESSURE RESISTANCE TEST) 17

4.10 VACUUM TEST FOR LEAKTIGHTNESS OF JOINTS WITH TUBE UNDER VACUUM 17

4.11 LEAKTIGHTNESS UNDER INTERNAL PNEUMATIC PRESSURE 17

4.12 RESISTANCE OF GAS PRESS FITTINGS TO TEMPERATURE CYCLING 17

4.13 RESISTANCE OF PRESS FITTING JOINTS AND TUBES TO VIBRATION 17

4.14 RESISTANCE OF GAS PRESS FITTINGS TO HIGH TEMPERATURE 17

SECTION 5 CAPILLARY FITTINGS—COPPER AND COPPER ALLOY

10.2 DESIGN 32

10.3 PERFORMANCE 32

10.4 INSTALLATION INSTRUCTIONS 32

10.5 MARKING FOR GAS PRESS-FIT FITTINGS 33

SECTION 11 OTHER COPPER ALLOY FITTINGS 11.1 SCOPE OF SECTION 34

B LIST OF REFERENCED DOCUMENTS 41

C SIZES AND TYPES OF FITTINGS 43

D LEAKTIGHTNESS UNDER INTERNAL PRESSURE TEST 46

E STRENGTH OF FABRICATED JOINT—TORQUE TEST 48

F STRENGTH OF JOINT ASSEMBLY—PRESSURE CYCLING TEST 50

G RESISTANCE TO PULL-OUT OF ASSEMBLED JOINTS 52

H STRENGTH OF NUT AND ASSEMBLY—TORQUE TEST 55

I METHOD FOR DETERMINING LEAKTIGHTNESS UNDER INTERNAL HYDROSTATIC PRESSURE WHILST SUBJECTED TO BENDING 57

J METHOD FOR DETERMINING COMPATIBILITY OF FITTINGS WITH PIPE 59

K ROLL-GROOVED ASSEMBLY JOINT PRESSURE RESISTANCE TEST 61 L SIMULATED SAMPLES 63 M VACUUM TEST FOR LEAKTIGHNESS OF PRESS FIT JOINTS

WITH TUBE UNDER VACUUM 65 N LEAKTIGHTNESS OF GAS PRESS FITTINGS UNDER INTERNAL PNEUMATIC

PRESSURE 67 O RESISTANCE OF GAS PRESS FITTINGS TO TEMPERATURE CYCLING 69 P RESISTANCE OF PRESS FITTING JOINTS AND TUBES TO VIBRATION 72 Q RESISTANCE OF PRESS FITTING JOINTS AND TUBES TO HIGH

TEMPERATURE 75

STANDARDS AUSTRALIA Australian Standard

Water supply and gas systems—Metallic fittings and end connectors

S E C T I O N 1 S C O P E A N D G E N E R A L 1.1 SCOPE

This Standard specifies requirements for metallic body pipe fittings and connectors for use with copper tube, stainless steel pipe, stainless steel tube and adaptor fittings for connection to other pipe materials in water supply and gas systems where the continuous working temperature—

(a) does not exceed 95ºC, and where the maximum operating pressure does not exceed 1 400 kPa; or

(b) is the ambient supply temperature, where the maximum operating pressure does not exceed 2 100 kPa Products designed for a temperature in excess of 95°C are included where tested to the appropriate temperature criteria

1.2 APPLICATION

Fittings, end connectors, and couplings shall comply with Sections 1 to 11 as follows: (a) Capillary fittings—copper and copper alloy Section 5 (b) Compression fittings Section 6 (c) Threaded-end connectors Section 7 (d) Union end connectors and couplings Section 8 (e) Roll-grooved jointing end connectors and coupling body Section 9 (f) Mechanical jointing push-on and press-fit end connectors Section 10 (g) Other copper alloy fittings Section 11 Fittings such as end connectors intended to join alternative pipe systems made from other materials (e.g plastics) shall also comply with the relevant dimensional and performance requirements of the appropriate Australian, New Zealand or Joint Australian/New Zealand Standard for the alternative pipe system

For limitations on use of fittings in gas applications, refer to the AS/NZS 5601 series and AS/NZS 4645.1

Metallic systems, fittings, end connectors and couplings joined to alternative systems may be certified to this Standard (AS 3688)

Means for demonstrating compliance with this Standard are given in Appendix A

Fittings used for gas applications have modified performance requirements relevant to the AS/NZS 5601 series Fittings used exclusively for gas do not need to comply with the requirements of AS/NZS 4020

1.3 REFERENCED DOCUMENTS

The documents referred to in this Standard are listed in Appendix B

1.4 DEFINITIONS

For the purpose of this Standard, the definitions given in AS/NZS 3500.0 and those below apply

1.4.1 Fabricated joint or fitting

A joint or fitting that includes a brazed or welded section 1.4.2 Fastening pipe thread

A pipe thread with geometry suitable for screw fastening as detailed in AS 1722.2 or ISO 228.1

NOTE: Where these threads are used on pipes or fittings for conveying fluids, pressure-tight joints are not made on the threads; a pressure-tight seal is effected by means other than thread interference (e.g union couplings, compression connections and other sealing mechanisms)

1.4.5 Press tool and jaw

A mechanical device which, by closing jaws, causes radial compression of the plumbing fitting end onto the connecting tube

1.4.6 Push-on end connectors

A plumbing fitting end which incorporates an elastomeric sealing element and a grab ring which makes a mechanical and leaktight connection when it is pushed onto a tube

1.4.7 Sealing pipe thread

A pipe thread with geometry suitable for sealing by interference on the thread, utilizing a thread taper, intended for connecting pipes and fittings with a pressure-tight joint used for conveying fluids as detailed in AS ISO 7.1

1.4.8 Threaded-end connector

A connecting end on a pipe or fitting that is threaded either on an internal surface or external surface so that it can be used to make a threaded joint

1.4.9 Union end connector

A connector end for a pipe or fitting that allows a union joint to be made 1.4.10 Working temperature

The operating temperature of pipe work system which is influenced by either the temperature of the water being transported or the environmental conditions in gas installations

1.5 DESIGNATION OF SIZE

The size by which a fitting is designated shall be the nominal size of the pipes or tubes with which it is to be jointed

The method of specifying the sizes of fittings shall be in accordance with Appendix C

NOTE: Designated sizes do not necessarily indicate exact dimensions as these details are given in the relevant tables herein

1.6 MARKING

1.6.1 Space for mark of certifying body

Where required, provision shall be made on every fitting for the inclusion of the certification mark The area shall be of sufficient size to accommodate the mark Continuously threaded products shall be exempt from this requirement Indented marks shall be applied in such a way as not to deform or otherwise damage the fitting

NOTE: Manufacturers may agree with the certifying body regarding whether or not the mark will be applied to individual components in a fitting that passes the required tests

1.6.2 Components

Component parts of a fitting that may be sold separately shall bear the manufacturer’s identification mark as a minimum requirement The only exception is that in the event the component is too small to be marked effectively with the manufacturer’s identification mark and the other marking as defined in this Standard, then the item being offered for sale shall be suitably packaged and the packaging marked in accordance with the marking requirements nominated

(c) Number of this Standard

(d) Maximum service temperature of water fittings (where designated less than 95°C) (e) DR brass fittings shall be marked as per the requirements of AS 2345

(f) Press fittings used for gas applications shall be colour identified as specified in Clause 10.5

NOTE: Compliance with WaterMark is achieved in accordance with the rules of the WaterMark Certification Scheme

S E C T I O N 2 M A T E R I A L S 2.1 SCOPE OF SECTION

This Section specifies the material requirements for fittings and connectors

2.2 MATERIALS IN CONTACT WITH DRINKING WATER

Materials in contact with drinking water shall comply with AS/NZS 4020 with a scaling factor of 0.01

Metallic components made from a single material may be pre-qualified by use of simulated samples for certification in accordance with Appendix L

2.3 METALLIC MATERIALS

2.3.1 Corrosion-resistant metallic materials

For the purpose of this Standard, the following materials are deemed to be corrosion-resistant:

(a) Copper, as specified in Clause 2.3.2

(b) Copper alloy, as specified in Clauses 2.3.3 and 2.3.4 (c) Stainless steel, as specified in Clause 2.3.5

(d) Material for springs, as specified in Clause 2.5(b) (e) Other materials, as specified in Clause 2.5

2.3.2 Copper

Copper shall comply with the following:

(a) Tubular components—Copper shall be alloy designation C 10200 or C 12200 of AS 2738

(b) Hot pressings—AS 2738 2.3.3 Copper alloy

Copper alloy shall comply with EN 13388 or the following:

(a) Castings—AS 1565 or ASTM B584 and a lead content of less than 4.5% (b) Hot pressings—AS/NZS 1568

(c) Rod for machined parts—AS/NZS 1567

(d) Tubular components—Copper alloy tubes complying with AS 1572 alloy designation C 26130 Where bent or stamped in the fabrication process, the pipe shall be sufficiently stress-relieved, so that it is capable of passing the stress corrosion test specified in ISO 6957 Clause 8, using a test solution of pH 9.5 without prior pickling, after all fabrication processes are completed

NOTE: ISO 6957 requires that the entire component is tested before any coating or plating operation

Pressed end fittings manufactured from copper-zinc alloys containing more than 10% zinc shall be capable of passing the stress corrosion test specified in ISO 6957 Clause 8, using a test solution of pH 9.5 without prior pickling, after all pressing processes are completed 2.3.4 Dezincification-resistant (DR) copper alloy

Copper/zinc alloy components designed for use in contact with water or soils shall comply with AS 2345

2.3.5 Stainless steel

Stainless steel in contact with water or gas shall comply with ASTM A276 for wrought components or ASTM A269 for tubular components, Grades 316, 316L, 316Ti, UNS S31803 (2205) or equivalent

Stainless steel not in contact with water or gas shall comply with ASTM A276 for wrought components or ASTM A269 for tubular components, Grades 304, 304L, 304LN, 316, 316L, 316Ti, UNS S31803 (2205) or equivalent

2.4 PLASTIC COMPONENT MATERIALS 2.4.1 General

Plastic materials used for components in fittings and connectors shall be of a type recommended by the polymer manufacturer as suitable and appropriate for use Characteristics to be taken into account shall include, but not be restricted to, aging, compatibility and resistance to variations in water quality and elevated temperatures

(a) Filler metals Filler metal shall be one of the following:

(i) Silver brazing alloy containing not more than 0.05% cadmium, complying with AS 1167.1

(ii) Copper-phosphorous brazing alloys complying with AS 1167.1 with a minimum of 1.8% silver

(iii) Solder complying with the requirements of AS 1834.1 and having a maximum of 0.1% lead

(b) Materials for springs shall comply with one of the following: (i) Stainless steel to ASTM A313

(ii) Phosphor bronze to AS 2738, C51000 and C51800

NOTE: Other materials may be used, provided that they meet the performance criteria of this Standard and of the relevant materials Standard

(c) Washers and sealing rings

Sealing materials shall be appropriate for the application, as follows: (i) Elastomeric seals for water systems shall comply with AS 1646

(ii) Elastomeric seals for gas press fit shall be yellow HNBR material and comply with EN 549

(d) Lubricants

Lubricants shall be as follows:

(i) Drinking water systems shall comply with Clause 2.2 (ii) Gas systems shall be suitable for use with all gases

S E C T I O N 3 D E S I G N A N D D I M E N S I O N S 3.1 SCOPE OF SECTION

This Section specifies design requirements that are common to all fittings including components, unless otherwise specified in this Standard

The thickness of the shoulder or stop, measured axially, shall be not less than 1.5 mm

TABLE 3.2

MINIMUM MEAN DIAMETER OF WATERWAY AND HEIGHT OF SHOULDER OR STOP FOR COPPER AND COPPER ALLOY FITTINGS

Nominal size

Minimum mean waterway diameter

Minimum sphere diameter

Minimum overall height of shoulder or stop

6 8 10

4.0 5.5 7.0

3.0 4.5 5.7

0.2 0.2 0.2 15

18 20

9.9 13.0 15.6

8.6 11.7 14.3

0.2 0.2 0.2 25

32 40

21.4 27.5 33.7

20.1 26.2 32.4

0.2 0.2 0.2 50

65 80

46.0 58.3 69.8

44.7 57.0 68.5

0.2 0.5 0.5 90

100 125

82.2 94.5 119.1

80.9 93.2 117.8

0.5 0.5 0.7 150

200

142.5 191.8

141.2 190.5

0.7 0.7

3.3 SLIP FITTINGS

Fittings supplied without an internal tube stop shall comply in all other respects with this Standard The bore of the fitting shall be sized to allow the fitting to slide over the appropriate nominal size of specified tube

3.4 SPIGOTS

Where ends are provided as plain spigots for copper and copper alloy fittings, the outside diameter of the spigot shall comply with the outside diameter of the specified tube of hard-drawn copper tubes complying with AS 1432 and for capillary fittings the length shall comply with Column 3 of Table 5.2.1

3.5 FIXING DEVICE

To assist with installation, fittings may be provided with lugs or similar fixing devices

3.6 WATERWAYS 3.6.1 General

For double-ended fittings, the minimum mean waterway diameter shall be based on the requirement for the nominal size of the smaller end of the fitting

For branch fittings, the waterway in each portion of the fitting shall be based on the nominal size of the end connector on each portion of the fitting

Dedicated fittings for specific applications may have a reduced waterway subject to negotiations between the manufacturer and the user

3.6.2 Copper and copper alloy

The minimum mean diameter of the waterway through a fitting shall be as specified in Table 3.2 The diameter may be established by measurement or by means of a sphere of diameter specified in Table 3.2

3.6.3 Stainless steel

The maximum deformation of a circular section waterway shall not exceed 2% of the minimum mean waterway diameter, excluding any roll-grooved section

3.6.4 Stainless steel press fit

The minimum mean diameter of the waterway through a fitting shall be as specified in Table 3.6.4

waterway diameter mm

3.7.2 Minimum thickness of unspecified metal parts

Unless specified elsewhere in this Standard, the minimum wall thickness at any point shall be as given in Table 3.7.2(A) or 3.7.2(B), as appropriate

TABLE 3.7.2(A)

MINIMUM WALL THICKNESS OF UNSPECIFIED METAL PARTS— COPPER AND COPPER ALLOY FITTINGS

SPECIFIED BY DIMENSION

Nominal size

Sections subject to hydrostatic

pressure

Sections not subject to hydrostatic

pressure

Formed from

tube DN mm mm mm

6 8 10

1.8 1.8 1.8

1.1 1.1 1.1

0.6 0.6 0.77 15

18 20

1.8 1.8 1.8

1.1 1.1 1.1

0.77 0.88 0.88 25

32 40

2.2 2.2 2.8

1.4 1.4 1.7

1.04 1.04 1.04 50

65 80

2.8 3.2 3.2

1.7 1.9 1.9

1.04 1.04 1.39 90

100 125

3.2 3.4 3.4

1.9 2.1 2.1

1.39 1.47 1.47 150

200

3.4 3.4

2.1 2.1

1.78 1.83

Formed from pipe 10S mm 40S mm 15

20 25

2.11 2.11 2.77

2.77 2.87 3.38 32

40 50

2.77 2.77 2.77

3.56 3.68 3.91 65

80 90

3.05 3.05 3.05

5.16 5.49 5.74 100

125 150

3.05 3.40 3.40

6.02 6.55 7.11 200

250 300

3.76 4.19 4.57

8.18 9.27 9.53

3.8 PIPE THREADS 3.8.1 General

All pipe threads shall comply with the relevant requirements of Clauses 3.8.2 and 3.8.3, after manufacture is completed, including any plating operation All threads shall be chamfered at the face to an included angle of not less than 60° and not greater than 90° for not less than half the thread pitch or more than one thread pitch

NOTE: For normal plumbing applications, threads are right-hand In certain applications, left-hand threads may be specified, e.g gas and recycled water

3.8.2 Sealing pipe threads

Connections intended to be pipe threads where pressure-tight joints are made on the threads, shall comply with the relevant requirements of AS ISO 7.1

Threads shall comply with the following:

(a) External threads Series R (b) Internal threads Series Rp or Rc 3.8.3 Fastening pipe threads

Connections intended to be pipe threads where pressure-tight joints are not made on the threads to effect the connection, shall comply with the relevant requirements of AS 1722.2 or ISO 228.1

Threads shall comply with the following:

(a) External threads Series GB (b) Internal threads Series G 3.8.4 Fastening thread engagement—Assembled joints

Threaded joints that will be disassembled for any purpose or assembled in a permanent manner shall have the minimum number of full threads engaged as specified in Table 3.8.4 The number of full threads shall be counted when the threaded joint is assembled with washers or seals

TABLE 3.8.4

NUMBER OF THREADS ENGAGED

Nominal thread size

Minimum number of full threads engaged ≤G1.0

>G1.0 ≤G2.0 >G2.0 ≤G3.0 >G3.0 ≤G4.0 >G4.0

3 4 5 6 7

3.8.5 Other thread forms

Other thread forms shall comply with a recognized Standard

3.9 FABRICATED FITTINGS

Fittings with fabricated joints shall be capable of complying with Clause 4.3 The minimum wall thickness, not including the thread depth, of each part of a joint shall comply with Clause 3.7 The joint shall be mechanically locked after fabrication by methods such as, but not restricted to, burred or peened over, welding, soldering/brazing or use of jointing compounds

3.10 GEOMETRY OF FITTINGS The following applies:

(a) Machined parts, when assembled, shall be coaxial, parallel and cylindrical within the limits required for the particular material and design

(b) End connectors shall be in line with the appropriate axis of the fitting (c) Angles of fittings shall be ±1° of the manufacturer’s nominated designation 3.11 PLATING AND OTHER SURFACE FINISHES

The following plating and other finishes are optional:

(a) Metal finishes may be applied to surfaces If applied, threaded-ends of fittings shall comply with Clause 3.8

(b) Other finishes may be applied to surfaces but not to threaded-end connections and mating parts of union ends

3.12 FINISH AND WORKMANSHIP Fittings and components shall be—

(a) sound and free from folds, laps, blisters, laminations, blowholes, and other defects that affect the performance or function of the fitting in service;

(b) supplied free of sand, grit, and swarf; and

(c) free of burrs, fins, irregularities and sharp edges that would affect the performance or function of the fittings in service

Castings may be plugged, stopped, or patched but only by a vacuum impregnation process with a material complying with Clause 2.2, and hydrostatically tested in accordance with Clause 4.2

S E C T I O N 4 P E R F O R M A N C E R E Q U I R E M E N T S 4.1 SCOPE OF SECTION

This Section specifies requirements for testing the performance of particular fittings

Where a fitting range is of the same design, unless otherwise stated, testing shall be carried out on the largest, the smallest and the intermediate size of fitting

4.2 LEAKTIGHTNESS UNDER INTERNAL PRESSURE TEST

When tested in accordance with Appendix D, fittings shall show no signs of weeping, cracks, leakage or other failure For the purpose of type testing, machined cast fittings shall be subjected to both the hydrostatic pressure test and pneumatic pressure test Other fittings shall be subjected to the hydrostatic pressure test only

4.3 STRENGTH OF FABRICATED JOINT (TORQUE TEST)

When tested in accordance with Appendix E, the fabricated joint shall show no signs of cracking, splitting, thread damage or other failure

NOTE: This test is for a fabricated joint, and the twisting of copper tube tails (away from the joint) does not constitute a failure of the test

4.4 STRENGTH OF JOINT ASSEMBLY (PRESSURE CYCLING TEST)

When tested in accordance with AS/NZS 3707 and Appendix F at 95°C or the manufacturer’s nominated maximum service temperature, a joint assembly shall withstand not less than 50 000 pressure cycle pulsations

At the completion of cyclic testing, the joint assembly shall be depressurized and removed from the immersion bath and permitted to stabilize at ambient temperature for not less than 4 h, after which it shall be subjected to a hydrostatic pressure test of not less than 2 000 kPa for 60 +15, −0 min

The joint assembly shall show no signs of cracks, leakage or other failure at any stage of testing procedures

4.5 RESISTANCE TO PULL-OUT OF ASSEMBLED JOINTS

When tested in accordance with Appendix G at 95°C or the manufacturer’s nominated maximum service temperature, a pipe shall not pull out of the assembled fitting

4.6 STRENGTH OF NUT AND ASSEMBLY (TORQUE TEST)

When tested in accordance with Appendix H, the nut and assembly shall show no signs of splitting, cracking or thread damage

4.7 LEAKTIGHTNESS UNDER INTERNAL PRESSURE WHILST SUBJECTED TO BENDING

When tested in accordance with Appendix I, the fitting under test shall show no visible signs of leakage or damage Water fittings shall be tested under hydrostatic pressure and gas fittings under pneumatic pressure

4.8 METHOD FOR DETERMINING COMPATIBILITY OF WATER FITTINGS WITH PIPE

When tested in accordance with Appendix J:

(a) Push-on fittings shall withstand internal pressures in the pipe of 1 400 kPa at a temperature of 95 ±2°C for 1 000 +50, −0 h, and 2 000 kPa at a temperature of 20 ±5°C for 170 +24, −0 h

(b) Press-fit fittings shall withstand internal pressures in the pipe of 1 400 kPa at a temperature of 95 ±2°C for 48 hours, followed by a pressure of 2 000 kPa for one hour at 20 ±5°C

4.9 ROLL-GROOVED ASSEMBLY (JOINT PRESSURE RESISTANCE TEST)

When assembled in accordance with the manufacturer’s instructions and tested in accordance with Appendix K at 2 000 kPa or 1.5 times the specified maximum operatingpressure, the joint assembly shall not leak

4.10 VACUUM TEST FOR LEAKTIGHTNESS OF JOINTS WITH TUBE UNDER VACUUM

When assembled with tube and tested in accordance with Appendix M at a test pressure of −80 ±5 kPa for one hour, the change in pressure shall not be greater than 5 kPa

4.11 LEAKTIGHTNESS UNDER INTERNAL PNEUMATIC PRESSURE

When tested in accordance with Appendix N, at pneumatic pressure of 2.2 kPa for 10 minutes, followed by a second test at 11 kPa for 10 minutes and a third test at 1.1 × maximum operating pressure (500 kPa) for 10 minutes, the fitting under test shall show no visible signs of leakage

4.12 RESISTANCE OF GAS PRESS FITTINGS TO TEMPERATURE CYCLING When tested in accordance with Appendix O to a hot temperature of 100 ±2 C and a cold temperature of −20 ±2 C and subsequently tested for leaktightness under internal pneumatic pressure in accordance with Appendix N, the fittings shall not show any visible signs of leakage

4.13 RESISTANCE OF PRESS FITTING JOINTS AND TUBES TO VIBRATION 4.13.1 Water press fittings

When tested in accordance with Appendix P at 1 500 ±50 kPa, ±1 mm deflection, 1 000 000 cycles, at a frequency of 20 Hz, the fittings shall not show any visible signs of leaking at the end of the testing

Four test samples for each size shall be subject to each assessment 4.13.2 Gas press fittings

When tested in accordance with Appendix P at atmospheric pressure, ±1 mm deflection 1 000 000 cycles, at a frequency of 20 Hz and subsequently tested for leaktightness under internal pneumatic pressure in accordance with Appendix N, the fittings shall not show any visible signs of leakage throughout the complete testing period

Four test samples for each size shall be subject to each assessment

4.14 RESISTANCE OF GAS PRESS FITTINGS TO HIGH TEMPERATURE

When tested in accordance with Appendix Q at 650 ±10ºC and 100 ±10 kPa for 30 minute test duration, the leakage rate of nitrogen shall not exceed 150 dm³/h

S E C T I O N 5 C A P I L L A R Y F I T T I N G S — C O P P E R A N D C O P P E R A L L O Y

5.1 SCOPE OF SECTION

This Section specifies the dimensions, tolerances and performance requirements for capillary fittings designed with short engagement sockets intended for use with brazing alloys

5.2 DESIGN AND DIMENSIONS 5.2.1 General

Capillary fittings shall conform to the dimensions specified in Figure 5.2.1 and Table 5.2.1 5.2.2 Internal diameter of socket

The internal diameter at any point of the socket over the length that is designed to make close contact with the tube shall be within the limits given in Column 2 of Table 5.2.1, as appropriate to the size of the fitting

Where fittings manufactured from the tube are slightly oval, they shall be considered satisfactory provided they can accept a GO gauge of diameter equal to the appropriate minimum diameter specified in Column 2 of Table 5.2.1 when reasonable hand pressure is exerted This GO gauge may be profiled at the nose end for a length not exceeding 0.5 mm 5.2.3 Length of socket

For that surface of the socket that is designed to make close contact with the tube, the minimum length shall be the dimension given in Column 3 of Table 5.2.1, as appropriate to the size of fitting For plain sockets, the length shall be the distance from the face of the fitting to that point on the shoulder of the socket against which the inserted tube abuts 5.2.4 Wall thickness

The minimum wall thickness of the fittings at any point (dimension X) shall be not less than the values given in Column 4 or 5 of Table 5.2.1, as appropriate

NOTE: The minimum wall thickness of the fitting depends on the type of material used

5.2.5 Branches of different nominal size

Where a fitting has branches of different nominal sizes then the thickness in any branch shall be as specified for the nominal size of that branch

5.2.6 Waterway diameter

The waterway diameter shall comply with Clause 3.6

NOTE: The top half of the section indicates a typical machined socket and the bottom half indicates a typical formed socket

FIGURE 5.2.1 DIMENSIONS OF CAPILLARY SOCKETS FOR USE WITH BRAZING ALLOY

DN

Internal diameter of socket (dimension A)

mm

Length of socket surface in contact with tube

(dimension B) mm

Wall thickness (dimension X)

Tubular section*

mm

Forged and other sections†

mm

Min Max Min Minimum at any point

Minimum at any point 10

15 18

9.55 12.72 15.90

9.6512.8216.00

7.5 7.5 7.5

0.77 0.77 0.88

1.8 1.8 1.8 20

25 32

19.07 25.42 31.77

19.1725.5631.91

7.5 7.5 7.5

0.88 1.04 1.04

1.8 2.2 2.2 40

50 65

38.12 50.82 63.55

38.3251.0263.95

7.5 7.5 7.5

1.04 1.04 1.04

2.8 2.8 3.2 80

90 100

76.25 88.95 101.65

76.6589.35102.05

11.1 11.1 11.1

1.39 1.39 1.47

3.2 3.2 3.4 125

150 200

127.05 152.45 203.25

127.45153.05203.85

11.1 14.2 14.2

1.47 1.78 1.83

3.4 3.4 3.4 * For materials complying with Clauses 2.3.2 (a), 2.3.3 (d) and 2.3.5

† For forged and other material complying with Clauses 2.3.3 (a), (b), (c) and 2.3.5

S E C T I O N 6 C O M P R E S S I O N F I T T I N G S 6.1 SCOPE OF SECTION

This Section specifies the design requirements for copper alloy and stainless steel compression fittings that are manufactured either to the dimensions or performance requirements of this Standard

NOTE: Olive type compression fittings may not be suitable for gas applications Refer to AS/NZS 5601 series

6.2 DESIGN

6.2.1 Copper alloy compression fittings manufactured to dimensions

Copper alloy compression fittings manufactured to the dimensional requirements of this Standard shall conform to the dimensions given in Figures 6.2.1(A) and 6.2.1(B) Where a dimension is not given, it shall comply with the design requirements of Section 3

6.2.2 Compression fittings complying with performance requirements

Fittings of similar designs or other designs are permitted subject to compliance with Section 3 and Clause 6.3 of this Standard For copper alloy fittings, the minimum wall thickness of the extreme end of a cone shall be not less than that specified in Clause 6.2.1

6.3 PERFORMANCE REQUIREMENTS

6.3.1 Compression fittings complying with Clause 6.2.1

Compression fittings complying with Clause 6.2.1 shall be capable of complying with Clauses 4.2, 4.3 and 4.5

6.3.2 Compression fittings complying with Clause 6.2.2

Fittings complying with Clause 6.2.2 shall comply with Clauses 4.2, 4.4, 4.5 and 4.6, and where applicable, Clause 4.3

DN

Min mm

Max mm

Min.mm

Max.mm

Min.mm

Max.mm

Min.mm

Min.mm

(Thread size designation) (see Note 3) 10

15 18

9.6 12.8 16.0

9.9 13.0 16.2

7.09.913.3

7.310.513.6

8.912.015.2

9.112.315.5

6 6 8

12.715.719.0

G 3⁄8 G 1⁄2 G 5⁄8 20

25 32

19.1 25.5 31.8

19.4 25.7 32.0

15.821.627.9

16.422.428.7

17.723.930.3

18.024.230.5

9 9 9

21.828.534.9

G 3⁄4 G 1 G 11⁄4 40

50 65

38.2 50.9 63.6

38.4 51.1 63.8

34.246.759.4

35.146.959.6

36.648.561.2

36.948.861.5

121212

41.255.568.2

G 11⁄2 G 2 G 21⁄2 * Fastening pipe thread to AS 1722.2 or ISO 228.1, Series G or GB

FIGURE 6.2.1(A) COMPRESSION ENDS—FLARED

Rubber olive (croxed fittings only)

Metal or plastic olive

(b) Compression union, croxed(a) Compression union, olive

10.07.0 to

Min angle(see Note 1)90 ±2°

90 ±2°

1.2 max.45 ±1°

Nominal size

Min mm

Max mm

Min.mm

Max.mm

Min.mm

Min.mm

(Thread size designation) (see Note 3) 10

15 18

9.6 12.8 16.0

9.9 13.0 16.2

10.013.216.4

10.213.416.6

6 6 8

12.715.719.0

G 3⁄8 G 1⁄2 G 5⁄8 20

25 32

19.1 25.5 31.8

19.4 25.7 32.0

19.726.032.4

19.926.332.7

9 9 9

21.828.534.9

G 3⁄4 G 1 G 11⁄4 40

50 65

38.2 50.9 63.6

38.4 51.1 63.8

38.851.564.2

39.151.964.6

121212

41.255.568.2

G 11⁄2 G 2 G 21⁄2 * Fastening pipe thread to AS 1722.2 or ISO 228.1, Series G or GB NOTES:

1 Angle of olive not to exceed angle in body or nut

2 Size of tube stop and location (see Clause 3.2) Slip fitting to be provided without shoulder

Tables 3.7.2(A) and 3.7.2(B)

4 Wall thickness at threaded section as specified in Figures 7.2(A) and 7.2(B) 5 Dimension X in (b) to be sized from the maximum mean outside diameter of the

tube

DIMENSIONS IN MILLIMETRES

FIGURE 6.2.1(B) COMPRESSION ENDS—OLIVE AND CROXED

S E C T I O N 7 T H R E A D E D - E N D C O N N E C T O R S 7.1 SCOPE OF SECTION

This Section specifies the dimensions, tolerances, and thread details for threaded-end connectors

7.3.1 Thread stop for fastening thread end connectors

Internal fastening threads shall be provided with a stop at the end of the thread for at least 25% of the circumference of the thread The stop shall be one of the following:

(a) Plain end A thread runout with at least 1.5 mm of unremoved material after the thread finishes (see Figure 7.2(A) for typical details)

(b) Shoulder A shoulder at least 1.5 mm thick (see Figure 7.2(A) for typical details) 7.3.2 Wrenching flats

For wrenching flats the following applies:

(a) Fittings with externally threaded ends shall be provided with 2, 4, 6 or 8 wrenching flats or be of a design that allows tightening to the torques specified in Appendix H without the use of special tools If hexagonal or octagonal, the wrenching flats shall comply with dimensions F of Table 7.2(B) and E of Table 7.2(D) Where wrenching flats are chamfered, the minimum length at corners shall be at least 75% of dimension E of Table 7.2(B) or D of Table 7.2(D)

(b) Fittings with two or more internally or externally threaded connections may have only one set of wrenching flats and, where fittings are provided with a fixing device in accordance with Clause 3.5 or are of such a physical shape that tightening can be achieved with readily available tools, no wrenching flats need be provided

7.3.3 Thickness of threaded-end connectors with fastening threads

The minimum wall thickness, including depth of thread, shall be as specified in dimension C of Table 7.2(A) Where a fitting has branches of different nominal sizes, then the thickness in any branch shall be as specified for the nominal size of that branch

7.3.4 Sealing thread end connectors

Male tapered threaded-ends of fittings shall be in accordance with Figure 7.2(D) and Table 7.2(D)

Female threaded ends of fittings shall be in accordance with Figure 7.2(C) and Table 7.2(C)

7.4 PERFORMANCE REQUIREMENTS

Fittings complying with this Section shall be capable of complying with Clauses 4.2 and 4.3

(i) Internally threaded end—Plain (ii) Internally threaded end with shoulder stop and hexagonal or octagonal wrenching flats

FIGURE 7.2(A) INTERNAL PARALLEL FASTENING THREADS—AS 1722.2/ISO 228.1

Minimum thread length including

run out

Minimum wall thickness including thread

Minimum thread length including

run out

Run out or undercut

(mm)

Minimum wall thickness including thread

Minimum axial length of wrenching flat

Minimum dimension across wrenching flats

3 Chamfer at thread start shall comply with Clause 3.8

O p t i o n a l b e a d , h ex a g o n a lo r o c t a g o n a l w r e n c h i n g

FIGURE 7.2(C) INTERNAL PARALLEL SEALING THREADS—AS ISO 7.1

TABLE 7.2(C)

INTERNAL PARALLEL SEALING THREADS—AS ISO 7.1

Thread designation

Minimum accommodation

length

Minimum outside wall on Rp thread

Minimum optional bead

size

Minimum thread length with free

3 Chamfer at thread start shall comply with Clause 3.8.

Gauge length (mm)

Minimum fitting allowance

Minimum axial length of wrenching

Minimum across wrenching

Maximum bore inside threads

R 1/8 3.1 4.9 2.5 4.0 10.0 4.9 R 1/4 4.7 7.3 3.7 4.0 14.0 7.8 R 3/8 5.1 7.7 3.7 5.0 18.0 11.3 R 1/2 6.4 10.0 5.0 5.0 22.0 15.0 R 3/4 7.7 11.3 5.0 6.0 27.5 20.5 R 1 8.1 12.7 6.4 6.0 34.5 25.9 R 1 1/4 10.4 15.0 6.4 8.0 43.0 34.5 R 1 1/2 10.4 15.0 6.4 9.0 49.0 39.2 R 2 13.6 18.2 7.5 9.0 61.0 51.0 R 2 1/2 14.0 21.0 9.2 9.0 77.0 65.8 R 3 17.1 24.1 9.2 9.0 90.0 78.5 R 4 21.9 28.9 10.4 9.0 115.0 103.3 NOTES:

1 Minimum mean diameter of waterway shall comply with Clause 3.6 2 Minimum wall thickness shall comply with Clause 3.7

3 Chamfer at thread start shall comply with Clause 3.8.

S E C T I O N 8 U N I O N E N D C O N N E C T O R S A N D C O U P L I N G S

8.1 SCOPE OF SECTION

This Section specifies the performance requirements for union end connectors and union couplings

8.2 DESIGN

8.2.1 Minimum wall thickness

The minimum wall thickness of union end connectors and couplings tails shall comply with Clause 3.7

The minimum wall thickness of union end connectors and coupling nuts shall comply with Figure 7.2(A) and Table 7.2(A)

8.2.4 Performance requirements

Fittings complying with this Section shall be capable of complying with Clauses 4.2 and 4.6

S E C T I O N 9 R O L L - G R O O V E D J O I N T I N G E N D C O N N E C T O R S A N D C O U P L I N G B O D Y

9.1 SCOPE OF SECTION

This Section sets out requirements for roll-grooved jointing end connectors for water supply systems that incorporate a ductile iron coupling to join metallic fittings to the following tubes and pipes:

(a) Copper tubes to AS 1432

(b) Stainless steel pipes to ASME-B36.19

The roll-grooved profile may be either factory manufactured or field applied

Roll-grooved jointing end connections are for use where the normal operating temperature does not exceed 95°C, with peaks up to 110°C for short periods of time

9.2 MATERIALS

For roll-grooved couplings the following shall apply:

(a) Housing The body of the coupling shall be manufactured from either—

(i) ductile cast iron complying with ASTM A395 Grade 65-45-15 and ASTM A536 Grade 65-45-12 (equivalent to AS 1831, minimum Grade 450-10) and coated with a suitable anti-corrosive finish; or

(ii) stainless steel complying with ASTM A351, A743 and A744 Grade CF-8M (b) Elastomeric gasket The gasket material utilized as the seal in the coupling shall

comply with Clause 2.5(c)

(c) Fasteners Fasteners utilized to assemble the coupling shall be heat-treated carbon steel conforming to the physical properties of ASTM A183 or ASTM A449 with a minimum tensile strength of 758 000 kPa and be protected from corrosion by electro-zinc plating

9.3 DESIGN 9.3.1 Fittings

9.3.1.1 General design and dimensions

For general design and dimensions of fittings, the following applies:

(a) Copper and copper alloy The general design and dimensions shall comply with the requirements of this Standard (i.e AS 3688)

(b) Stainless steel The general design and dimensions shall comply with the relevant requirements of ASTM A403

9.3.1.2 Roll-grooved connection ends

Roll-grooved connection ends shall comply with the dimensional requirements given in— (a) Figure 9.3.1.2(A) for copper ends; or

(b) Figure 9.3.1.2(B) for stainless steel ends 9.3.1.3 Adaptor connection ends

End connectors for connection to either copper or copper alloy tubes or fittings shall comply with this Standard (i.e AS 3688)

Other connection ends shall comply with the requirements of the Australian Standard that is relevant to the connection

9.3.1.4 Fabricated end connectors

End connections with fabricated joints shall be capable of complying with the performance requirements of Clause 9.4

9.3.2 Coupling adjustment

For copper tube applications, the design of the coupling shall include an angled pad so as to allow general adjustment for minor inconsistencies of the rolled grooved profile and always maintain pad-to-pad contact

Mean outside diameter

Gasket seat

Groove width

Groove diameter

Groove depth

Allowable flare diameter

±0.8 +0.8/−0.0+0/–0.5 Ref onlyMax DN 50 50.80 15.87 7.60 48.21 1.25 53.1 DN 65 63.50 15.87 7.60 60.88 1.27 65.8 DN 80 76.20 15.87 7.60 73.56 1.27 78.5 DN 100 101.60 15.87 7.60 98.78 1.35 103.9 DN 125 127.00 15.87 7.60 123.67 1.60 128.8 DN 150 152.40 15.87 7.60 149.05 1.60 154.7

FIGURE 9.3.1.2(A) DIMENSIONS OF ROLL-GROOVED JOINTING END CONNECTORS AND COUPLING BODY—COPPER TUBES TO AS 1432

Mean outside diameter

Gasket seat

Groove width

Groove diameter

Groove depth

Allowable flare diameter

IPS SIZES PER ASME B36.19

9.4 PERFORMANCE REQUIREMENTS AND TEST METHODS

Roll-grooved fittings and assembled joints shall comply with Clauses 4.2, 4.3, 4.4, 4.5, 4.7 and 4.9

9.5 INSTALLATION INSTRUCTIONS The instructions shall—

(a) be in accordance with AS/NZS 3500.1 and AS/NZS 3500.4; (b) detail the procedures for assembling rolled grooved joints;

(c) detail the methods of forming a roll-grooved end on a pipe on site; and

(d) include recommendations for the tools and equipment to be used for forming the roll-grooved end

S E C T I O N 1 0 M E C H A N I C A L J O I N T I N G P U S H - O N A N D P R E S S - F I T E N D C O N N E C T O R S 10.1 SCOPE OF SECTION

This Section specifies requirements for mechanical jointing end connectors that comply with the following:

(a) Copper and copper alloy body push-on end connectors for use with copper tube to AS 1432 in water supply systems

(b) Copper and copper-alloy body press-fit end connectors for use with copper tube to AS 1432

(c) Stainless steel body press-fit end connectors for use with stainless steel tube to EN 10312 series 2 or ASTM A269 and compliant with AS 5200.053

Press fit systems for natural gas and liquefied petroleum gas supply systems where the normal working temperature does not exceed 70°C, and where the maximum operating pressure does not exceed 500 kPa Temperature excursions to 100°C are allowable for applications where systems are exposed to direct sunlight

10.2 DESIGN 10.2.1 General

Clause 3.7 does not apply to this Section

10.2.2 Joint assembly—Push-on-end connectors

The design of the end connector assembly shall incorporate an O-ring or component to provide sealing and a grab ring to prevent longitudinal movement of the tube

10.2.3 Joint assembly—Press-fit end connectors

The design of the assembly shall incorporate an O-ring or component to provide sealing and is crimped with press tool and jaw to prevent longitudinal movement of the tube

10.3 PERFORMANCE

Mechanical jointing end connectors for water supply shall comply with Clauses 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.10 and 4.13 Clauses 4.10 and 4.13 are not applicable to push-on fittings

Press fit end connectors for gas applications shall comply with Clauses 4.3, 4.5, 4.6, 4.7, 4.10, 4.11, 4.12, 4.13 and 4.14

Where the design principle changes, performance testing shall be carried out to verify each design, e.g press fitting with additional gripping device

10.4 INSTALLATION INSTRUCTIONS

Installation instructions shall be provided They shall—

(a) be in accordance with AS/NZS 3500.1, 3500.4 and 3500.5, the AS/NZS 5601 series and AS/NZS 4645.1;

(b) detail procedures for assembling the fitting; and (c) include recommendations for tools and equipment

10.5 MARKING FOR GAS PRESS-FIT FITTINGS

In addition to the marking requirements in Clause 1.6, gas press fittings shall be durably and legibly marked on both sides with two yellow coloured rectangles containing the word ‘GAS’ Seals shall be colour-coded yellow

S E C T I O N 1 1 O T H E R C O P P E R A L L O Y F I T T I N G S

11.1 SCOPE OF SECTION

This Section specifies the dimensions, tolerances and thread details for fittings other than threaded connection ends and union connection ends

11.2 THREADED SOCKETS 11.2.1 General

The internal thread in sockets may be continued through the fitting without a thread stop or runout in the centre

11.2.2 The design of sockets with sealing pipe threads

The design shall comply with Figure 7.2(C) and Table 7.2(C) and the length of the threaded socket shall be a minimum of the two times the dimension given in Table 7.2(C), Column B

11.2.3 The design of sockets with fastening pipe threads

The design shall comply with Figure 7.2(A) and Table 7.2(A) and the length of the threaded socket shall be a minimum of two times the dimension given in Table 7.2(B), Column B

11.3 REDUCING BUSHES WITH OVERLAPPING INTERNAL AND EXTERNAL THREADS

11.3.1 General

Reducing bushes with overlapping internal and external threads and other designs for reducing bushes shall be permitted in any combination of nominal sizes, provided that the minimum wall thickness complies with the requirements of Clause 3.7

11.3.2 Reducing bushes with sealing pipe threads

Reducing bushes with sealing pipe threads shall comply with Figures 7.2(C) and 7.2(D) and Tables 7.2(C) and 7.2(D)

11.3.3 Reducing bushes with fastening pipe threads

Reducing bushes with fastening pipe threads shall comply with Figures 7.2(A) and 7.2(B) and Tables 7.2(A) and 7.2(B)

11.4 CONTINUOUSLY THREADED FITTINGS

Fittings may be supplied with continuous threads, which do not require wrenching provisions Threads shall comply with Clause 3.8.3(a) The internal bore shall comply with Clause 3.6 and the minimum wall thickness including thread shall comply with Table 7.2(B), Column D

11.5 PERFORMANCE REQUIREMENTS

Fittings complying with this Section shall be capable of complying with Clauses 4.2 and 4.3

A4 DEFINITIONS A4.1 Batch release test

A test performed by the manufacturer on a batch of components, which has to be satisfactorily completed before the batch can be released

A4.2 Production batch

Clearly identifiable collection of units, manufactured consecutively or continuously under the same conditions, using material or compound to the same specification

A4.3 Sample

One or more units of product drawn from a batch, selected at random without regard to quality

NOTE: The number of units of product in the sample is the sample size

A4.4 Sampling plan

A specific plan that indicates the number of units of components or assemblies to be inspected

A4.5 Type test batch

Schedule of units of the same type, identical dimensional characteristics, all the same nominal diameter and wall thickness, from the same compound The batch is defined by the manufacturer

A4.6 Type testing (TT)

Testing performed to demonstrate that the material, component, joint or assembly is capable of conforming to the requirements given in this Standard

A5 TESTING A5.1 Type testing

Table A5.1 sets out the requirements for type testing and frequency of re-verification A5.2 Batch release testing

Table A5.2 sets out the minimum sampling and testing frequency plan for a manufacturer to demonstrate compliance of product(s) to this Standard on an ongoing basis However, where the manufacturer can demonstrate adequate process control to the conformity assessment body, the frequency of the sampling and testing nominated by the manufacturer’s quality plan and/or documented procedures shall take precedence for the purposes of WaterMark product certification

A5.3 Retesting

In the event of a test failure, the products within the batch shall be tested at an appropriate acceptable quality level (AQL) and only those batches found to comply may be claimed and/or marked as complying with this Standard

A6 TYPE TESTS

The following tests are to be undertaken on product at a laboratory recognised by the conformity assessment body Other design requirements shall be verified by the submission of documentation that confirms compliance, e.g drawings

TABLE A5.1

MINIMUM SAMPLING AND TESTING FREQUENCY PLAN

Characteristic Clause Requirement Test Method Frequency

Materials 2.2 Materials in contact

with drinking water AS/NZS 4020‡

Change in material

2.3 Metallic materials As per relevant Standard

2.4 Plastic and

elastomeric material

As per relevant Standard

2.5 Other materials As per relevant Standard Capillary fittings

Design 5.2 Dimensions Direct measurement

Change in design Performance

Characteristic Clause Requirement Test Method Frequency Compression fittings

Design 6.2.1 Dimensions Direct measurement

Change in design Performance

Appendix F

Resistance to pull-out of assembled joints

Appendix G

Strength of nut and assembly (Torque test)

Change in design

Direct measurement/DV* Performance

Change in design

8.2.3 Provision for tightening

Appendix H

(continued) TABLE A5.1 (continued)