CEN/TS 12666-2:2012

Plastics piping systems for non-pressure underground drainage and sewerage - Polyethylene (PE) - Part 2: Guidance for the assessment of conformity

This Technical Specification gives guidance for the assessment of conformity of materials, products, joints and assemblies in accordance with the applicable part(s) of EN 12666 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 9001:2008 [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.
NOTE 3    In order to help the readers, a summary of the test regime is given in Annex A.
In conjunction with EN 12666-1 (see Foreword) this document is applicable to piping systems made of polyethylene (PE):
-   non-pressure underground drainage and sewerage outside the building structure (application area code "U"), reflected in the marking of products by "U", and
-   for non-pressure underground drainage and sewerage for both buried in the ground within the building structure (application area code "D") and outside the building structure (application area code "U"), reflected in the marking of products by "UD".

Kunststoff-Rohrleitungssysteme für erdverlegte Abwasserkanäle und -leitungen - Polyethylen (PE) - Teil 2: Empfehlungen für die Beurteilung der Konformität

Diese Technische Spezifikation enthält Empfehlungen für die Beurteilung der Konformität von Werkstoffen, Erzeug¬nissen, Verbindungen und Bauteilkombinationen entsprechend des/der zutreffenden Teile(s) von EN 12666, die als Teil des Qualitätsmanagementsystems im Qualitätssicherungsplan des Herstellers und für die Ein¬führung von Verfahren der Drittstellenzertifizierung vorgesehen sind.
ANMERKUNG 1   Es wird empfohlen, dass das Qualitätsmanagementsystem EN ISO 9001:2008 [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.
ANMERKUNG 3   Zur Unterstützung der Leser enthält Anhang A eine Zusammenfassung des Prüfsystems.
Dieses Dokument gilt in Zusammenhang mit EN 12666-1 (siehe Vorwort) für Rohrleitungssysteme aus Polyethylen (PE) für folgende vorgesehene Verwendungszwecke:
-   drucklose erdverlegte Abwasserkanäle und  leitungen außerhalb der Gebäudestruktur (Anwen¬dungs-kennzeichen „U“), dies spiegelt sich in den Kennzeichnungen „U“ wider; und
-   drucklose erdverlegte Abwasserkanäle und  leitungen sowohl innerhalb der Gebäudestruktur (Anwendungskennzeichen „D“) als auch außerhalb der Gebäudestruktur (Anwendungskennzeichen „U“), dies spiegelt sich in den Kennzeichnungen „UD“ wider.

Systèmes de canalisations en plastique pour les branchements et les collecteurs d'assainissement sans pression enterrés - Polyéthylène (PE) - Partie 2: Guide pour l'évaluation de la conformité

La présente Spécification technique fournit un guide pour l’évaluation de la conformité des matières, produits et montages en conformité avec la (les) partie(s) applicable(s) de l’EN 12666, destiné à être inclus dans le plan qualité du fabricant dans le cadre du système de management de la qualité et pour l’établissement de 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 l'EN ISO 9001:2008 [1] ou au moins aussi strict que ces exigences.
NOTE 2   En cas de certification par tierce partie, il est recommandé que l'organisme de certification soit accrédité selon l'EN 45011 [2], l'EN 45012 [3] ou l'EN ISO/CEI 17021 [4], suivant le cas.
NOTE 3    Afin d’aider les lecteurs, un résumé du régime d'essais est fourni en Annexe A.
Conjointement avec l'EN 12666 1 (voir l'Avant-propos), le présent document s'applique aux systèmes de canalisations fabriqués à partir de polyéthylène (PE) :
-   pour les branchements et les collecteurs d'assainissement enterrés sans pression à l'extérieur de la structure du bâtiment (code de zone d’application « U »), repérés au niveau du marquage des produits par « U » et
-   pour les branchements et les collecteurs d'assainissement enterrés sans pression à la fois enterrés dans la structure du bâtiment (code de zone d'application « D ») et à l'extérieur de la structure du bâtiment (code de zone d'application « U »), repérés au niveau du marquage des produits par « UD ».

Cevni sistemi iz polimernih materialov za odpadno vodo in kanalizacijo, ki delujejo po težnostnem principu in so položeni v zemljo - Polietilen (PE) - 2. del: Navodilo za ugotavljanje skladnosti

Ta tehnična specifikacija vsebuje navodila za ugotavljanje skladnosti materialov, izdelkov, spojev in sestavov z ustreznimi deli standarda EN 12666, ki naj bi se vključila v poslovnik kakovosti proizvajalca kot del sistema vodenja kakovosti, vsebuje pa tudi navodila za vzpostavitev postopka certificiranja, ki ga izvajajo tretje osebe. Ta dokument se v povezavi s standardom EN 12666-1 (glej Predgovor) uporablja za cevne sisteme iz polietilena (PE): – za sisteme za odvodnjavanje in kanalizacijo, ki delujejo po težnostnem principu in so položeni v zemljo zunaj stavbe (koda območja uporabe »U«), kar je razvidno iz oznak »U« na izdelkih, ter – za sisteme za odvodnjavanje in kanalizacijo, ki delujejo po težnostnem principu in so položeni v zemljo, za vkopane sisteme v stavbi (koda območja uporabe »D«) in zunaj stavbe (koda območja uporabe »U«), kar je razvidno iz oznak »UD« na izdelkih.

General Information

• Status: Published
• Publication Date: 28-Aug-2012
• ICS: 23.040.01 - Pipeline components and pipelines in general
• ICS: 23.040.05 - Pipeline and its parts for external sewage systems
• ICS: 91.140.80 - Drainage systems
• ICS: 93.030 - External sewage systems
• Technical Committee: CEN/TC 155 - Plastics piping systems and ducting systems
• Drafting Committee: CEN/TC 155/WG 33 - Thermoplastics piping systems for soil & waste discharge and non-pressure drainage and sewerage
• Current Stage: 9060 - Closure of 2 Year Review Enquiry - Review Enquiry
• Start Date: 03-Jun-2024
• Completion Date: 03-Jun-2024
• Ref Project: SIST-TS CEN/TS 12666-2:2012 - Plastics piping systems for non-pressure underground drainage and sewerage - Polyethylene (PE) - Part 2: Guidance for the assessment of conformity

Relations

• Replaces: CEN/TS 12666-2:2005 - Plastics piping systems for non-pressure underground drainage and sewerage - Polyethylene (PE) - Part 2: Guidance for the assessment of conformity
• Effective Date: 09-Oct-2010

Overview

CEN/TS 12666-2:2012 provides guidance for the assessment of conformity for polyethylene (PE) piping systems used in non‑pressure underground drainage and sewerage. It complements EN 12666‑1 (specifications for pipes, fittings and systems) by describing how manufacturers and third‑party bodies should organise testing, inspection and certification as part of a quality management system.

Key points:

• Applies to PE systems for outside‑building drainage (marked U) and for drainage both inside and outside buried in ground (marked UD).
• Focuses on conformity assessment of materials, products, joints and assemblies.
• Intended to be included in the manufacturer’s quality plan and used to set up third‑party certification procedures.

Key topics and technical requirements

CEN/TS 12666‑2:2012 covers practical elements of conformity assessment without prescribing new material performance limits (those are in EN 12666‑1). Major technical topics include:

• Types of tests and definitions

  • Type testing (TT) - demonstrates a product meets standard requirements.
  • Batch release tests (BRT) - tests run by the manufacturer before releasing a production batch.
  • Process verification tests (PVT) - periodic checks that production remains capable of conforming.
  • Audit tests (AT) and witness tests (WT) - independent checks by inspection/certification bodies.
  • Indirect tests (IT) - alternative correlated tests used by manufacturers.

• Testing, sampling and grouping

  • Guidance on grouping products (size groups and fitting groups) for efficient testing - one nominal diameter per size group is selected for test sampling.
  • Sampling plans, test records and traceability requirements are specified to support conformity claims.

• Quality management and accreditation

  • Recommends quality systems be at least as stringent as EN ISO 9001:2008.
  • Recommends accreditation of certification bodies and labs (e.g., EN 45011 / EN ISO/IEC 17021, EN ISO/IEC 17025, EN ISO/IEC 17020).

• Supporting information

  • Annex A provides a summary of the test regime to help implementers.

Practical applications and users

Who uses CEN/TS 12666‑2:2012:

• Manufacturers of PE pipes, fittings and assemblies - to structure factory production control and quality plans.
• Certification and inspection bodies - to design third‑party certification schemes and audit procedures.
• Testing laboratories - to align test programmes and reporting with conformity requirements.
• Specifiers, consultants and procurement teams - to verify that supplied PE drainage systems meet EN 12666 conformity processes.

Practical benefits:

• Standardises how conformity is demonstrated across the supply chain.
• Helps reduce redundant testing through grouping and indirect tests.
• Supports market confidence via accredited third‑party certification.

Related standards

• EN 12666‑1: Specifications for PE pipes, fittings and the system
• EN ISO 9001:2008 - quality management systems
• EN ISO/IEC 17025 - testing laboratory accreditation
• EN ISO/IEC 17020 - inspection bodies
• EN 45011 / EN ISO/IEC 17021 - certification body accreditation

Keywords: CEN/TS 12666‑2:2012, plastics piping systems, polyethylene PE, non‑pressure underground drainage, conformity assessment, type testing, batch release test, process verification, audit test, quality plan, EN 12666.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2012
1DGRPHãþD
SIST-TS CEN/TS 12666-2:2006
Cevni sistemi iz polimernih materialov za odpadno vodo in kanalizacijo, ki delujejo
po težnostnem principu in so položeni v zemljo - Polietilen (PE) - 2. del: Navodilo
za ugotavljanje skladnosti
Plastics piping systems for non-pressure underground drainage and sewerage -
Polyethylene (PE) - Part 2: Guidance for the assessment of conformity
Kunststoff-Rohrleitungssysteme für erdverlegte Abwasserkanäle und -leitungen -
Polyethylen (PE) - Teil 2: Empfehlungen für die Beurteilung der Konformität
Systèmes de canalisations en plastique pour les branchements et les collectuers
d'assainissement enterrés sans pression - Polyéthylène (PE) - Partie 2: Guide pour
l'évaluation de la conformité
Ta slovenski standard je istoveten z: CEN/TS 12666-2:2012
ICS:
23.040.01 Deli cevovodov in cevovodi Pipeline components and
na splošno pipelines in general
91.140.80 Drenažni sistemi Drainage systems
93.030 Zunanji sistemi za odpadno External sewage systems
vodo
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL SPECIFICATION
CEN/TS 12666-2
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
August 2012
ICS 23.040.01; 91.140.80 Supersedes CEN/TS 12666-2:2005
English Version
Plastics piping systems for non-pressure underground drainage
and sewerage - Polyethylene (PE) - Part 2: Guidance for the
assessment of conformity
Systèmes de canalisations en plastique pour les Kunststoff-Rohrleitungssysteme für erdverlegte
branchements et les collecteurs d'assainissement enterrés Abwasserkanäle und -leitungen - Polyethylen (PE) - Teil 2:
sans pression - Polyéthylène (PE) - Partie 2: Guide pour Empfehlungen für die Beurteilung der Konformität
l'évaluation de la conformité
This Technical Specification (CEN/TS) was approved by CEN on 23 July 2012 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit their
comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available
promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS)
until the final decision about the possible conversion of the CEN/TS into an EN is reached.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 12666-2:2012: 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 .9
6 Testing and inspection .9
6.1 Material specification .9
6.2 Grouping .9
6.2.1 General .9
6.2.2 Size groups .9
6.2.3 Fitting groups . 10
6.3 Type testing . 10
6.4 Batch release tests . 13
6.5 Process verification tests . 15
6.6 Audit tests . 16
6.7 Indirect tests . 17
6.8 Test records . 18
Annex A (informative) Survey of test regime . 19
Bibliography . 20

Foreword
This document (CEN/TS 12666-2:2012) has been prepared by Technical Committee CEN/TC 155 “Plastics
piping systems and ducting systems”, the secretariat of which is held by NEN.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes CEN/TS 12666-2:2005.
EN 12666 consists of the following parts, under the general title Plastics piping systems for non-pressure
underground drainage and sewerage - Polyethylene (PE):
 Part 1: Specifications for pipes, fittings and the system:
 Part 2: Guidance for the assessment of conformity (this European Standard).
According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following
countries are bound to announce this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

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 test, 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 as well as the frequency and sampling of testing.
A typical scheme for the assessment of conformity of materials, pipes, fittings, joints 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, joints 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 Specification gives guidance for the assessment of conformity of materials, products, joints and
assemblies in accordance with the applicable part(s) of EN 12666 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 9001:2008 [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.
NOTE 3 In order to help the readers, a summary of the test regime is given in Annex A.
In conjunction with EN 12666-1 (see Foreword) this document is applicable to piping systems made of
polyethylene (PE):
 non-pressure underground drainage and sewerage outside the building structure (application area code
"U"), reflected in the marking of products by "U", and
 for non-pressure underground drainage and sewerage for both buried in the ground within the building
structure (application area code "D") and outside the building structure (application area code "U"),
reflected in the marking of products by "UD".
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN 12666-1:2005+A1:2011, Plastics piping systems for non-pressure underground drainage and sewerage 
Polyethylene (PE)  Part 1: Specifications for pipes, fittings and the system
3 Terms and definitions
For the purposes of this document, the following terms and definitions given in EN 12666-1:2005+A1:2011
and the following apply.
3.1
certification body
impartial body, governmental or non-governmental, possessing the necessary competence and responsibility
to carry out certification of conformity according to given rules of procedure and management
Note 1 to entry: A certification body is preferably accredited to EN 45011 [2] / ISO/IEC Guide 65 [2].
3.2
inspection body
impartial organisation or company, approved by the certification body as possessing the necessary
competence to verify and/or to carry out initial type testing, audit testing and inspection of the manufacturer's
factory production control in accordance with the relevant standard
Note 1 to entry: An inspection body is preferably accredited to EN ISO/IEC 17020 [5].
3.3
testing laboratory
laboratory which measures, tests, calibrates or otherwise determines the characteristics of the performance of
materials and products
Note 1 to entry: In the context of this part of EN 12666, the materials and products can be subjected to type testing,
batch release testing, process verification testing, audit testing, and witness testing, as applicable.
Note 2 to entry: A testing laboratory is preferably accredited to EN ISO/IEC 17025[6].
3.4
quality management system
management system to direct and control an organisation with regard to quality
Note 1 to entry: Requirements for quality management systems are given in EN ISO 9001:2008 [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 prove that the material, product, joint or assembly is capable of conforming to the
requirements given in the relevant standard
Note 1 to entry: 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 the process continues to be capable of producing products which conform to the requirements
given in the relevant standard
Note 1 to entry: Such tests are not required to release batches of materials or 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 specified test
3.11
witness test
WT
test 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
generic term for compositions of compounds/formulations grouped by families, expressed by generic names,
e.g. polypropylene, stainless steel, brass or EPDM
Note 1 to entry: Definition from European Commission, Directorate-General for Enterprise and Industry, Sub-group on
Product Testing Procedures (EC, DG ENT and IND, SG PTP).
3.13
compound/formulation
clearly defined homogenous mixture of base polymer with additives, i.e. antioxidants, pigments, stabilizers
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 which the
manufacturer puts on the market
3.16
product batch
clearly identified collection of products, manufactured consecutively or continuously under the same
conditions, using the same material conforming to the same specification
Note 1 to entry: 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 1 to entry: The number of products in the sample is the sample size.
3.19
group
collection of similar products from which samples are selected for testing purposes
3.20
component
product manufactured out of a specific composition of compound/formulation, brought to the market as part of
another product or as a spare part
3.21
joint
connection between two products
3.22
assembled product
assembled final product using two or more single parts
3.23
thermoplastics fabricated fitting
fitting produced from pipe and/or from injection-moulded fittings by thermoforming, solvent-cementing or
welding
3.24
assembly
product that can be dismantled into a set of components
EXAMPLE A test piece consisting of various products.
3.25
sampling plan
specification of the type of sampling to be used combined with the operational specification of the entities or
increments to be taken, the samples to be constituted and the measurements or tests to be made
EXAMPLE A specific plan which indicates the number of units of products or assemblies to be inspected.
3.26
product type
generic description of a product
EXAMPLE A pipe or fitting or valve or their main parts, of the same design, from a particular compound.
3.27
cavity
(moulding) space within a mould to be filled to form the moulded product
EXAMPLE That part of an injection mould which gives the form to the injection-moulded product.
4 Abbreviated terms
To avoid misunderstanding, the abbreviations in this clause are defined as being the same in each language.
For the same reason, the terms are given in the three languages, English, French and German.
EN FR DE
AT audit test essai d’audit Überwachungsprüfung
BRT batch release test essai de libération de campagne de fabrication Freigabeprüfung einer Charge

IT indirect test essai indirect indirekte Prüfung
PVT process verification test essai de vérification du procédé de fabrication Prozessüberprüfung

TT type test essai de type Typprüfung
WT witness testing essai témoin Prüfung unter Aufsicht
SIST-TS C
...