FprCEN/TR 1451-2

Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure - Polypropylene (PP) - Part 2: Guidance for the assessment of conformity

This Technical Report gives guidance for the assessment of conformity of materials, products and assemblies in accordance with the applicable part(s) of EN 1451 intended to be included in the manufacturer’s quality plan as part of the quality management system and for the establishment of third-party certification procedures.
NOTE 1   It is recommended that the quality management system conforms to or is no less stringent than the relevant requirements to EN ISO 9001 [1].
NOTE 2   If third-party certification is involved, it is recommended that the certification body is accredited to EN 45011 [2], EN 45012 [3] or EN ISO/IEC 17021 [4], as applicable.
In conjunction with EN 1451-1 this document is applicable to piping systems made of polypropylene (PP) intended to be used for:
-   inside buildings (marked with "B");
-   for both inside buildings and buried in ground within the building structure (marked with "BD").

Kunststoff-Rohrleitungssysteme zum Ableiten von Abwasser (niedriger und hoher Temperatur) innerhalb der Gebäudestruktur - Polypropylen (PP) - Teil 2: Empfehlungen für die Beurteilung der Konformität

Dieser Technische Bericht enthält Empfehlungen für die Beurteilung der Konformität von Werkstoffen, Erzeugnissen
und Bauteilkombinationen entsprechend des/der zutreffenden Teile(s) von EN 1451, die als Teil des
Qualitätsmanagementsystems im Qualitätssicherungsplan des Herstellers und für die Einführung von Verfahren
der Drittstellenzertifizierung vorgesehen sind.
ANMERKUNG 1 Es wird empfohlen, dass das Qualitätsmanagementsystem EN ISO 9001 [1] oder mindestens ebenso
strengen Anforderungen entspricht.
ANMERKUNG 2 Bei Drittstellenzertifizierung wird empfohlen, dass die Zertifizierungsstelle in Abhängigkeit von der
Anwendung entsprechend EN 45011 [2], EN 45012 [3] oder EN ISO/IEC 17021 [4] zugelassen ist.
Dieses Dokument gilt in Zusammenhang mit EN 1451-1 für Rohrleitungssysteme aus Polypropylen (PP) für
folgende vorgesehene Verwendungszwecke:
⎯ innerhalb von Gebäuden (gekennzeichnet mit „B“);
⎯ sowohl innerhalb von Gebäuden als auch erdverlegt innerhalb der Gebäudestruktur (gekennzeichnet mit
„BD“).

Systèmes de canalisations en plastique pour l'évacuation des eaux-vannes et des eaux usées (à basse et à haute température) à l'intérieur de la structure des bâtiments - Polypropylène (PP) - Partie 2: Guide pour l'évaluation de la conformité

Le présent Rapport Technique donne un guide d'évaluation de la conformité des matières, des produits et des montages conformes à la partie (aux parties) applicable(s) de l'EN 1451, destiné à être inclus dans le plan qualité du fabricant dans le cadre du système de management de la qualité ; il servira également à établir des procédures de certification par tierce partie.
NOTE 1   Il est recommandé que le système de management de la qualité soit conforme aux exigences pertinentes de la norme EN ISO 9001 [1], ou soit au moins aussi contraignant.
NOTE 2   Si une certification par tierce partie est impliquée, il est recommandé que l'organisme de certification soit accrédité au sens de l'EN 45011 [2], de l'EN 45012 [3] ou de l'EN ISO/CEI 17021 [4], selon le cas.
Conjointement à l'EN 1451-1, le présent document est applicable aux systèmes de canalisations en polypropylène (PP) destinés à être utilisés :
-   à l'intérieur des bâtiments (marqués « B ») ;
-   à l'intérieur des bâtiments et enterrés à l'intérieur de la structure du bâtiment (marqués « BD »).

Cevni sistemi iz polimernih materialov za nizko- in visokotemperaturne odvodne sisteme v zgradbah - Polipropilen (PP) - 2. del: Navodilo za ugotavljanje skladnosti

General Information

• Status: Not Published
• Publication Date: 03-Oct-2010
• ICS: 23.040.20 - Plastics pipes
• ICS: 91.140.80 - Drainage systems
• Technical Committee: CEN/TC 155 - Plastics piping systems and ducting systems
• Drafting Committee: CEN/TC 155/WG 10 - Systems for non-pressure drainage and sewerage - PE (solid wall)
• Current Stage: 5098 - Decision to abandon - Formal Approval
• Start Date: 02-Jul-2010
• Completion Date: 02-Jul-2010
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Ref Project: kSIST-TP FprCEN/TR 1451-2:2010 - Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure - Polypropylene (PP) - Part 2: Guidance for the assessment of conformity

Relations

• Revises: ENV 1451-2:2001 - Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure - Polypropylene (PP) - Part 2: Guidance for the assessment of conformity
• Effective Date: 19-Jan-2023

Overview

FprCEN/TR 1451-2 (CEN) is a Technical Report providing guidance for the assessment of conformity of polypropylene (PP) piping systems used for soil and waste discharge within building structures. It is intended to be used alongside EN 1451‑1 (specifications for pipes, fittings and the system) and covers how manufacturers and third‑party bodies should organize testing, sampling and quality plans for products marked B (inside buildings) and BD (inside buildings and buried within the building structure).

Key topics and requirements

• Purpose: Guidance for inclusion of conformity assessment procedures into the manufacturer’s quality plan and for establishing third‑party certification processes.
• Quality management: Recommends a system conforming to or as stringent as EN ISO 9001.
• Accreditation: If third‑party certification is used, recommends certification bodies be accredited to EN 45011, EN 45012 or EN ISO/IEC 17021; testing laboratories preferably to EN ISO/IEC 17025; inspection bodies to EN ISO/IEC 17020.
• Material definition: Covers PP compound/formulation (PP base polymer with defined additives and dosages).
• Grouping and sampling:
  • Size groups for pipes: three groups - d < 75 mm; 75 ≤ d < 200 mm; 200 ≤ d ≤ 315 mm. One nominal diameter is selected per group for testing.
  • Fitting groups: three categories - bends, branches, other fittings; one fitting selected per group for testing.
• Test types defined and their roles:
  • Type testing (TT) - verify design/material/process meets EN 1451‑1; required after changes or range extensions.
  • Batch release tests (BRTs) - tests performed by manufacturer before releasing a batch.
  • Process verification tests (PVTs) - periodic checks that production remains capable of meeting type test results.
  • Audit tests (ATs) - independent tests by laboratories for inspection/certification bodies to confirm ongoing conformity.
  • Indirect tests (ITs) and witness testing (WT) are also addressed.
• Example characteristics cited for testing: melt flow rate (MFR), thermal stability (OIT), appearance, colour, dimensions and impact resistance (as specified in EN 1451‑1 and annexed test tables).

Applications and users

Who uses this report:

• Manufacturers of PP pipes, fittings and assemblies - to build compliant quality plans, sampling schemes and internal testing regimes.
• Testing laboratories and inspection bodies - to structure TT, BRT, PVT and AT programs and to define sampling and frequency.
• Certification bodies - to develop third‑party certification procedures consistent with CEN guidance.
• Specifiers, consultants and authorities - to interpret conformity evidence and quality controls applied to PP soil and waste piping systems.

Practical value:

• Standardizes conformity assessment across product ranges and production sites.
• Helps ensure material traceability, repeatable testing and documented process control.
• Supports the development of national third‑party certification schemes for EN 1451‑1 products.

Related standards

• EN 1451‑1:1998 - Part 1: Specifications for pipes, fittings and the system
• EN ISO 9001 - Quality management systems
• EN ISO/IEC 17025 - Testing laboratory accreditation
• EN ISO/IEC 17020 - Inspection body accreditation
• EN 45011 / EN 45012 - Certification/accreditation references

Keywords: FprCEN/TR 1451-2, EN 1451-2, polypropylene piping, soil and waste discharge, assessment of conformity, type testing, batch release, process verification, audit testing, quality plan.

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2010
Cevni sistemi iz polimernih materialov za nizko- in visokotemperaturne odvodne
sisteme v zgradbah - Polipropilen (PP) - 2. del: Navodilo za ugotavljanje skladnosti
Plastics piping systems for soil and waste discharge (low and high temperature) within
the building structure - Polypropylene (PP) - Part 2: Guidance for the assessment of
conformity
Kunststoff-Rohrleitungssysteme zum Ableiten von Abwasser (niedriger und hoher
Temperatur) innerhalb der Gebäudestruktur - Polypropylen (PP) - Teil 2: Empfehlungen
für die Beurteilung der Konformität
Systèmes de canalisations en plastique pour l'évacuation des eaux-vannes et des eaux
usées (à basse et à haute température) à l'intérieur de la structure des bâtiments -
Polypropylène (PP) - Partie 2: Guide pour l'évaluation de la conformité
Ta slovenski standard je istoveten z: FprCEN/TR 1451-2
ICS:
23.040.20 Cevi iz polimernih materialov Plastics pipes
91.140.80 Drenažni sistemi Drainage systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL REPORT
FINAL DRAFT
RAPPORT TECHNIQUE
TECHNISCHER BERICHT
April 2010
ICS 23.040.20; 91.140.80 Will supersede ENV 1451-2:2001
English Version
Plastics piping systems for soil and waste discharge (low and
high temperature) within the building structure - Polypropylene
(PP) - Part 2: Guidance for the assessment of conformity
Systèmes de canalisations en plastique pour l'évacuation Kunststoff-Rohrleitungssysteme zum Ableiten von
des eaux-vannes et des eaux usées (à basse et à haute Abwasser (niedriger und hoher Temperatur) innerhalb der
température) à l'intérieur de la structure des bâtiments - Gebäudestruktur - Polypropylen (PP) - Teil 2:
Polypropylène (PP) - Partie 2: Guide pour l'évaluation de la Empfehlungen für die Beurteilung der Konformität
conformité
This draft Technical Report is submitted to CEN members for Technical Committee Approval. It has been drawn up by the Technical
Committee CEN/TC 155.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Warning : This document is not a Technical Report. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a Technical Report.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. FprCEN/TR 1451-2:2010: E
worldwide for CEN national Members.

Contents Page
Foreword .3
Introduction .4
1 Scope .5
2 Normative references .5
3 Terms and definitions .5
4 Abbreviated terms .8
5 General .8
6 Testing and inspection .8
6.1 Material specification .8
6.2 Grouping .9
6.2.1 General .9
6.2.2 Size groups .9
6.2.3 Fitting groups .9
6.3 Type testing (TT) .9
6.4 Batch release tests (BRTs) . 12
6.5 Process verification tests (PVTs) . 14
6.6 Audit tests (ATs) . 15
6.7 Indirect tests (ITs) . 16
6.8 Test records . 17
Bibliography . 18

Foreword
This document (FprCEN/TR 1451-2:2010) has been prepared by Technical Committee CEN/TC 155 “Plastics
piping systems and ducting systems”, the secretariat of which is held by NEN.
This document is currently submitted to the Technical Committee Approval.
This document will supersede ENV 1451-2:2001.
This Technical Report can be used to support elaboration of national third party certification procedures for
products conforming to EN 1451-1:1998.
This Technical Report is a Part of a System Standard for plastics piping systems of a particular material for a
specified application. There are a number of such System Standards.
System Standards are based on the results of the work undertaken in ISO/TC 138 "Plastics pipes, fittings and
valves for the transport of fluids", which is a Technical Committee of the International Organization for
Standardization (ISO).
They are supported by separate standards on test methods to which references are made throughout the
System Standard.
The System Standards are consistent with general standards on functional requirements and on
recommended practice for installation.
EN 1451 consists of the following Parts, under the general title Plastics piping systems for soil and waste
discharge (low and high temperature) within the building structure — Polypropylene (PP):
 Part 1: Specifications for pipes, fittings and the system
 Part 2: Guidance for the assessment of conformity (this CEN/TR)
Introduction
Figures 1 and 2 are intended to provide general information on the concept of testing and organisation of
those tests used for the purpose of the assessment of conformity. For each type of tests (i.e. type testing (TT),
batch release test (BRT), process verification test (PVT) and audit test (AT), this document details the
applicable characteristics to be assessed and the frequency and sampling of testing.
A typical scheme for the assessment of conformity of materials, pipes, fittings, valves or assemblies by
manufacturers is given in Figure 1.

Figure 1 — Typical scheme for the assessment of conformity by a manufacturer
A typical scheme for the assessment of conformity of materials, pipes, fittings, valves or assemblies by
manufacturers, including a third-party certification, is given in Figure 2.

Figure 2 — Typical scheme for the assessment of conformity by a manufacturer, including a third-
party certification
1 Scope
This Technical Report gives guidance for the assessment of conformity of materials, products and assemblies
in accordance with the applicable part(s) of EN 1451 intended to be included in the manufacturer’s quality plan
as part of the quality management system and for the establishment of third-party certification procedures.
NOTE 1 It is recommended that the quality management system conforms to or is no less stringent than the relevant
requirements to EN ISO 9001 [1].
NOTE 2 If third-party certification is involved, it is recommended that the certification body is accredited to
EN 45011 [2], EN 45012 [3] or EN ISO/IEC 17021 [4], as applicable.
In conjunction with EN 1451-1 this document is applicable to piping systems made of polypropylene (PP)
intended to be used for:
 inside buildings (marked with "B");
 for both inside buildings and buried in ground within the building structure (marked with "BD").
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 1451-1:1998, Plastics piping systems for soil and waste discharge (low and high temperature) within the
building structure — Polypropylene (PP) — Part 1: Specifications for pipes, fittings and the system
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 1451-1:1998 and the following apply.
3.1
certification body
impartial body, governmental or non-governmental, possessing the necessary competence and authority to
carry out certification of conformity according to given rules of procedure and management, preferably
accredited to EN 45011 [2]
3.2
inspection body
impartial organisation or company, preferably accredited to EN ISO/IEC 17020 [5], approved by the
certification body as possessing the necessary competence to carry out examination of a product design,
product, process or installation and determination of its conformity with specific requirements in accordance
with the relevant standard
3.3
testing laboratory
laboratory that measures, tests, calibrates or otherwise determines the characteristics of the performance of
materials and products for type testing, batch release testing, process verification testing, audit testing and/or
witness testing purpose(s), as applicable, preferably accredited to EN ISO/IEC 17025 [6]
3.4
quality management system
organizational structure, responsibilities, procedures, processes and resources for implementing quality
management
NOTE An example of a quality management system is given in EN ISO 9001 [1].
3.5
quality plan
document setting out the specific quality practices, resources and sequence of activities relevant to a
particular product or range of products
3.6
type testing
TT
testing performed to verify that the material, product, joint or assembly is capable of conforming to the
requirements given in the relevant standard
NOTE The type test results remain valid until there is a change in the material or product or assembly provided that
the process verification tests are done regularly.
3.7
batch release test
BRT
test performed by or on behalf of the manufacturer on a batch of materials or products, which has to be
satisfactorily completed before the batch can be released
3.8
process verification test
PVT
test performed by or on behalf of the manufacturer on materials, products or joints at specific intervals to
confirm that type test originally performed on these materials, products or joints continue to be valid and that
the process continues to be capable of producing products which conform to the requirements given in the
relevant standard
NOTE Such tests are not required to release batches of products and are carried out as a measure of process
control.
3.9
audit test
AT
test performed by a test laboratory on behalf of an inspection body or certification body to confirm that the
material, product, joint or assembly continues to conform to the requirements given in the relevant standard
and to provide information to assess the effectiveness of the quality management system
3.10
indirect test
IT
test performed by or on behalf of the manufacturer, different from that specified test for that particular
characteristic, having previously verified its correlation with the test specified
3.11
witness test
WT
testing accepted by an inspection or a certification body for type testing and/or audit testing, which is carried
out by or on behalf of the manufacturer and supervised by a representative of the inspection or certification
body, qualified in testing
3.12
material
clearly defined type of compound or formulation
3.13
compound/formulation
clearly defined homogenous mixture of base polymer with additives, i.e. anti-oxidants, pigments, stabilisers
and others, at a dosage level necessary for the processing and the intended use of the final product
3.14
material batch
clearly identified quantity of a given homogeneous compound/formulation manufactured under uniform
conditions and defined and identified by the compound/formulation manufacturer
3.15
product
pipe, fitting, or valve of a clearly identified type intended to be a part of a piping system
3.16
product batch
clearly identified collection of products, manufactured consecutively or continuously under the same
conditions, using the same compound/formulation conforming to the same specification
NOTE The production batch is defined and identified by the product manufacturer.
3.17
lot
clearly identifiable sub-division of a batch for inspection purposes
3.18
sample
one or more products drawn from the same production batch or lot, selected at random without regard to their
quality
NOTE The number of products in the sample is the sample size.
3.19
pipe batch
quantity of pipes, all of them of the same characteristics, and manufacturing process from the same
compound/formulation on the same machine.
NOTE The pipe batch is defined and identified by the pipe manufacturer.
3.20
fitting batch
quantity of fittings of the same characteristics, and manufacturing process from the same
compound/formulation, on the same machine.
NOTE The fitting batch is defined and identified by the fitting manufacturer.
3.21
group
collection of similar products from which samples are selected for testing purposes
3.22
assembly
test piece consisting of various products
3.23
sampling plan
specific plan which indicates the number of units of products or assemblies to be inspected
3.24
product type
pipe or fitting or valve or their main parts, of the same design, from a particular compound
3.25
cavity
part of the injection mould which gives the form to the injection moulded product
4 Abbreviated terms
NOTE For reasons of avoiding misunderstanding the following abbreviations are kept the same in each language.
For the same reason the terms are given in the three languages.
AT en : audit test
fr : essai d’audit
de : Überwachungsprüfung
BRT en : batch release test
fr : essai de libération de campagne de fabrication
de : Freigabeprüfung einer Charge
IT en : indirect test
fr : essai indirect
de : indirekte Prüfung
PVT en : process verification test
fr : essai de vérification du procédé de fabrication
de : Prozessüberprüfung
TT en : type test
fr : essai de type
de : Typprüfung
WT en :
...