enviropipes 1308... · applications. these pipes are manufactured with a co-extrusion process in...

WSAA Product Appraisal Report No PA 1308 1

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ENVIROPIPES PRODUCT APPRAISAL REPORT 1308

ENVIROPIPE POLYETHYLENE PIPES FOR NON PRESSURE SEWERS AND STORMWATER DRAINS

AS/NZS 5065:2005 Polyethylene and polypropylene pipes and fittings for drainage and sewerage applications.

Publication date: - 5 December 2016

WSAA Product Appraisal 1308 2

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Document History

The following information indicates the changes made to this document.

Date Version File Location

4/11/2016 Peer Review Draft

U:\PP1 Industry Performance and Regulation\PP1-012 Product Appraisals\Civil Asset Infrastructure\2013\PA 1308 Part 2 Appraisal report package LF files\PA 13-08.2 Final draft\PA 1308 ENVIROPIPE PE AND PP PIPES FOR NON PRESSURE SEWERS AND SW DRAINS.docx

5/12/2016 Publication

U:\PP1 Industry Performance and Regulation\PP1-012 Product Appraisals\Civil Asset Infrastructure\2013\PA 1308 Part 2 Appraisal report package LF files\PA 13-08.2 Final draft\PA 1308 ENVIROPIPE PE AND PP PIPES FOR NON PRESSURE SEWERS AND SW DRAINS.docx

Peer Reviewers

Name/Title Organisation Date

Product Appraisal Technical Advisory Group WSAA 23/11/2016

Expert Panel WSAA 23/11/2016

Leith Forbes WSAA Contractor 27/9/2016

Carl Radford, Product Appraisal Manager WSAA 5/11/2016

Approvals

Name/Title Signature Date

Product Appraisal Technical Advisory Group Carl Radford 5/12/2016


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Overview of WSAA

The Water Services Association of Australia (WSAA) is the peak body of the Australian urban

water industry. Its members and associate members provide water and wastewater services

to approximately 16 million Australians and to many of our largest industrial and commercial

enterprises.

Urban water service providers have a critical role in ensuring that Australians have access

to adequate and high quality water services. As Australia ’s population continues to grow,

with most of this growth occurring in cities, that role becomes increasingly important.

WSAA’s vision is for Australian urban water utilities to be valued as leaders in the innovative,

sustainable and cost effective delivery of water services. WSAA strives to achieve this vision

by promoting knowledge sharing, networking and cooperation amongst members. WSAA

identifies emerging issues and develops industry-wide responses. WSAA is the national

voice of the urban water industry, speaking to government, the broader water sector and the

Australian community.

The Water Services Association of Australia (WSAA) is the peak industry body that supports

the Australian Urban Water Industry. Its members and associate members provide water and

sewerage services to approximately 20 million Australians and many of Australia’s largest

industrial and commercial enterprises.

The Association facilitates collaboration, knowledge sharing, networking and cooperation

within the urban water industry. It is proud of the collegiate attitude of its members which

has led to industry-wide approaches to national water issues.

WSAA can demonstrate success in the standardisation of industry performance monitoring

and benchmarking, as well as many research outcomes of national significance. The WSAA

Executive retains strong links with policy makers and legislative bodies and their influences,

to monitor emerging issues of importance to the urban water industry. WSAA is regularly

consulted and its advice sought by decision makers when developing strategic directions for

the water industry.

WSAA was formed in 1995 as a non-profit organisation to foster the exchange of information

relating to the provision of urban water services between industry, government and the

community, and to promote sustainable water resource management.

The Association’s main activities focus on four areas:

1. Influencing national and state policies on the provision of urban water services and

sustainable water resource management;

2. Promoting debate on environmentally sustainable development and management of

water resources and the community health requirements of public water supplies;

3. Improving industry performance and establishing benchmarks and industry leading

practices for water service processes; and

4. Fostering the exchange of information on education, training, research, water and

wastewater management and treatment and other matters of common interest.

Copyright

This document is copyrighted. Apart from any use as permitted under the Copyright Act

1968, no part of this document may be reproduced or transmitted in any form or by any

means, electronically or mechanical, for any purpose, without the express written permission

of Water Services Association of Australia Limited.

© Copyright 2016 by WATER SERVICES ASSOCIATION of Australia Limited All rights

reserved.


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CONTENTS

1 EXECUTIVE SUMMARY ............................................................................................................................................. 6

1.1 Recommendation .................................................................................................................................................. 7

2 THE APPLICANT ......................................................................................................................................................... 8

3 THE PRODUCT ........................................................................................................................................................... 8

4 SCOPE OF THE APPRAISAL ................................................................................................................................... 10

5 APPRAISAL CRITERIA ............................................................................................................................................. 10

5.1 Quality Assurance Requirements ........................................................................................................................ 10

5.2 Performance Requirements................................................................................................................................. 10

6 COMPLIANCE WITH APPRAISAL CRITERIA........................................................................................................... 11

6.1 Compliance with Quality Assurance Requirements ............................................................................................. 11

6.2 Compliance with Material Requirements ............................................................................................................. 11

6.2.1 Polyethylene (PE) compounds ...................................................................................................................... 11

6.2.2 Elastomeric seals .......................................................................................................................................... 11

6.2.3 Jointing Lubricant .......................................................................................................................................... 11

6.2.4 Fittings .......................................................................................................................................................... 11

6.3 Compliance with Performance Requirements – Polyethylene (PE) ..................................................................... 12

6.3.1 Tests on polyethylene pipe (PE) ................................................................................................................... 12

6.3.1.1 PE Pipe Thermal Stability – Oxidation Induction Time ........................................................................... 12

6.3.1.2 PE Pipe Stiffness.................................................................................................................................... 12

6.3.1.3 Ring flexibility of PE pipe ........................................................................................................................ 13

6.3.1.4 Hydrostatic pressure test on elastomeric seal joints (DN100 – DN900) ................................................. 13

6.3.1.5 Liquid infiltration test on elastomeric seal joints (DN100 – DN900) ........................................................ 13

6.3.1.6 Contact width and pressure test on elastomeric seal joints (DN100 – DN900) ...................................... 14

6.3.1.7 Hydrostatic pressure test on elastomeric seal joints (DN1050 –DN1500) .............................................. 14

6.3.1.8 Liquid infiltration test on elastomeric seal joints (DN1050 –DN1500) ..................................................... 14

6.3.1.9 Contact width and pressure test on elastomeric seal joints (DN1050 –DN1500) ................................... 14

6.3.1.10 Dimensions – ID Series pipe (PE Pipe) ................................................................................................ 15

6.3.1.11 Wall thickness – ID Series pipe (PE) .................................................................................................... 15

6.3.1.12 Dimensions & ring stiffness of sockets and spigots – ID Series pipe (DN100 – DN900) ...................... 15

7 FITTING INSTRUCTIONS, TRAINING AND INSTALLATION ................................................................................... 16

8 PRODUCT MARKING ............................................................................................................................................... 16

9 PACKAGING AND TRANSPORTATION ................................................................................................................... 16

10 PRODUCT WARRANTY .......................................................................................................................................... 17

11 WATER AGENCY EXPERIENCE WITH THE PRODUCT OR FIELD TESTING REPORT ..................................... 17

12 DISCUSSION ........................................................................................................................................................... 17

13 OUTCOMES OF EXPERT PANEL PRODUCT REVIEW......................................................................................... 18

14 LIFE EXPECTANCY ................................................................................................................................................ 18

15 FUTURE WORKS .................................................................................................................................................... 18

16 DISCLAIMER ........................................................................................................................................................... 18

16.1 Issue of Report .................................................................................................................................................. 18

16.2 Limits on Reliance on Information and Recommendations................................................................................ 19

16.2.1 Disclaimer of liability ................................................................................................................................... 19

16.2.2 Intellectual Property and other rights .......................................................................................................... 19

16.2.3 Need for independent assessment ............................................................................................................. 19

16.3 No Updating ...................................................................................................................................................... 20


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16.4 No Warranty ...................................................................................................................................................... 20

APPENDIX A - QUALITY CERTIFICATIONS ............................................................................................................... 21


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1 EXECUTIVE SUMMARY

Enviropipes Pty Ltd is a wholly owned and operated Australian polyolefin pipe and fittings

manufacturing business, established in 2009 and located in Perth, Western Australia.

Enviropipes manufacture varying classes of polyethylene (PE)) pipes and various fittings to

suit.

The Enviropipes products included in this appraisal are EnviroSewer® and Storm Water

structured wall pipe in sizes ranging from DN100 to DN1500 complying with AS/NZS

5065:2005 (AMDT 1:2010) - Polyethylene and polypropylene pipe for drainage and

sewerage applications. These products are certified by ApprovalMark with ISO Type 5

certification – Certificate Number AMI72302 and WaterMark Certificate of conformance –

Level 2 - Certification Number WM72302. Larger sizes are available however they are

considered outside of the scope of this appraisal.

The nominal outside diameter (DN) is based on Type B Internal Diameters (ID) series. The

structured wall manufacturing process enables Enviropipes to specify both the internal and

external colours according to project specifications.

Fabricated fittings are also manufactured by Enviropipes but appraised separately. (Refer

Clause 6.2.5 below.)

Enviropipes manufacture structured wall pipes in two distinct profiles based on the size in

polyethylene (PE100). The PE range is Class SN8 Pipes from DN100 to DN900 are

manufactured with plain waterway and external consecutive annular hollow ring layer to

create a structured pipe. The pipe profile cross section is shown below. This profile is

manufactured in nominal 6m lengths in sizes DN100, DN150, DN225, DN300, DN375,

DN450, DN525, DN600, DN750, DN900.

Pipes from DN1050 to DN1500 are manufactured with plain waterway and an external hollow

helical ring layer to create a structured pipe. Pipe profile cross section is shown below. This

profile is manufactured in nominal 6m lengths in sizes DN1050, DN1200, DN1500 and

available is stiffness ratings of SN2, SN4 and SN8.

PIPE PROFILE CROSS SECTIONS

The Enviropipes Product Catalogue lists other pipe sizes and fabricated fittings from DN 20

to DN 1500 including Enviroculvert™ pipe and they are not included in this appraisal due to

current lack of product certification. Enviropipes Polyethylene (PE) pressure pipe

(Enviropressure®) is WSAA appraised in PA 1310 Issue 2 dated 2nd November 2015.

The polyethylene material used by Enviropipes is BorSafe HE3490-LS-H is registered on

PIPA POP004 list.

Enviropipes have a Certificate of Registration for compliance with the requirements of

ISO 9001:2008 from ApprovalMark International. ApprovalMark International also provides

Enviropipes with ISO Type 5 Certificate of Conformity for the above appraised products

manufactured in compliance with AS/NZS 5065:2005(AMDT 1:2010).

The EnviroSewer® and Storm Water pipes are designed on the basis of 50 year extrapolated

material test data. For correctly manufactured and installed systems, the actual life cannot

be predicted, but can reasonably be expected to be in excess of 100 years before major

rehabilitation is required. Pipe life expectancy can vary with the quality of installation


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workmanship, system operating conditions, operating environment and other site specific

factors.

1.1 Recommendation

It is recommended that WSAA members and associates, subject to any specific

requirements, conditionally accept/authorise the EnviroSewer® and Storm Water pipe

(“Product”)

a) as listed in Section 4 "Scope of Appraisal” that are relevant for use in non-pressure

sewerage or drainage applications as provided in pipeline design, installation,

acceptance testing and commissioning in accordance with applicable WSAA Codes

and the manufacturer’s requirements where specified.

b) On the presumption that Enviropipes make satisfactory process in addressing the

‘Future Work’ items mentioned in Section

It is recommended that WSAA members and associates, subject to any specific

requirements, conditionally accept/authorise the EnviroSewer® and Storm Water pipe as

listed in Section 4 "Scope of Appraisal” that are relevant to non pressure sewerage or

drainage applications as provided in pipeline design, installation, acceptance testing and

commissioning in accordance with applicable WSAA Codes and the manufacturer’s

requirements where specified.


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2 THE APPLICANT

Enviropipes is a wholly owned and operated Australian pipe manufacturing business,

established in 2009 and located in Perth, Western Australia. The Enviropipes Business has

been developed with industry experienced owners and directors with a vision to become a

leader in polyolefin pipe and fittings manufacture. Enviropipes recently constructed 80,000

square metre purpose built facility, has commissioned various extrusion lines to manufacture

a range of Polypropylene (PP) and Polyethylene (PE) pipe and fittings from 20mm up to

4000mm. For more information see the Enviropipes Product Catalogue on line at

www.enviropipes.com.au

3 THE PRODUCT

EnviroSewer® and Storm Water dual wall corrugated polyethylene pipe is manufactured in

Perth Airport, Perth Western Australian.

EnviroSewer® and Storm Water spigot-socket elastomeric jointed pipe is available in 6 m

lengths in sizes 100 mm, 150, 225, 300, 375, 450, 525, 600, 750 and 900, 1050, 1200 and

1500.

EnviroSewer® and Storm Water are manufactured in accordance with AS/NZS 5065:2005

(AMDT 1:2010) - Polyethylene and polypropylene pipe for drainage and sewerage

applications.

These pipes are manufactured with a co-extrusion process in which multiple layers of

material are extruded simultaneously through two separate extruders that melt and deliver

two layers of material to a single extrusion head (die) forming an internal layer (waterway)

and an external layer (Profile) to create a structured pipe. This process enables Enviropipes

to specify both the internal and external colours according to project specifications

These products are certified by ApprovalMark with ISO Type 5 certification – Certificate

Number AMI72302 and WaterMark Certificate of conformance – Level 2 - Certification

Number WM72302.

The nominal outside diameter (DN) is based on Type B (ID) series.

Fabricated fittings are also manufactured by Enviropipes but appraised separately. (Refer

Clause 6.2.4 below.)

Enviropipes manufacture structured wall pipes in two distinct profiles based on the size in

polyethylene (PE100). The PE range is Class SN8, other classes can be manufactured upon

request.

Pipes from DN100 to DN900 are manufactured to AS/NZS 5065:2005 (AMDT 1:2010)

Clause 1.4.10 (structured wall) by polymer resin travelling through the die to the moulds

forming an internal layer (waterway) and an external consecutive annular hollow ring layer

(Profile) to create a structured pipe. Refer to Figure 1 for pipe profile cross section.

FIGURE 1 DN100-DN900 PIPE PROFILE CROSS SECTION

This profile is manufactured in nominal 6m lengths in sizes DN100, DN150, DN225, DN300,

DN375, DN450, DN525, DN600, DN750 and DN900. Refer to Table 1.

http://www.enviropipes.com.au/


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TABLE 1

POLYETHYLENE ENVIROSEWER®, STORM WATER PIPE SCHEDULE

DN100 to DN900

Nominal Diameter

(DN)

Outside Diameter

(mm)

Internal Diameter

(mm)

Nominal Overall

Length (mm)

Length (Sp/So) Effective Length

(mm)

Stiffness Class (SN)

Jointing Method

100 110 95 6000 6 8 Rubber Ring

150 160 138 6000 6 8 Rubber Ring

225 257 223 6070 5.95 8 Rubber Ring

300 339 294 6060 5.915 8 Rubber Ring

375 425 371 6020 5.84 8 Rubber Ring

450 508 438 6030 5.83 8 Rubber Ring

525 595 514 6030 5.76 8 Rubber Ring

600 672 591 6040 5.75 8 Rubber Ring

750 835 731 6148 5.75 8 Rubber Ring

900 995 869 6000 5.71 8 Rubber Ring

TABLE 2

POLYETHYLENE ENVIROSEWER®, STORM WATER PIPE SCHEDULE

DN1050 to DN1500

Nominal Diameter

(DN)1

Outside Diameter

(mm)

Internal Diameter

(mm)

Nominal Overall

Length (mm)

Length (Sp/So) Effective Length

(mm)

Stiffness Class (SN)

Jointing Method

1050 1216 1050 6160 6000 8 Rubber Ring

1200 1370 1200 6160 6000 8 Rubber Ring

1500 1686 1500 6160 6000 8 Rubber Ring

Note 1 AS/NZS 5065:2005 (AMDT 1:2010) Table 4.6 Type B-ID Series extends up to and including DN1500.

Pipes from DN1050 to DN1500 are manufactured to AS/NZS 5065:2005 (AMDT 1:2010)

Clause 1.4.11 (Ribbed or hollow profile construction) by polymer resin travelling through the

die to the mandrel helically forming an internal layer (waterway) and an external layer (helical

profile) to create a structured pipe. Refer to Figure 2 for a typical pipe profile cross section.

This profile is manufactured in nominal 6m lengths in sizes DN1050, DN1200 and DN1500

FIGURE 2 DN1050-DN2000 PIPE PROFILE CROSS SECTION

The pipe has an inner layer (waterway) and an outer layer (Profile) making them both

structured pipes with a hollow profile conforming to AS/NZS 5065:2005(AMDT 1:2010).Type

B-ID series pipes. These pipes are spigot/socket joined with Ethylene Propylene Diene


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Monomer (EPDM) elastomeric seals that conform to AS1646. For additional sealing

performance in the DN1050 to DN1500 sized pipes Enviropipes use a dual rubber ring joint.

Refer to Figure 3 for sealing configuration.

All pipes from DN100 to DN1500 have demonstrated compliance under test with AS 1462.8,

as referenced in AS/NZS 5065, Section 3.4 Tests on Elastomeric Seal Joints. The

compliance specification states that the assembled joint, with a diametric distortion of 7.5%

must withstand an internal pressure of 80 (+5 -0) kPa for 60 (+5 -0) minutes without leakage.

In addition, an angular deflection complying with Table 1 of AS/NZS 1462.8 was applied to

the assembled test specimen before the application of diametric distortion and internal

pressure.

For all pipe sizes (DN100 to DN1500), Enviropipes has continued the co extrusion process

to add extra thickness and structural strength to the socket. The sealing configuration is

shown in Figure 3.

FIGURE 3 SEALING CONFIGURATION

Polyethylene pipes have a stiffness rating of SN8 or 8000 N/m/m. Both waterway and profile

thickness are identical despite the difference in SN rating as this is achieved solely on the

composition of the material. These pipes are analysed in accordance with AS 1462.22. As

referenced in AS/NZS 5065, the compliance specification as per section 3.2.2 states that the

pipe stiffness shall be not less than pipe stiffness for the relevant pipe class as seen in Table

3.1 of AS/NZS 5065:2005(AMDT 1:2010).

4 SCOPE OF THE APPRAISAL

The scope of the appraisal is covered in Section 3 above and the listings in the ApprovalMark

Product Schedule located in Appendix ‘A’. A specific dimensioned list of available pipe and

fittings is available in the Enviropipes Product Catalogue available at

www.enviropipes.com.au.

5 APPRAISAL CRITERIA

5.1 Quality Assurance Requirements

The WSAA product appraisal network accepts pipeline products for drainage and sewerage

applications manufactured in compliance with AS/NZS 5065:2005 (AMDT 1:2010) and duly

certified by means of an ISO Type 5 product certification scheme undertaken by a JAS-ANZ

accredited Conformity Assessment Body (CAB) or by an international accreditation system

recognized by JAS-ANZ.

The manufacturer is generally expected to have a production management and control

system that has been duly accredited in accordance with AS/NZS ISO 9001 as a prerequisite

to undergoing a product certification audit.

5.2 Performance Requirements

EnviroSewer® and Storm water pipes have been appraised for compliance with

AS/NZS 5065:2005 (AMDT 1:2010) Polyethylene and polypropylene pipe and fittings for

drainage and sewerage applications.

Readers are also referred to the following WSAA “National Codes List”:

WSA 01-2004 Polyethylene Pipeline Code of Australia.



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WSA 02-2014 Gravity Sewerage Code of Australia.

The following Product Specifications are also relevant to this application:

WSA PS-241 - Polyethylene (PE), Ribbed Construction, pipes and fittings for non-pressure applications, Sewerage.

Copy of the above Product Specifications can be found in Appendix B or downloaded from

the WSAA website

6 COMPLIANCE WITH APPRAISAL CRITERIA

6.1 Compliance with Quality Assurance Requirements

The following certificates have been submitted by Enviropipes Pty. Ltd.:-

ApprovalMark International Certificate of Registration No. QMS28623 for the operation of

a Quality Management System in compliance with the requirements of ISO 9001:2008 for

the Enviropipes establishment located at 1220 Abernethy Road, High Wycombe, 6057,

Perth, Australia.

ApprovalMark International Certificate of Conformity (ISO Type 5 License) No. AMI 72302

and ApprovalMark International Product Schedule for License No AMI 72302 issued for

products manufactured in compliance with AS/NZS 5065:2005 Polyethylene and

polypropylene pipe and fittings for drainage and sewerage applications.

ApprovalMark International Certificate of Conformity (ISO Type 5 License) No. AMI 74510

with Schedule issued for EPDM elastomeric seals in sizes DN’s100 to 2000 for compliance

with AS 1646:2007 – Elastomeric seals for waterworks purposes.

Summaries and copies of the above and Certificates are shown in Appendix ‘A’.

6.2 Compliance with Material Requirements

Ref: AS/NZS 5065:2005 Section 2

6.2.1 Polyethylene (PE) compounds

Enviropipes Pty Ltd manufacturers PE pipe using polyethylene compound PE100. Raw

materials used to manufacture PE pipe and fittings contain antioxidants, UV stabilisers and

pigments in accordance with AS/NZS 5065:2005 (AMDT 1:2010). The material referred to

in this appraisal used to manufacture corrugated polyethylene pipe is BorSafe HE3490-LS-

H. This compound is manufactured and supplied by Borealis which is registered on PIPA

POP004 list.

6.2.2 Elastomeric seals

Enviropipes has submitted dimensional drawings showing the seal profile and dimensions

for the single seal used in pipe sizes, DN100 to DN900 and the twin seals used in pipe sizes

DN1050 to DN1500 (see typical drawings at Appendix ‘D’). The elastomer is EPDM and the

profiles are entirely different and individually shaped to fit their pipe profile.

All the above elastomeric seals are manufactured by Thai Duong Joint Stock Company in

Vietnam and are ISO Type 5 Product Certified by ApprovalMark Certificate No. AMI 74510

for compliance with AS 1646:2007 Elastomeric seals for waterworks purposes. The

Schedule lists sizes DN100 to DN2000 (see Appendix ‘A’).

6.2.3 Jointing Lubricant

Enviropipes recommend and supply Thomas Grozier BK Standard Lubricant which has

WaterMark Level 1 certification for compliance with ATS 5200.014.

6.2.4 Fittings

Enviropipes manufacture fabricated fittings for their EnviroSewer™, Storm Water,

EnviroCulvert™ and EnviroGravity™ pipe. These fittings are fabricated from pipe and factory


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welded to order with socket / spigot ends to suit. These fittings are not included in this

appraisal and will be appraised separately.

6.3 Compliance with Performance Requirements – Polyethylene (PE)

Ref: AS/NZS 5065:2005 (AMDT 1:2010) specifies in Section 3 - Performance Requirements, Tests on pipes

and Section 4 Dimensions.

6.3.1 Tests on polyethylene pipe (PE)

Enviropipes has submitted a ‘Document’ (see Table 6.1 & Appendix ‘D’) listing the tests

described and specified in Sections 3 and 4 of AS/NZS 5065:2005 (AMDT 1:2010) as

witnessed by ApprovalMark International. ApprovalMark is recognised by the National

Association of Testing Authorities, Australia (NATA) as an ‘Assessor’ for mechanical testing

of products.

Enviropipes has submitted individually signed in house test laboratory reports to

demonstrate compliance plus a NATA testing authority report. Copies of these reports will

be held on file by WSAA and unless advised otherwise by Enviropipes the reports will be

regarded as “Commercial in Confidence” and not to be released.

6.3.1.1 PE Pipe Thermal Stability – Oxidation Induction Time

Ref: AS/NZS 5065:2005 Clause 3.1 –Thermal stability

Enviropipes has submitted 14 individual ‘in-house’ test reports titled “Thermal Stability/

Oxidation Induction Time” all dated during 2011/12 for pipe sizes from DN225 to DN 1500

Class SN8 PE100, HE3490LS. These reports are typical ‘production’ test results.

The reports state:

“A polyethylene sample was prepared and analysed in accordance with Standards

ISO 11357-6 and ISO 11357-1, to determine the Oxidation Induction Time. AS/NZS

5065 states that the oxidation induction time shall be equal or greater than 20minutes

for injection moulded pipes and fittings, when tested in accordance with ISO11357-6,

at a test temperature of 200°C. Enviropipes uses and oxidation induction time (OIT)

test temperature of 210°C. We have correlation data that shows a factor of about 2

applies to OITs at 210°C to achieve an oxidation equivalent OIT at 200°C. Therefore,

OIT results must be >10 minutes at 210°C for equivalent compliance.

A Differential Scanning Calorimeter (DSC), calibrated with Indium and Lead, was

used to perform the testing. The onset method was used to calculate the OIT. Oxygen

and Nitrogen gas, both supplying 50mL/min into the specimen holder assembly.

Aluminium pans were used to hold the sample. A copy of the plot generated by the

DSC software is included below.

For test procedure see EP010 - OIT Testing Procedure.”

AS/NZS 5065:2005 (AMDT 1:2010) Clause 3.1 specifies compliance to ISO 11357-6 or

equivalent. All test reports stated the results as a ‘pass’.

6.3.1.2 PE Pipe Stiffness

Ref: AS/NZS 5065:2005 Clause 3.2.2 – Stiffness.

Enviropipes has submitted 10 individual ‘in-house’ test reports titled “Pipe Stiffness” all dated

during 2011/12 for pipe sizes from DN225 to DN 1200 Class SN8 PE100, HE3490LS. These

reports are typical ‘production’ test results.

The reports state:

“A sample was prepared and analysed in accordance with AS 1462.22. As

referenced in AS/NZS 5065, the compliance specification as per section 3.2.2

states that the pipe stiffness shall be not less than pipe stiffness for the

relevant pipe class. See Table 3.1 of AS/NZS 5065.


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For test procedure see EP024 - Pipe Stiffness - Testing Procedure.”

AS/NZS 5065:2005 (AMDT 1:2010) Clause 3.2.2 specifies compliance to AS/NZS 1462.22

Table 3.1. All test reports stated the results as a ‘pass’.

6.3.1.3 Ring flexibility of PE pipe

Ref: AS/NZS 5065:2005 Clause 3.2.3 – Ring flexibility.

AS/NZS 5065:2005 (AMDT 1:2010) Clause 3.2.3 specifies compliance to AS/NZS 1462.23.

Enviropipes has submitted 11 individual ‘in-house’ test reports titled “Ring Flexibility” all

dated during 2011/12 for pipe sizes from DN225 to DN 1500 Class SN8 PE100, HE3490LS.

These reports are typical ‘production’ test results.

The reports state:

“A sample was prepared and analysed in accordance with AS 1462.23. As referenced in AS/NZS 5065 section 3.2.3, the compliance specification states that the test specimen of pipe shall not show any of the following defects; cracking, wall delamination, rupture, or permanent buckling.

For test procedure see EP054 - Ring Flexibility - Testing Procedure.”

All test reports stated the results as a ‘pass’.

6.3.1.4 Hydrostatic pressure test on elastomeric seal joints (DN100 – DN900)

Ref: AS/NZS 5065:2005 (AMDT 1:2010) Clause 3.4.1 – Hydrostatic pressure test

Enviropipes has submitted nine individual ‘in-house’ test reports titled “Seal Leak Tightness”

all dated during 2011/12 for pipe sizes from DN225 to DN2000 Class SN8 PE100,

HE3490LS.

These reports are typical ‘production’ test results stating the following:

“A sample was prepared and analysed in accordance with AS 1462.8. As referenced

in AS/NZS 5065:2005 section 3.4, the compliance specification states that the

assembled joint, with a diametric distortion of 7.5% must withstand an internal

pressure of 80 (+5 -0) kPa for 60 (+5 -0) minutes without leakage. In addition, an

angular deflection complying with Table 1 of AS/NZS 1462.8 was applied to the

assembled test specimen before the application of diametric distortion and internal

pressure. This simulates a worst case scenario.

For test procedure see EP036 - Seal Leak Tightness - Testing Procedure.”

The test reports actually demonstrate a ‘Hydrostatic pressure test’ in accordance with AS

1462.8:2008 which provides for testing using positive or negative pressure.

AS/NZS 5065:2005 (AMDT 1:2010) Clause 3.4.1 specifies a diametral distortion of 7.5% but

no angular deflection.

6.3.1.5 Liquid infiltration test on elastomeric seal joints (DN100 – DN900)

Ref: AS/NZS 5065:2005 Clause 3.4.2 – Liquid infiltration test.

Enviropipes has submitted a 7 page test report from NATA accredited APTS Laboratory titled

“Test Report for Hydrostatic/Pneumatic Pressure Testing” dated September 2012 for pipe

size DN450 Class SN8 PE100 with Gulf Rubber EPDM seal.

The test report nominates AS 5065 and AS 1462.8:2008 and concludes “Vacuum pressure

was held for 60 minutes. There were no ruptures or visible distortions on piping or fittings.

The results of this test meet the requirements of AS 1462.8:2008 Section 7.1.2 – Vacuum

method”.

Note: AS/NZS 5065:2005 Clause 3.4.2 does not specify angular deflection as a requirement.


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6.3.1.6 Contact width and pressure test on elastomeric seal joints (DN100 – DN900)

Ref: AS/NZS 5065:2005 Clause 3.4.3 – Contact width and pressure.

Enviropipes has submitted an individual ‘in-house’ test report titled “Seal Contact W idth and

Pressure” dated September 2012 for pipe size DN450 Class SN8 PE100, HE3490LS and

EPDM Gulf Rubber seal compliant with AS 1646, AS681.1 & 2.

The reports state:


in section 7, the assembly was brought under a pressure of 0.05MPa and adjusted

so that contact with the seal and hole was initiated. Pressure was increased slowly

until leakage occurred. The travel distance was noted, pressure reduced and

assembly closed slightly, while noting the travel distance. The pressure cycle was

repeated until a continuous contact width in excess of 4mm was achieved.

For test procedure see EP050 - Seal Contact Width and Pressure - Testing

Procedure.”

The test report demonstrated a constant pressure of 0.47MPa over a distance of 6.5mm

exceeding the requirements of AS/NZS 1462.13

6.3.1.7 Hydrostatic pressure test on elastomeric seal joints (DN1050 –DN1500)

Ref: AS/NZS 5065:2005 Clause 3.4.1 – Hydrostatic pressure test

Enviropipes has submitted three individual ‘in-house’ test reports titled “Seal Leak Tightness”

all dated during 2011/12 for pipe sizes DN1050, DN 1200 and DN 1500 Class SN8 PE100,

HE3490LS. These tests are for the twin seals used with PE pipe.

These reports are typical ‘production’ test results.

The reports state:


in AS/NZS 5065 section 3.4, the compliance specification states that the assembled

joint, with a diametric distortion of 7.5% must withstand an internal pressure of 80 (+5

-0) kPa for 60 (+5 -0) minutes without leakage. In addition, an angular deflection

complying with Table 1 of AS/NZS 1462.8 was applied to the assembled test

specimen before the application of diametric distortion and internal pressure. This

simulates a worst case scenario.

For test procedure see EP036 - Seal Leak Tightness - Testing Procedure.”

6.3.1.8 Liquid infiltration test on elastomeric seal joints (DN1050 –DN1500)

Ref: AS/NZS 5065:2005 Clause 3.4.2 – Liquid infiltration test.

Enviropipes has submitted two individual ‘in-house’ test reports titled “Seal Leak Tightness”

all dated 11/6/2016 and 12/8/2014 and for pipe sizes DN1050, and DN 1500 Class SN8

PE100, HE3490LS. These tests are for the EDPM twin seals used with PE pipe.

The test report nominates AS 5065 and AS 1462.8:2008 and concludes “Vacuum pressure

was held for 60 minutes. The results of this test meet the requirements of AS 1462.8:2008

Section 7.1.2 – Vacuum method”.

6.3.1.9 Contact width and pressure test on elastomeric seal joints (DN1050 –DN1500)

Ref: AS/NZS 5065:2005 Clause 3.4.3 – Contact width and pressure.

Enviropipes has submitted an individual ‘in-house’ test report titled “Seal Contact Width and

Pressure” dated 16 September 2016, for pipe size DN1050 Class SN8 PE100 and EPDM

Gulf Rubber seals compliant with AS 1646:2007.

The report states:


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in section 7, the assembly was brought under a pressure of 0.05MPa and adjusted

so that contact with the seal and hole was initiated. Pressure was increased slowly

until leakage occurred. The travel distance was noted, pressure reduced and

assembly closed slightly, while noting the travel distance. The pressure cycle was

repeated until a continuous contact width in excess of 4mm was achieved.

Procedure EP050 - Seal Contact Width and Pressure - Testing Procedure.”

The test report displays a Table of figures demonstrating the contact width distance in 7

steps from 0.0mm to 6.0mm and pressure at leakage (MPa) at each step starting at 0.48

MPa and declining to 0.47 MPa at the 6.0mm distance. The “Pressure (MPa) vs Distance” is

also displayed graphically and a second page displays photos with gauges and

measurements.

Note: there are two seals in the joint assembly and this test is conducted on a single seal.

6.3.1.10 Dimensions – ID Series pipe (PE Pipe)

Ref: AS/NZS 5065:2005 Clause 4.1.4.2 – Dimensions - ID series, Table 4.6 & figure 4.3.

Enviropipes has submitted two shift reports titled “Pipe Cross Section – Dimensional QC

Template” dated October 2012. The material is listed as PE100, HE3490LS and pipe sizes

DN1050 and DN1500. The reports provide hand written dimensions at 12 o’clock, 3 o’clock,

6 o’clock and 9 o’clock. Pipe ID measured North/South and West/East with the target

dimensional requirements plus other in-house notes on SN exceeding specification. Both

reports stated “No corrective action required”.

No other report has been submitted except the ApprovalMark table of witnessed clauses

shown in Table 3 and Appendix ‘D’.

6.3.1.11 Wall thickness – ID Series pipe (PE)

Ref: AS/NZS 5065:2005 Clause 4.1.4.3 – Wall thickness - ID series, Table 4.6.

See 6.3.1 above and Table 3 below.

6.3.1.12 Dimensions & ring stiffness of sockets and spigots – ID Series pipe (DN100 –

DN900)

Ref: AS/NZS 5065:2005 Clause 4.1.4.4 – Dimensions of sockets and spigots - ID series, Table 4.7, Figures

4.4 & 4.5 and for ring stiffness ISO 9969.

Table 3 summarises the pipe testing requirements as witnessed by ApprovalMark. Refer to

Clause 6.3.1 and Table 3 below.

TABLE 3: AS/NZS 5065:2005 TYPE TESTING REQUIREMENTS

Standard Clause Requirement Test Method Compliance

Clause 3.1 Thermal stability of pipes and fittings ISO/TR 10837 PASS

Clause 3.2.2 Stiffness of pipes AS/NZS 1462.22 PASS

Clause 3.2.3 Ring flexibility of pipes AS/NZS 1462.23 PASS

Clause 3.4.1 Hydrostatic pressure test AS/NZS 1462.10 (8) PASS

Clause 3.4.2 Liquid infiltration t es t AS/NZS 1462.8 PASS

Clause 3.4.3 Contact width and pressure AS/NZS 1462.13 PASS

Clause: 4.1.4.2 Dimensions of pipe, Table 4.6 PASS

Clause: 4.1.4.3 Wall thickness of pipe Table 4.6 PASS

Clause: 4.1.4.4 Dimensions of sockets & spigots and ring

stiffness Tables 4.7, 4.8 & ISO 9969 PASS


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7 FITTING INSTRUCTIONS, TRAINING AND INSTALLATION

Enviropipes Product Catalogue provides a one page, 5 step descriptions with photos for

rubber ring soc/spig jointing EnviroSewer pipe and Storm Water pipe. (See Appendix ‘F’)

The EPDM seal is inserted between last corrugations at the spigot, jointing lubricant is

applied to the socket and the joint made in the normal manner.

A fabricated soc/soc coupling for jointing cut pipe can be manufactured by Enviropipes to

order along with other fittings. Stainless steel repair couplings can be manufactured to order

by Enviropipes. A cut pipe jointing or pipe repair process has been provided by Enviropipes.

Refer to Appendix ‘F’ or Enviropipes for more information. These fittings are not included in

this appraisal.

DN1050 to DN1500 pipe is manufactured to suit the individual project and Enviropipes

Product Catalogue provides a diagram and video link of the assembly with the twin

elastomeric ring seal for soc/spig jointing pipe.

DN1050 to DN1500 pipes have plain inner surface and hollow outside helical ribbed external

surface. These pipes are manufactured with a formed integrated socket and plain spigot

specifically to project specifications. The spigot end is designed to accommodate the twin

rubber seals, which when assembled forms a water tight joint from the interface compression

of the rubber seal between the spigot and socket ends. These pipes are supplied with a set

of EPDM rubber seals and lubricant. These pipes are not suited to random cutting to length

in the field without a pre-ordered fabricated coupling. A pipe repair process for DN1050 to

DN1500 pipes has been provided by Enviropipes. Refer to Appendix ‘F’ or Enviropipes for

more information.

As a minimum compliance level, Enviropipes recommends that contractors install plastic

pipelines according to, but are not limited to, the following standards and guidelines;

AS/NZS 2033 - Installation of polyethylene pipe systems,

AS/NZS 2566 Part 2 - Buried flexible pipelines – Installation,

PIPA Guideline POP005 - Packaging, Handling and Storage of Polyethylene Pipes and Fittings,

PIPA Guideline POP204 - Expected Service Life of Elastomeric Pipe Seals, and

PIPA Guideline POP201 - Resistance of Plastics Pipes and Fittings to Water and Wastewater Chemicals.

8 PRODUCT MARKING

Enviropipes provides the following marking:

Manufacturer’s name – ENVIROPIPES PTY LTD.

Type – “Corrugated Pipe”

Nominal size (DN) and Class (SN) – DN750 SN8

The letters PP or PE as appropriate.

Date of manufacture (year/month/day)

StandardsMark / WaterMark as appropriate

Place of manufacture – Perth

Time of manufacture – 24 hour clock time – e.g. 22:43

9 PACKAGING AND TRANSPORTATION

Enviropipes has submitted the following:

“Packaging and transport of pipe to site will vary depending on size, quantity, length, weight

and client requirements. Enviropipes follow safe work practices outlined in:

PIPA Guidelines (POP005 – Packaging, Handling and Storage of Polyethylene Pipe and Fittings),


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AS/NZS 5065:2005 – Polyethylene and Polypropylene Pipes and Fittings for Drainage and Sewerage Applications

AS/NZS 2033:2008 – Installation of Polyethylene pipe (Section 3)

AS/NZS 2566.2 – Buried flexible pipelines – Installation

AS/NZS 3500.2 and 3 – Plumbing and drainage Part 2 – Sanitary plumbing and drainage and Part 3 – Stormwater drainage

WSA 02 – Sewerage Code of Australia

National Transport standards in the packaging and shipping of product.

Incoterms 2010 International Guide to Commercial Terms

Enviropipes packing and shipping guidelines

Polyethylene and polypropylene pipe and fittings shall be transported, handled and stored

with care at all times to avoid physical damage that could adversely affect performance.

Enviropipes have the following packaging and delivery procedures for transporting/loading

pipes of various sizes from their High Wycombe, WA manufacturing site:

“Generally, corrugated pipe can be bundled and strapped then loaded or stacked (dependent

on size) onto the freight forwarder trailer and tied down with holding straps/gates. Timber

gluts are generally used in between layers. It is the responsibility of the freight forwarding

driver to ensure the load has been safely secured prior to departure to prevent damage or

injury (i.e. bolsters, gates, straps). Enviropipes project team will also work in conjunction

with the client to discuss unloading methods at delivery point (ie pre-slung, stringing out

along pipe route, containerisation, etc) to determine the best and safest way to package and

transport product with a view to accommodate site facilities and minimise damage during

transport and handling.

For purchase orders which include delivery to site by the manufacturer we request clients to

examine loads upon arrival and prior to unloading ensure there has been no damage during

transportation caused by movement and abrasion or serious distortion caused by excessive

tightening of holding straps and there are no quantity discrepancies. Damage or quantity

discrepancies should be reported to Enviropipes without delay so corrective action can be

discussed and implemented.”

10 PRODUCT WARRANTY

The products are covered by the normal commercial and legal requirements of the

Competition and Consumer Act 2010 (Cth), which covers manufacture to the relevant

standard, and details of Enviropipes product warranty is included in their terms and

conditions of sale.

11 WATER AGENCY EXPERIENCE WITH THE PRODUCT OR FIELD TESTING

REPORT

Enviropipes has submitted:

Case Study (AS/NZS 5065) – Banjup Stormwater Drainage.

City of Gosnells – Testimonial for Environpipes Envirostorm® pipe.

These documents can be found at Appendix ‘G’

12 DISCUSSION

DN100 to DN900 size pipes are manufactured for jointing with a specific socket and the

corrugated pipe end as the spigot.

DN1050 to DN1500 size pipes are manufactured for spig/soc jointing with a specific formed

socket and a plain formed spigot with two grooves for the twin seals at the ends of each

pipe.

Pipeline design will need to include cut pipes to a specific length for factory manufacture or

a pre-ordered fabricated coupling. Other fittings incorporated in the pipeline design, such as


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junctions and bends for change of direction will need to be pre-designed and fabricated by

Enviropipes to order.

Enviropipes provide information on field jointing to fixtures such as concrete access

chambers and other structures.

13 OUTCOMES OF EXPERT PANEL PRODUCT REVIEW

There were no unresolved issued at the end of the Expert Panel product review process.

14 LIFE EXPECTANCY

Enviropipes has submitted a 2 page summary report titled “HDPE CORRUGATED PIPE LIFE

EXPECTANCY” which is based on technical data sourced from PIPA, PA 100 Association,

Plastics Pipe Institute and SAI Global. The report is summarised by Enviropipes stating:

Enviropipes are confident that the results demonstrate that HDPE corrugated pipe, when

designed, handled, manufactured, installed and maintained correctly will show a long service

life of between 50 – 100 years. This report is shown in full in Appendix ‘D’

Enviropipes range of corrugated wall Polyethylene and Polypropylene pipes are designed

on the basis of 50 year extrapolated material test data. For correctly manufactured and

installed systems, the actual life cannot be predicted, but can reasonably be expected to be

in excess of 100 years before major rehabilitation is required. Pipe life expectancy can vary

with the quality of installation workmanship, system operating conditions, operating

environment and other site specific factors.

15 FUTURE WORKS

There are no outstanding future work items at the end of the Expert panel review process.

16 DISCLAIMER

This Product Appraisal Report (Report) is issued by the Water Services Association of

Australia Limited on the understanding that:

This Report applies to the product(s) as submitted. Any changes to the product(s) either

minor or major shall void this Report.

To maintain the recommendations of this Report any such changes shall be detailed and

notified to the Product Appraisal Manager for consideration and review of the Report and

appropriate action. Appraisals and their recommendations will be the subject of continuous

review dependent upon the satisfactory performance of products.

WSAA reserves the right to undertake random audits of product manufacture and installation.

Where products fail to maintain appraised performance requirements the appraisal and its

recommendations may be modified and reissued. Appraisal reports will be reviewed and

reissued at regular intervals not exceeding five (5) years.

The following information explains a number of very important limits on your ability to rely on

the information in this Report. Please read it carefully and take it into account when

considering the contents of this Report.

Any enquiries regarding this report should be directed to the Program Manager, Carl

Radford, Phone: 03 8605 7601 email [email protected].

16.1 Issue of Report

This Report has been published and/or prepared by the Water Services Association of

Australia Limited and nominated Project Manager and peer group of technical specialists

(the Publishers).

The Report has been prepared for use within Australia only by technical specialists that have

expertise in the function of products such as those appraised in the Report (the Recipients).

mailto:[email protected]


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By accepting this Report, the Recipient acknowledges and represents to the Publisher(s)

and each person involved in the preparation of the Report that the Recipient has understood

and accepted the terms of this Disclaimer.

16.2 Limits on Reliance on Information and Recommendations

16.2.1 Disclaimer of liability

Neither the Publisher(s) nor any person involved in the preparation of the Report accept(s)

any liability for any loss or damage suffered by any person however caused (including

negligence or the omission by any person to do anything) relating in any way to the Report

or the product appraisal criteria underlying it. This includes (without limitation) any liability

for any recommendation or information in the Report or any errors or omissions.

16.2.2 Intellectual Property and other rights

The Water Services Association of Australia Limited does not undertake any assessment of

whether the importation, manufacture, sale or use of the Product the subject of this Report

infringes the intellectual property rights or proprietary rights of any person. Recipients of the

report should undertake their own assessment of whether (as relevant) the importation,

manufacture, sale or use of the relevant Products infringe the intellectual property rights or

other proprietary rights of any person. If the Product infringes intellectual property rights or

other proprietary rights there is potential for the supply of the Products to be interrupted.

From time to time the Water Services Association of Australia Limited and the other

Publishers may receive notice of allegations that the importation, manufacture, sale or use

of the Product infringes intellectual property rights or other proprietary rights. The Water

Services Association of Australia Limited's policy is to not refer to such allegations in its

reports or take any other steps to put Recipients on notice of such allegations, unless and

until it is aware that the allegations have been admitted or proved in Court. As such,

Recipients acknowledge, agree and accept that the Water Services Association of Australia

Limited may have information in its possession about intellectual property rights infringement

allegations or other infringement allegations in relation to the Product which are not referred

to or disclosed in this Report and which are not otherwise communicated to Recipients.

16.2.3 Need for independent assessment

The information and any recommendation contained (expressly or by implication) in this

Report are provided in good faith (and subject to the limitations noted in this Report).

However, you should treat the information as indicative only. You should not rely on that

information or any such recommendation except to the extent that you reach an agreement

to the contrary with the Publisher(s).

This Report does not contain all information that a person might require for the purposes of

assessing any product discussed or appraised within it (Product). The product appraisal

criteria used in preparing this Report may not address all relevant aspects of the Product.

Recipients should seek independent evidence of any matter which is material to their

decisions in connection with an assessment of the Product and consult their own advisers

for any technical information required. Any decision to use the Product should take into

account the reliability of that independent evidence obtained by the Recipient regarding the

Product.

Recipients should also independently verify and assess the appropriateness of any

recommendation in the Report, especially given that any recommendation will not take into

account a Recipient’s particular needs or circumstances.

WSAA has not evaluated the extent of the product liability and professional indemnify

insurance that the provider of the product maintains. Recipients should ensure that they

evaluate the allocation of liability for product defects and any professional advice obtained


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in relation to the product or its specification including the requirements for product liability

and professional indemnity insurance.

16.3 No Updating

Neither the Publisher(s) nor any person involved in the preparation of this Report [has] [have]

any obligation to notify you of any change in the information contained in this Report or of

any new information concerning the Publisher(s) or the Product or any other matter.

16.4 No Warranty

The Publisher(s) do[es] not, in any way, warrant that steps have been taken to verify or audit

the accuracy or completeness of the information in this Report, or the accuracy,

completeness or reasonableness of any recommendation in this Report.


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APPENDIX A - QUALITY CERTIFICATIONS

TABLE A1 ENVIROPIPES – MANAGEMENT SYSTEMS

Manufacturing Site: 1220 Abernethy Road, High Wycombe 6057, Perth, Australia

Quality Systems Standard ISO 9001:2008

Certification licence no. QMS28623

Certifying agency ApprovalMark International

First date of certification 16 September 2012

Current date of certification 16 September 2012

Expiry date of certification 16 September 2017

TABLE A2 ENVIROPIPES – PRODUCT CERTIFICATION – ISO TYPE 5

Manufacturing Site: 1220 Abernethy Road, High Wycombe 6057, Perth, Australia

Quality Systems Standard AS/NZS 5065:2008

Certification licence no. AMI 72302


First date of certification 5 October 2012

Current date of certification 5 October 2012

Expiry date of certification 5 October 2017

TABLE A3 THAI DUONG JOINT STOCK COMPANY – PRODUCT CERTIFICATION – ISO

TYPE 5

Manufacturing Address: Lot A 6B-CN, My Phuoc 3 Industrial Park, Ben Cat District, Binh Duong Province, Vietnam

Quality Systems Standard AS 1646:2007

Certification licence no. AMI 74510


First date of certification 10 February 2013

Current date of certification 10 February 2013

Expiry date of certification 10 February 2018


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APPENDIX B - WSA PRODUCT SPECIFICATION


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<Insert WSA PS – 241 here (one page)>


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APPENDIX C – SUPPLIER CONTACTS AND PRODUCT MANUAL LINKS

Enviropipes Pty Ltd

1220 Abernethy Road

High Wycombe

6057

Perth, Western Australia

Postal address: PO Box 2454,

High Wycombe, 6057,

Perth, Western Australia.

Phone: (08) 9352 8444

Fax: (08) 9352 8400

Email: [email protected]

Website: www.enviropipes.com.au

Product Manual Links

Stormwater Pipes http://www.enviropipes.com.au/index.php/storm-water-pipes/overview

EnviroSewer® Pipes http://www.enviropipes.com.au/index.php/envirosewer-pipes/overview

EnviroCulvert® Pipes http://www.enviropipes.com.au/index.php/enviroculvert/overview

EnviroGravity® Pipes http://www.enviropipes.com.au/index.php/envirogravity-pipes/overview

mailto:[email protected]


http://www.enviropipes.com.au/index.php/storm-water-pipes/overview

http://www.enviropipes.com.au/index.php/envirosewer-pipes/overview

http://www.enviropipes.com.au/index.php/enviroculvert/overview

http://www.enviropipes.com.au/index.php/envirogravity-pipes/overview


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APPENDIX D - TEST RESULTS AND LIFE EXPECTANCY


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APPENDIX E –TYPICAL PROFILE OF EPDM ELESTOMERIC SEAL ELASTOMERIC SEAL

DN 150 – DN 900


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APPENDIX F – INSTALLATION AND MAINTENANCE INSTRUCTIONS


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APPENDIX G – CASE STUDY & TESTIMONIAL


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Melbourne Office Level 8, Suite 8.02 401 Docklands Drive Docklands VIC 3008 Phone: (03) 8605 7666 Fax: (03) 8605 7612 Sydney Office Level 11, 39 Martin Place Sydney NSW 2000 GPO Box 915 Sydney NSW 2001 Phone: (02) 9221 5966

www.wsaa.asn.au

http://www.wsaa.asn.au/

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