SIST-TS CEN/TS 14758-2:2025

SLOVENSKI STANDARD
01-julij-2025
Nadomešča:
SIST-TS CEN/TS 14758-2:2016
Cevni sistemi iz polimernih materialov za odvodnjavanje in kanalizacijo, ki delujejo
po težnostnem principu - Polipropilen z mineralnimi modifikatorji (PP-MD) - 2. del:
Ugotavljanje skladnosti
Plastics piping systems for non-pressure underground drainage and sewerage -
Polypropylene with mineral modifiers (PP-MD) - Part 2: Assessment of conformity
Kunststoff-Rohrleitungssysteme für erdverlegte drucklose Abwasserkanäle und -
leitungen - Polypropylen mit mineralischen Additiven (PP-MD) - Teil 2: Beurteilung der
Konformität
Systèmes de canalisations en plastique pour les branchements et les collecteurs
d'assainissement enterrés sans pression - Polypropylène avec modificateurs minéraux
(PP-MD) - Partie 2 : Guide pour l'évaluation de la conformité
Ta slovenski standard je istoveten z: CEN/TS 14758-2:2025
ICS:
23.040.05 Cevovodi za zunanje Pipeline and its parts for
sisteme za odpadno vodo in external sewage systems
njihovi deli
93.030 Zunanji sistemi za odpadno External sewage systems
vodo
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

CEN/TS 14758-2
TECHNICAL SPECIFICATION
SPÉCIFICATION TECHNIQUE
May 2025
TECHNISCHE SPEZIFIKATION
ICS 23.040.05; 93.030 Supersedes CEN/TS 14758-2:2016
English Version
Plastics piping systems for non-pressure underground
drainage and sewerage - Polypropylene with mineral
modifiers (PP-MD) - Part 2: Assessment of conformity
Systèmes de canalisations en plastique pour les Kunststoff-Rohrleitungssysteme für erdverlegte
branchements et les collecteurs d'assainissement drucklose Abwasserkanäle und -leitungen -
enterrés sans pression - Polypropylène avec Polypropylen mit mineralischen Additiven (PP-MD) -
modificateurs minéraux (PP-MD) - Partie 2 : Évaluation Teil 2: Beurteilung der Konformität
de la conformité
This Technical Specification (CEN/TS) was approved by CEN on 14 April 2025 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 14758-2:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Abbreviated terms . 9
5 General. 10
6 Testing . 10
6.1 Group . 10
6.2 Type testing . 10
6.2.1 General. 10
6.2.2 Material specification . 14
6.3 Batch release testing . 15
6.4 Process verification testing . 17
6.5 Audit testing . 19
6.6 Test records . 20
Annex A (informative) Basic test matrix . 21
Bibliography . 23

European foreword
This document (CEN/TS 14758-2:2025) 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 shall not be held responsible for identifying any or all such patent rights.
This document supersedes CEN/TS 14758-2:2016.
EN 14758 consists of the following parts, under the general title Plastics piping systems for non-pressure
underground drainage and sewerage — Polypropylene with mineral modifiers (PP-MD):
— Part 1: Specifications for pipes, fittings and the system
— Part 2: Assessment of conformity (the present technical specification)
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN/CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to announce this Technical Specification: 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, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Introduction
This document is based on the template prepared in CEN/TC 155/WG 21, Edition 6 (see document
CEN/TC 155/WG 21 N1124).
This document details the applicable characteristics to be assessed for type testing (TT), batch release
test (BRT), process verification test (PVT), and audit test (AT), as well as the frequency and sampling for
testing.
The concept of testing and organization of those tests used for the assessment of conformity (AoC) is
shown, without or with certification, in Figures 1 and 2.

Figure 1 — Typical scheme for the AoC by a manufacturer, without certification
Figure 2 — Typical scheme for the AoC by a manufacturer, including certification
1 Scope
This document gives guidance and requirements for the assessment of conformity of
compounds/formulations, products, joints and assemblies in accordance with the applicable part(s) of
EN 14758 intended to be included in the manufacturer’s quality plan as part of the quality management
system and for the establishment of certification procedures.
NOTE 1 A basic test matrix provides an overview of the testing scheme in Annex A, Table A.1.
NOTE 2 If certification is involved, the certification body operating according to EN ISO/IEC 17065 [1] and
EN ISO/IEC 17020 [2] is considered to be competent.
In conjunction with EN 14758-1, this document is applicable to solid wall pipes and fittings with or
without internal and/or external skin and the system made of mineral modified polypropylene materials
(PP-MD) intended to be used for non-pressure underground drainage and sewerage:
— outside the building structure (application area code “U”); and
— for both buried in ground within the building structure and outside the building structure
(application area code “UD”).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 14758-1:2023, Plastics piping systems for non-pressure underground drainage and sewerage -
Polypropylene with mineral modifiers (PP-MD) - 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 14758-1:2023 and the following
apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/
3.1
certification body
third-party conformity assessment body operating certification schemes
Note 1 to entry: A certification body can be non-governmental or governmental (with or without regulatory
authority).
3.2
laboratory
body that performs one or more of the following activities:
— testing;
— calibration;
— sampling, associated with subsequent testing or calibration
Note 1 to entry: In the context of this document, the materials and products can be subjected to type testing, batch
release testing, process verification testing and audit testing, as applicable.
3.3
quality management system
part of a management system with regard to quality
Note 1 to entry: Requirements for quality management systems are given in EN ISO 9001 [3].
[SOURCE: EN ISO 9000:2015 [4], definition 3.5.4]
3.4
quality plan
document setting out the specific quality practices, responsibilities, resources and sequence of activities
relevant to a particular product or range of products
3.5
type test
TT
test performed to prove that the material, product, joint or assembly is capable of conforming to the
requirement(s) given in the relevant standard
3.6
batch release test
BRT
test performed on a batch of material, products, joints or assemblies which has to be satisfactorily
completed before the batch can be released
Note 1 to entry: A batch release test can be performed by the manufacturer or outsourced on behalf of the
manufacturer.
3.7
process verification test
PVT
test performed on material, product, joint or assembly 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: Process verification tests can be performed by the manufacturer or outsourced on behalf of the
manufacturer.
Note 2 to entry: Process verification tests are regularly performed to demonstrate that the product remains
compliant with the type test results.
3.8
audit test
AT
test performed on behalf of a certification body
Note 1 to entry: Audit tests are generally required 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.
3.9
indirect test
batch release test performed which differs from that specified test for that particular characteristic,
having previously verified its correlation with the specified test
Note 1 to entry: Indirect tests can be performed by the manufacturer or outsourced on behalf of the manufacturer.
3.10
witness test
type test or audit test which is performed in the presence of a representative of the certification body
3.11
material
generic term for compositions of compounds/formulations grouped by families, expressed by generic
names
Note 1 to entry: Examples of generic names are PVC-U, polypropylene and EPDM.
3.12
substance
polymer, additive, element or chemical compound as used in compounds/formulations
3.13
compound
formulation
homogenous mixture of substances used for the manufacture of the product as defined in the referring
product standard
Note 1 to entry: In general, the term “compound” is used for polyolefins and the term “formulation” for PVC.
Note 2 to entry: The term “composition” is often used instead of compound for metals and when dealing with water
and food contact regulations.
3.14
material batch
quantity of a given homogeneous compound/formulation manufactured under uniform conditions
defined and identified by the compound/formulation manufacturer
3.15
product
item as defined in the scope of the standard, e.g. pipe, fitting
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
3.17
sample
one or more components or products drawn from the same production batch, selected at random without
regard to their quality
3.18
group
defined collection of similar products from which samples are selected for testing purposes
3.19
component
item manufactured out of a specific composition compound/formulation, supplied as part of another
product or as a spare part for that product
Note 1 to entry: Depending on the context, components may be considered as products and be individually
approved (e.g. o-ring, gasket) or they are tested as integral part of a finished product (e.g. in a valve).
3.20
joint
connection between two products
3.21
assembled product
final product comprising two or more components
3.22
fabricated fitting
fitting produced by welding, thermoforming or adhesive jointing from pipes and/or from injection-
moulded fittings
3.23
assembly
set of components that forms a product or a test piece
3.24
cavity
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 Freigabeprüfung einer Charge
fabrication
PVT process verification essai de vérification du procédé de Prozessüberprüfung
test fabrication
TT type test essai de type Typprüfung
5 General
Materials, products and fitness for purpose shall conform to the requirements given in EN 14758-1.
Materials and products shall be produced by the manufacturer under a quality management system
which includes a quality plan.
6 Testing
6.1 Group
For the purposes of this document, the groups specified below apply.
Four size groups are defined for pipes and fittings, as given in Table 1.
Table 1 — Size groups
Size group Nominal outside
diameter, d
n
mm
1 d ≤ 200
n
2 200 < d ≤ 500
n
3 500 < d ≤ 1 200
n
4 1 200 < d ≤ 1 600
n
Three groups of fittings each having a similar design are defined, as given in Table 2.
Table 2 — Fitting groups
Fitting group Type of fitting
1 Bends
2 Branches
3 Other fittings
Push fit fittings and fusion fittings shall be considered separately for each group.
6.2 Type testing
6.2.1 General
Type tests are intended to demonstrate the ability of the product to fulfil the intended use and
characteristics detailed in the referring product standard.
Type tests shall demonstrate that the products conform to all requirements for the characteristics given
in Table 3 to Table 5, as applicable.
Type tests shall be performed as described in Table 3 to Table 5 whenever there is:
a) a new system (N);
b) a change in design (D);
c) a change in material (M) (see 6.2.2);
d) a change in production processing method (P), other than routine in-process adjustments;
e) an extension of the product range (E).
When a change of production site occurs, the manufacturer shall determine which type tests need to be
revalidated.
Unless any of the conditions a) to e) above occurs, the type test results remain valid.
A type test may be performed by the manufacturer or outsourced on behalf of the manufacturer.
Table 3 — Characteristics of pipes that require type testing
Conditions
Reference to
Sampling procedure
a
requiring test
clause or
Characteristic
subclause of
Certification
c
N D M E Manufacturer
EN 14758-1:2023
b
body
PP-MD and PP One One
5.1, 5.2 + - + -
compounds calculation calculation
Utilization of
reworked material 5.3 + - + - Once Once
and recyclate
Melt mass-flow rate
5.4 + - + - Once Once
(MFR-value)
Dispersion of
mineral modifier to 5.6.3 + + + - Once Once
be added
Once with one Once with
Resistance to
5.7 + - + - optional one optional
internal pressure
dimension dimension
Thermal stability 5.8 + - + - Once Once
Once per size
Appearance 6.1 + - - + Once per size
group
Once per size
Colour 6.2 + - - + Once per size
group
Geometrical Once per size
7.2 and 7.5 + + - + Once per size
characteristics group
Once per size
Impact resistance
+ - - + Once per size
group
(round-the-clock 8.1.1
method)
- - + - Once Once
Once per SN Once per SN
Ring stiffness 8.1.1 + - + +
class class
Once per SN Once per SN
Ring flexibility 8.1.1 and 8.1.2 + - + +
class class
Once per size
+ - - + Once per size
Impact resistance
group
8.1.3
d
(staircase method)
- - + - Once Once
Longitudinal Once per size
9.1 + - - + Once per size
reversion group
Conditions
...