SIST-TS CEN ISO/TS 21003-7:2009
(Main)Multilayer piping systems for hot and cold water installations inside buildings - Part 7: Guidance for the assessment of conformity (ISO/TS 21003-7:2008)
Multilayer piping systems for hot and cold water installations inside buildings - Part 7: Guidance for the assessment of conformity (ISO/TS 21003-7:2008)
This Technical Specification is applicable, in conjunction with the other parts of ISO 21003 (see Foreword), to multilayer piping systems intended to be used for hot and cold water installations inside buildings for the conveyance of water - whether or not the water is intended for human consumption (domestic systems) or for heating systems - under specified design pressures and temperatures appropriate to the class of application (see Table 1 of ISO 21003-1:2008). It gives guidance for the assessment of conformity, to be included in the manufacturer's quality plan as part of the quality system. It includes: - requirements for materials, components, joints and assemblies given in the applicable part(s) of ISO 21003; - requirements for the manufacturer's quality system (e.g. ISO 9001 [2]); - definitions and procedures to be used if third-party certification is involved.
Mehrschichtverbund-Rohrleitungssysteme für die Warm- und Kaltwasserinstallation innerhalb von Gebäuden - Teil 7: Empfehlungen für die Beurteilung der Konformität (ISO/TS 21003-7:2008)
Diese Technische Spezifikation gilt, zusammen mit den anderen Teilen von ISO 21003 (siehe Vorwort), für Mehrschichtverbund-Rohrleitungssysteme, die in der Warm- und Kaltwasserinstallation innerhalb von Gebäuden für den Transport von Wasser eingesetzt werden – unabhängig davon, ob das Wasser für den menschlichen Gebrauch (Hausinstallation) oder für Heizungsanlagen verwendet wird - unter Berücksichtigung des betreffenden zulässigen Betriebsdruckes und der für die jeweilige Anwendungsklasse geltenden Temperaturen (siehe Tabelle 1 von ISO 21003-1:2008). Sie gibt Empfehlungen für die Beurteilung der Konformität, die als Teil des Qualitätssicherungssystems im Qualitätssicherungsplan des Herstellers enthalten sein müssen.
Diese Technische Spezifikation enthält:
a) Anforderungen an Werkstoffe, Rohrleitungsteile, Verbindungen und Bauteilkombinationen, die im betreffenden Teil der ISO 21003 festgelegt sind;
b) Anforderungen an das Qualitätssicherungssystem des Herstellers (z. B. ISO 9001 [2]);
c) bei Drittstellenzertifizierung anzuwendende Definitionen und Verfahren.
ANMERKUNG Bei Drittstellenzertifizierung wird empfohlen, diese durch eine unabhängige Zertifizierungs¬stelle durchführen zu lassen, die nach ISO/IEC Guide 65 [3] oder, sofern zutreffend, ISO/IEC 17021 [4] zugelassen ist.
Systèmes de canalisations multicouches pour installations d'eau chaude et froide à l'intérieur des bâtiments - Partie 7: Directives pour l'évaluation de la conformité (ISO/TS 21003-7:2008)
L'ISO/TS 21003-7:2008, conjointement avec les autres parties de l'ISO 21003, est applicable aux systèmes de canalisations multicouches destinés aux installations d'eau chaude et froide pour le transport de l'eau à l'intérieur des bâtiments — qu'elle soit ou non destinée à la consommation humaine (systèmes domestiques) et à des systèmes de chauffage — à des pressions et des températures de calcul correspondant à la classe d'application. Elle donne un guide pour l'évaluation de la conformité, à inclure dans le plan qualité du fabricant, dans le cadre du système qualité.
Elle comporte
les exigences relatives aux matières, composants, assemblages et montages, énoncées dans la(les) partie(s) applicable(s) de l'ISO 21003,
les exigences relatives au système qualité du fabricant (par exemple l'ISO 9001),
les définitions et les procédures à appliquer en cas de certification par une tierce partie.
Večslojni cevni sistemi za napeljave z vročo in hladno vodo v stavbah - 7. del: Navodilo za ugotavljanje skladnosti (ISO/TS 21003-7:2008)
Ta tehnična specifikacija velja skupaj z drugimi deli ISO 21003 (glej Pregovor) za večslojne cevne sisteme, namenjeni za napeljave z vročo in hladno vodo v stavbah za prenašanje vode — ne glede na to, ali je voda namenjena za prehrano ljudi (domači sistemi) ali za sisteme ogrevanja – pod določenimi računskimi tlaki in temperaturami, primernimi za razred uporabe (glej preglednico 1 iz ISO 21003-1:2008). Podaja navodilo za ugotavljanje skladnosti, ki bo vključeno v načrt kakovosti proizvajalca kot del sistema kakovosti. Vključuje: - zahteve za materiale, sestavne dele, spoje in sklope, podane v tistih delih ISO 21003, ki se uporabljajo; - zahteve za sistem kakovosti proizvajalca (npr. ISO 9001 [2]); - definicije in postopke, ki se uporabljajo, če je vključeno certificiranje s strani tretje stranke.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST-TS CEN ISO/TS 21003-7:2009
01-januar-2009
9HþVORMQLFHYQLVLVWHPL]DQDSHOMDYH]YURþRLQKODGQRYRGRYVWDYEDKGHO
1DYRGLOR]DXJRWDYOMDQMHVNODGQRVWL ,6276
Multilayer piping systems for hot and cold water installations inside buildings - Part 7:
Guidance for the assessment of conformity (ISO/TS 21003-7:2008)
Mehrschichtverbund-Rohrleitungssysteme für die Warm- und Kaltwasserinstallation
innerhalb von Gebäuden - Teil 7: Empfehlungen für die Beurteilung der Konformität
(ISO/TS 21003-7:2008)
Systèmes de canalisations multicouches pour installations d'eau chaude et froide à
l'intérieur des bâtiments - Partie 7: Directives pour l'évaluation de la conformité (ISO/TS
21003-7:2008)
Ta slovenski standard je istoveten z: CEN ISO/TS 21003-7:2008
ICS:
23.040.01 Deli cevovodov in cevovodi Pipeline components and
na splošno pipelines in general
91.140.60 Sistemi za oskrbo z vodo Water supply systems
SIST-TS CEN ISO/TS 21003-7:2009 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST-TS CEN ISO/TS 21003-7:2009
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SIST-TS CEN ISO/TS 21003-7:2009
TECHNICAL SPECIFICATION
CEN ISO/TS 21003-7
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
July 2008
ICS 23.040.20; 91.140.60
English Version
Multilayer piping systems for hot and cold water installations
inside buildings - Part 7: Guidance for the assessment of
conformity (ISO/TS 21003-7:2008)
Systèmes de canalisations multicouches pour installations Mehrschichtverbund-Rohrleitungssysteme für die Warm-
d'eau chaude et froide à l'intérieur des bâtiments - Partie 7: und Kaltwasserinstallation innerhalb von Gebäuden - Teil 7:
Guide pour l'évaluation de la conformité (ISO/TS 21003- Empfehlungen für die Beurteilung der Konformität (ISO/TS
7:2008) 21003-7:2008)
This Technical Specification (CEN/TS) was approved by CEN on 25 June 2008 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, 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN ISO/TS 21003-7:2008: E
worldwide for CEN national Members.
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CEN ISO/TS 21003-7:2008 (E)
Contents Page
Foreword.3
2
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CEN ISO/TS 21003-7:2008 (E)
Foreword
This document (CEN ISO/TS 21003-7:2008) has been prepared by Technical Committee CEN/TC 155
“Plastics piping systems and ducting systems", the secretariat of which is held by NEN, in collaboration with
Technical Committee ISO/TC 138 "Plastics pipes, fittings and valves for the transport of fluids".
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.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria, 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 the United Kingdom.
3
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SIST-TS CEN ISO/TS 21003-7:2009
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SIST-TS CEN ISO/TS 21003-7:2009
TECHNICAL ISO/TS
SPECIFICATION 21003-7
First edition
2008-07-01
Multilayer piping systems for hot and
cold water installations inside
buildings —
Part 7:
Guidance for the assessment of
conformity
Systèmes de canalisations multicouches pour installations d'eau
chaude et froide à l'intérieur des bâtiments —
Partie 7: Guide pour l'évaluation de la conformité
Reference number
ISO/TS 21003-7:2008(E)
©
ISO 2008
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SIST-TS CEN ISO/TS 21003-7:2009
ISO/TS 21003-7:2008(E)
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Published in Switzerland
ii © ISO 2008 – All rights reserved
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ISO/TS 21003-7:2008(E)
Contents Page
Foreword. iv
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Definitions, symbols and abbreviated terms . 2
3.1 Definitions . 2
3.2 Abbreviated terms . 4
4 Requirements . 5
4.1 General. 5
4.2 Testing and inspection. 5
4.2.1 Grouping. 5
4.2.2 Type testing (TT). 6
4.2.3 Batch release tests (BRTs) . 10
4.2.4 Process verification tests (PVTs). 12
4.2.5 Audit tests (ATs) . 12
4.2.6 Indirect tests (ITs). 13
4.2.7 Inspection records and test records. 13
Annex A (normative) Conditions considered as leading to a change in the case of PE-RT material
and non-stressed-designed materials. 14
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ISO/TS 21003-7:2008(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
In other circumstances, particularly when there is an urgent market requirement for such documents, a
technical committee may decide to publish other types of document:
— an ISO Publicly Available Specification (ISO/PAS) represents an agreement between technical experts in
an ISO working group and is accepted for publication if it is approved by more than 50 % of the members
of the parent committee casting a vote;
— an ISO Technical Specification (ISO/TS) represents an agreement between the members of a technical
committee and is accepted for publication if it is approved by 2/3 of the members of the committee casting
a vote.
An ISO/PAS or ISO/TS is reviewed after three years in order to decide whether it will be confirmed for a
further three years, revised to become an International Standard, or withdrawn. If the ISO/PAS or ISO/TS is
confirmed, it is reviewed again after a further three years, at which time it must either be transformed into an
International Standard or be withdrawn.
ISO/TS 21003-7 was prepared by the European Committee for Standardization (CEN) Technical Committee
CEN/TC 155, Plastics piping systems and ducting systems, in collaboration with Technical Committee
ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 2, Plastics pipes
and fittings for water supplies.
This Technical Specification can be used to support elaboration of national third-party certification procedures
for products conforming to the applicable part(s) of ISO 21003.
It forms part of a system standard for multilayer piping systems of a particular material for a specified
application. System standards are supported by separate standards on test methods to which reference is
made throughout the system standard. The system standards are consistent with general standards on
functional requirements and on recommended practice for installation.
ISO 21003 consists of the following parts, under the general title Multilayer piping systems for hot and cold
water installations inside buildings:
⎯ Part 1: General
⎯ Part 2: Pipes
⎯ Part 3: Fittings
⎯ Part 5: Fitness for purpose of the system
⎯ Part 7: Guidance for the assessment of conformity [Technical Specification]
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ISO/TS 21003-7:2008(E)
NOTE 1 ISO 21003 does not include a Part 4: Ancillary equipment, or a Part 6: Guidance for installation.
For ancillary equipment, separate standards can apply.
For guidance on installation, reference is made to separate documents.
NOTE 2 Guidance on installation of plastics piping systems made from various materials intended to be used for hot
[1]
and cold water installations is given in ENV 12108 .
Other system standards which, at the date of publication of this part of ISO 21003, had been published for
plastics piping systems used for the same application are the following:
ISO 15874, Plastics piping systems for hot and cold water installations — Polypropylene (PP) (identical to
EN ISO 15874)
ISO 15875, Plastics piping systems for hot and cold water installations — Crosslinked polyethylene
(PE-X) (identical to EN ISO 15876)
ISO 15876, Plastics piping systems for hot and cold water installations — Polybutylene (PB) (identical to
EN ISO 15876)
ISO 15877, Plastics piping systems for hot and cold water installations — Chlorinated poly(vinyl chloride)
(PVC-C) (identical to EN ISO 15877)
ISO 22391, Plastics piping systems for hot and cold water installations ⎯ Polyethylene of raised
temperature resistance (PE-RT)
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SIST-TS CEN ISO/TS 21003-7:2009
ISO/TS 21003-7:2008(E)
Introduction
ISO 21003 specifies the requirements for multilayer piping systems. The piping system is intended to be used
for hot and cold water installations inside buildings.
In respect of potentially adverse effects on the quality of water intended for human consumption, caused by
the products covered by ISO 21003:
⎯ no information is provided as to whether the product may be used without restriction in any of the member
states of the EU or EFTA;
⎯ it should be noted that, while awaiting the adoption of verifiable European criteria, existing national
regulations concerning the use and/or the characteristics of these products remain in force.
Requirements and test methods for material and components are specified in ISO 21003-2 and ISO 21003-3.
Characteristics relating to fitness for purpose (mainly for joints) are covered in ISO 21003-5.
This Technical Specification gives guidance for the assessment of conformity of materials, components, joints
and assemblies and it is intended to be used by certification bodies, inspection bodies, testing laboratories
and manufacturers.
vi © ISO 2008 – All rights reserved
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SIST-TS CEN ISO/TS 21003-7:2009
TECHNICAL SPECIFICATION ISO/TS 21003-7:2008(E)
Multilayer piping systems for hot and cold water installations
inside buildings —
Part 7:
Guidance for the assessment of conformity
1 Scope
This Technical Specification is applicable, in conjunction with the other parts of ISO 21003 (see Foreword), to
multilayer piping systems intended to be used for hot and cold water installations inside buildings for the
conveyance of water — whether or not the water is intended for human consumption (domestic systems) or
for heating systems — under specified design pressures and temperatures appropriate to the class of
application (see Table 1 of ISO 21003-1:2008). It gives guidance for the assessment of conformity, to be
included in the manufacturer's quality plan as part of the quality system.
It includes:
⎯ requirements for materials, components, joints and assemblies given in the applicable part(s) of
ISO 21003;
[2]
⎯ requirements for the manufacturer's quality system (e.g. ISO 9001 );
⎯ definitions and procedures to be used if third-party certification is involved.
NOTE If third-party certification is involved, it is recommended that the certification body be accredited to
[3] [4]
ISO/IEC Guide 65 or ISO/IEC 17021 , as applicable.
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.
ISO 2859-1, Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed by
acceptance quality limit (AQL) for lot-by-lot inspection
ISO 3951-1, Sampling procedures for inspection by variables — Part 1: Specification for single sampling plans
indexed by acceptance quality limit (AQL) for lot-by-lot inspection for a single quality characteristic and a
single AQL
ISO 17456:2006, Plastics piping systems ― Multilayer pipes ― Determination of long-term strength (identical
to EN ISO 17456:2006)
ISO 21003-1:2008, Multilayer piping systems for hot and cold water installations inside buildings — Part 1:
General (identical to EN ISO 21003-1:2008)
ISO 21003-2:2008, Multilayer piping systems for hot and cold water installations inside buildings — Part 2:
Pipes (identical to EN ISO 21003-2:2008)
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ISO/TS 21003-7:2008(E)
ISO 21003-3:2008, Multilayer piping systems for hot and cold water installations inside buildings — Part 3:
Fittings (identical to EN ISO 21003-3:2008)
ISO 21003-5:2008, Multilayer piping systems for hot and cold water installations inside buildings — Part 5:
Fitness for purpose of the system (identical to EN ISO 21003-5:2008)
1)
ISO 22391-2:— , Plastics piping systems for hot and cold water installations — Polyethylene of raised
temperature resistance (PE-RT) ― Part 2: Pipes
3 Definitions, symbols and abbreviated terms
For the purposes of this Technical Specification, the definitions, symbols and abbreviated terms given in
ISO 21003-1:2008 apply, together with the following.
3.1 Definitions
3.1.1
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
3.1.2
inspection body
impartial organization or company, approved by a 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
3.1.3
testing laboratory
laboratory which measures, tests, calibrates or otherwise determines the characteristics of the performance of
materials and products
3.1.4
quality system
organizational structure, responsibilities, procedures, processes and resources for implementing quality
management
[2]
NOTE An example of a quality system is ISO 9001 .
3.1.5
quality plan
document setting out the specific quality practices, resources and sequence of activities relevant to a
particular product or range of products
3.1.6
type testing
TT
testing performed to verify that the material, component, joint or assembly is capable of conforming to the
requirements given in the relevant standard
3.1.7
preliminary type testing
PTT
type testing carried out by or on behalf of the manufacturer
1) To be published. (Revision of ISO 22391-2:2007)
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3.1.8
initial type testing
ITT
type testing carried out by or on behalf of a certification body for certification purposes
3.1.9
batch release test
BRT
test performed by or on behalf of the manufacturer on a batch of components, which has to be satisfactorily
completed before the batch can be released
3.1.10
process verification test
PVT
test performed by or on behalf of the manufacturer on materials, components, joints or assemblies at specific
intervals to confirm that the process continues to be capable of producing components which conform to the
requirements given in the relevant standard
NOTE Such tests are not required to release batches of components and are carried out as a measure of process
control.
3.1.11
audit test
AT
test performed by or on behalf of a certification body to confirm that the material, component, 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 system
3.1.12
indirect test
IT
test performed by or on behalf of the manufacturer, different from the test specified for that particular
characteristic, having previously verified its correlation with the test specified
3.1.13
witness testing
WT
testing accepted by a certification body for initial type testing and/or audit testing, which is carried out by or on
behalf of the manufacturer and supervised by a representative of the certification body qualified in testing
3.1.14
material or compound batch
clearly identifiable quantity of a particular material or compound
3.1.15
production batch
clearly identifiable collection of units, manufactured consecutively or continuously under the same conditions,
using material or compound conforming to the same specification
3.1.16
lot
clearly identifiable sub-division of a batch for inspection purposes
3.1.17
sample
one or more units of product drawn from a batch or lot, selected at random without regard to their quality
NOTE The number of units of product in the sample is the sample size.
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ISO/TS 21003-7:2008(E)
3.1.18
acceptance quality limit
AQL
worst tolerable process fraction nonconforming when a continuing series of lots is submitted for
acceptance sampling
NOTE 1 See ISO 2859-1 and ISO 3951-1.
NOTE 2 The designation of an AQL does not imply that a manufacturer has the right knowingly to supply any
nonconforming unit of product.
3.1.19
inspection level
relationship between the lot or batch size and the sample size
NOTE See ISO 2859-1.
3.1.20
group
collection of similar components from which samples are selected for testing purposes
3.2 Abbreviated terms
NOTE 1 To avoid misunderstandings, the following abbreviations have been kept the same in each language. For the
same reason, the corresponding terms are given here in three languages (en: English, fr: French, de: German).
NOTE 2 In the French language the abbreviation AQL for “acceptance quality limit” is NQA. However, for the purposes
of this Technical Specification, the same abbreviation (AQL) is used for all three languages.
AQL en: acceptance quality limit
fr: niveau de qualité acceptable
de: annehmbare Qualitätsgrenzlage
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
ITT en: initial type testing
fr: essai de type initial
de: Erst-Typprüfung
PTT en: preliminary type testing
fr: essai de type préliminaire
de: vorausgehende Typprüfung
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
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WT en: witness testing
fr: essai témoin
de: Prüfung unter Aufsicht
4 Requirements
4.1 General
4.1.1 Materials, components, joints and assemblies shall conform to the requirements given in
ISO 21003-1, ISO 21003-2, ISO 21003-3 and ISO 21003-5, as applicable.
4.1.2 Components and/or assemblies shall be produced by the manufacturer under a quality system which
includes a quality plan.
4.2 Testing and inspection
4.2.1 Grouping
For the purposes of this Technical Specification, the following groups apply.
4.2.1.1 Pressure groups
Two pressure groups are defined, as given in Table 1.
For testing purposes, one individual operating pressure, p , shall be selected from each group.
oper
Table 1 — Pressure groups
Pressure group Operating pressure, p
oper
bar
1 4; 6
2 8; 10
4.2.1.2 Size groups
Three size groups are defined for pipes and fittings, as given in Table 2.
For testing purposes, one individual nominal diameter, d , shall be selected from each group.
n
Table 2 — Size groups
Size group Nominal diameter, d
n
mm
1 10 u d u 26
n
2 26 < d u 63
n
3 63 < d
n
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4.2.1.3 Fitting groups
Four groups of fittings having a similar design are defined, as given in Table 3.
For testing purposes, one individual fitting shall be selected from each group.
Table 3 — Fitting groups
Fitting group Type of fitting
1 Bends
2 Elbows, tees
3 Reducers, couplers, end caps
Unions, flange adaptors, adaptor pieces and/or
4
their plastics parts, plus others
4.2.2 Type testing (TT)
4.2.2.1 General
Relevant type tests shall be carried out whenever there is a change in design, in material and/or in the
production method, other than routine in-process adjustments, and/or whenever there is an extension of the
product range.
Type tests shall demonstrate that the products conform to all requirements for the characteristics given in
Table 5 to Table 8, as applicable. The material characteristics of stress-designed materials shall be evaluated
in accordance with the reference product standard.
Conditions considered as leading to a change of material are given in Table 4.
Table 4 — Conditions considered to lead to a change of material
Type of material change Conditions
Change of stress-designed material (M1) Defined in Part 7 of the relevant reference product standard
For PE-RT, see Annex A
Change of non-stress-designed material (M2) Change of supplier
Change of formulation and/or additives
Change of polymer type
Change of metal (M3) Change of supplier
Change of alloy/composition
Change of welding system
Change of adhesive (M5) Change of supplier
Change of formulation
Change of chemical nature
6 © ISO 2008 – All rights reserved
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SIST-TS CEN ISO/TS 21003-7:2009
ISO/TS 21003-7:2008(E)
For the purposes of defining a change of construction type (M4), the following characteristics are relevant:
⎯ dimensions;
⎯ geometry of the component;
⎯ jointing system.
In the manufacturer's quality plan, the geometry, the dimensions and the dimensional tolerances shall be
specified at least in accordance with and in addition to the requirements given in the relevant part(s) of
ISO 21003.
If one or more of these characteristics exceeds the defined specifications, the relevant characteristics given in
Table 5 to Table 8, as applicable, shall be retested. If third-party certification is involved, retesting shall be
agreed between the certification body and the manufacturer.
Table 5 — Characteristics of M-pipes that require type testing (TT)
Reference to
a
Conditions requiring test
part and clause
Characteristic Sampling procedure
or subclause of
ISO 21003:2008
I M1 M2 M3 M4 M5 E
Influence on water
intended for human Part 1, 6.2 + + + − + + − In accordance with national regulations
consumption
Appearance Part 2, 6.1 + + + + + + + One test piece per d and pressure group
n
One test piece with the smallest wall
Opacity Part 2, 6.2 + + + − + + −
thickness produced
Dimensions Part 2, 8.2 + + + + + + + One test piece per d and pressure group
n
Long-term strength of
b
Part 2, 9.1 + + − + + + + One test per size group, see ISO 17456
M-pipes
Thermal durability of One test piece per similar construction
c
Part 2, 10.2.1 + + − − + − −
M-pipes, inner layer type
Thermal durability of One test piece per similar construction
Part 2, 10.2.2 + + + − + − −
M-pipes, outer layer type
Part 2, One test piece per similar construction
Strength of weld line + − − + + − −
Clause 11 type
One test piece per similar construction
d
Delamination of M-pipes Part 2, 12.2 + + − + + + −
type
Part 2, One test piece per similar construction
e
Oxy
...
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