FprEN 17152-1

• Abstract:

  This document gives the definitions and specifies the minimum requirements for injection moulded, extruded and thermoformed thermoplastics boxes, including integral components, used in underground systems for infiltration, attenuation and storage of surface water (e.g. storm water) and manufactured from polypropylene (PP) or unplasticized polyvinylchloride (PVC-U).; NOTE Non load bearing component(s) of boxes can be manufactured by various methods e.g. extrusion, injection moulding, rotational moulding, thermoforming and low-pressure injection moulding.; Product properties are determined by a combination of material specifications, design and manufacturing process.; Boxes are intended for use in landscape, pedestrian or vehicular traffic areas.; Boxes can either be factory assembled, or site assembled from different components.; Boxes are intended to be used as elements in a modular system where the manufacturer states in the documentation how the boxes are assembled to create a complete infiltration, attenuation or storage system.

• Status: Not Published
• Publication Date: 03-Feb-2027
• ICS: 23.040.01 - Pipeline components and pipelines in general
• Technical Committee: CEN/TC 155 - Plastics piping systems and ducting systems
• Drafting Committee: CEN/TC 155/WG 26 - Storm Water Management
• Current Stage: 5020 - Submission to Vote - Formal Approval
• Start Date: 15-Oct-2026
• Due Date: 15-Sep-2027
• Completion Date: 15-Oct-2026
• Ref Project: kSIST FprEN 17152-1:2026 - Plastics piping systems for non-pressure underground conveyance and storage of surface water - Boxes used for infiltration, attenuation and storage systems - Part 1: Specifications for boxes made of PP and PVC-U

• Revises: EN 17152-1:2019 - Plastics piping systems for non-pressure underground conveyance and storage of non-potable water - Boxes used for infiltration, attenuation and storage systems - Part 1: Specifications for storm water boxes made of PP and PVC-U
• Effective Date: 08-Oct-2025

FprEN 17152-1 is a CEN draft European Standard for plastics boxes used in underground systems that infiltrate, attenuate or store surface water. It specifies minimum requirements and test methods for thermoplastic boxes made from polypropylene (PP) or unplasticized polyvinylchloride (PVC-U), including integral components, so manufacturers, test laboratories and system designers can work to the same technical basis.

What does FprEN 17152-1 specify?

FprEN 17152-1 covers cuboid thermoplastic boxes for buried surface-water management systems and sets the definitions, minimum requirements, marking and supporting test methods. It is written for products used in landscape, pedestrian and vehicular traffic areas, and for boxes that are factory assembled or assembled on site as part of a modular system.

Annex	What it covers
Annex A	Material characteristics for PP and PVC-U boxes and integral components, plus the agreed specification between manufacturer and material supplier
Annex B	Test method for checking sensitivity to non-rigid loading

The document is organized into scope, normative references, terms and definitions, symbols and abbreviations, material, general characteristics, geometrical characteristics, mechanical characteristics, physical characteristics, marking and additional documentation, followed by two normative annexes.

What are the key requirements of FprEN 17152-1?

FprEN 17152-1 ties product performance to three things at once: the material, the design and the manufacturing process. In practice, this means a box is not judged only by its polymer name, but by how the box is made, what it contains, and how it performs in compression and durability tests.

Material basis and supplier agreement

Clause 5 limits the product materials to PP or PVC-U, with permitted additives and mineral modifiers as needed for manufacture or performance. For PP, the document also allows virgin material, reworked material, recyclate or blends, and it requires a declared PP content in the final compound.

The material must have an agreed specification between the supplier and the box manufacturer. That matters because the producer must control the resin recipe and document what is being bought, processed and tested.

General, geometrical and storage characteristics

Clause 6 requires the visible surfaces to be smooth, clean and free from defects that could affect conformity, with sharp external edges avoided. Clause 7 then links the product to declared dimensions, measured weight and declared porosity.

For a buyer or designer, this means the manufacturer must state the functional size of the box, its mass and its porosity, so the module can be checked against the intended storage volume and installation layout.

Mechanical performance

Clause 8 is the main performance clause. It covers short-term compression strength in the X, Y and Z directions, optional lateral deflection and lateral compliance, sensitivity to non-rigid loading, long-term compression strength and optional creep behaviour.

This matters because these boxes work underground under soil and surface loads. The standard requires the product to be verified in the directions that matter for installation, not just in one laboratory setup.

Injection-moulded box quality

Clause 9 adds a physical check for injection-moulded boxes. It focuses on heat-related effects around injection points and on the condition of fusion lines.

In practice, this is a quality control check for moulding defects that could weaken the box before it goes into the ground.

Marking and documentation

Clause 10 requires durable marking and additional documentation that stays legible after handling, storage and installation. The manufacturer must state the product identification, material, intended use, colour, declared structural strengths, porosity, dimensions, reference weight, assembly information and the effect of multilayer design on declared strength.

That gives purchasers and installers traceability and tells them how the separate boxes are meant to be combined into a complete system.

Annex A and Annex B

Annex A supports type testing and supplier control for PP and PVC-U materials. Annex B gives the method for checking whether the box behaves differently when rigid plates are replaced by plates with an intermediate rubber layer.

For practice, Annex A supports material approval, while Annex B checks whether the box is sensitive to a less ideal loading condition than the standard compression test.

What terms does FprEN 17152-1 define?

• Box - A thermoplastic cuboid-shaped element, with or without sidewalls, used to create a modular system.
• Integral component - A load-bearing component that contributes to the overall strength of the box.
• Modular system - A system made of repeating boxes.
• Infiltration system - A modular system designed to store surface water temporarily so it soaks into the surrounding ground.
• Attenuation system - A modular system designed to reduce peak flow by providing temporary underground storage.
• Storage system - A modular system designed to provide underground storage for surface water.
• Porosity - The ratio between the water-storage volume available in the box and the total envelope cuboid volume.
• Declared value - A value stated by the manufacturer that cannot be higher than the reference value.

Who uses FprEN 17152-1?

FprEN 17152-1 is used by manufacturers of PP and PVC-U drainage and storage boxes, material suppliers, test laboratories, design engineers and conformity assessment teams. It is also useful for buyers, specifiers and quality managers who need to compare products, verify declared performance and check that a modular stormwater system has been documented in a traceable way.

What changed in FprEN 17152-1 from the previous edition?

FprEN 17152-1 supersedes EN 17152-1:2019+AC:2020. The foreword lists these main changes:

• Table A.1 adds the minimum number of test specimens.
• Table 2 adds new optional tests.
• Clause 3 adds new definitions, including reference value and declared value.
• The document now refers to the improved prEN 17151-1.
• Subclause 10.2 gives more detail.
• Editorial improvements are included throughout the document.

Which standards are used with FprEN 17152-1?

• EN 17150:2019 - short-term compression strength test for boxes.
• prEN 17151-1:2025 - long-term compression strength test for boxes and the basis for reference values.
• prEN 17151-2:2025 - creep behaviour test and extrapolation.
• CEN/TS 17152-4:2025 - guidance for structural design of modular systems and related optional checks.
• EN ISO 472:2013 and EN ISO 1043-1:2011 - plastics vocabulary and symbols/abbreviations.
• EN ISO 527-1/-2/-3, EN ISO 899-1/-2, EN ISO 1133-1, EN ISO 1167-1/-2, EN ISO 1183-1, EN ISO 306, EN ISO 3451-1/-5, EN ISO 11357-3/-6, EN ISO 11358-1 and EN ISO 13229 - material characterization for tensile properties, creep, melt flow, internal pressure, density, Vicat softening temperature, ash, DSC, OIT, thermogravimetry and PVC-U K-value.
• EN ISO 580:2005 and EN ISO 179-1 - heating effects on injection-moulded parts and impact properties.
• The EN 17152 series also includes Part 3 on assessment of conformity and Part 4 on structural design guidance.

What does the FprEN 17152-1 document contain?

The document contains the requirement tables that link product approval to material checks, compression tests, durability checks and marking. Table 1 covers material characteristics, Table 2 covers mechanical characteristics, Table 3 covers physical characteristics for injection-moulded boxes, and Table 4 gives the minimum marking content.

It also includes Figure 1 for identifying the X, Y and Z test directions and the porosity calculation in Clause 7. Annex A provides the material-characteristics framework for PP and PVC-U, while Annex B gives the rubber-sheet test setup used to check sensitivity to non-rigid loading.

SLOVENSKI STANDARD
oSIST prEN 17152-1:2026
01-marec-2026
Cevni sistemi iz polimernih materialov, ki delujejo po težnostnem principu in so
položeni v zemljo, za transport in shranjevanje nepitne vode - Zaboji za sisteme
infiltriranja, reduciranja in hrambe - 1. del: Specifikacije za zaboje, iz PP in PVC-U
Plastics piping systems for non-pressure underground conveyance and storage of
surface water - Boxes used for infiltration, attenuation and storage systems - Part 1:
Specifications for boxes made of PP and PVC-U
Kunststoff-Rohrleitungssysteme für die drucklose unterirdische Entwässerung für Nicht-
Trinkwasser - Versickerungsblöcke zur Verwendung in Infiltrations-, Zwischenspeicher-
und Speichersystemen - Teil 1: Festlegungen für Regenwasserabfluss-
Versickerungsblöcke aus PP und PVC-U
Systèmes de canalisations en plastique pour le transport et le stockage souterrains sans
pression des eaux de surface - Structures alvéolaires ultra-légères pour les systèmes
d’infiltration, de rétention et de stockage - Partie 1 : Spécifications relatives aux
structures alvéolaires ultra-légères fabriquées à partir de PP et de PVC-U
Ta slovenski standard je istoveten z: prEN 17152-1
ICS:
23.040.03 Cevovodi za zunanje sisteme Pipeline and its parts for
transporta vode in njihovi deli external water conveyance
systems
oSIST prEN 17152-1:2026 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 17152-1:2026
oSIST prEN 17152-1:2026
DRAFT
EUROPEAN STANDARD
prEN 17152-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2025
ICS 23.040.01 Will supersede EN 17152-1:2019
English Version
Plastics piping systems for non-pressure underground
conveyance and storage of surface water - Boxes used for
infiltration, attenuation and storage systems - Part 1:
Specifications for boxes made of PP and PVC-U
Systèmes de canalisations en plastique pour le Kunststoff-Rohrleitungssysteme für die drucklose
transport et le stockage souterrains sans pression des unterirdische Entwässerung für Nicht-Trinkwasser -
eaux de surface - Structures alvéolaires ultra-légères Versickerungsblöcke zur Verwendung in Infiltrations-,
pour les systèmes d'infiltration, de rétention et de Zwischenspeicher- und Speichersystemen - Teil 1:
stockage - Partie 1 : Spécifications relatives aux Festlegungen für Regenwasserabfluss-
structures alvéolaires ultra-légères fabriquées à partir Versickerungsblöcke aus PP und PVC-U
de PP et de PVC-U
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 155.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

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

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. prEN 17152-1:2025 E
worldwide for CEN national Members.

oSIST prEN 17152-1:2026
prEN 17152-1:2025 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Symbols and abbreviations . 8
5 Material . 9
5.1 General . 9
5.2 Polypropylene (PP) . 9
5.3 Unplasticized polyvinylchloride (PVC-U) . 9
5.4 Box and integral components material characteristics . 9
6 General characteristics . 10
6.1 Appearance . 10
6.2 Colour . 11
7 Geometrical characteristics . 11
7.1 Dimensions . 11
7.2 Weight . 11
7.3 Porosity . 11
8 Mechanical characteristics of boxes and integral components . 11
9 Physical characteristics of injection moulded boxes . 13
10 Marking and additional documentation . 14
10.1 General . 14
10.2 Additional documentation . 14
10.3 Minimum required marking of infiltration, storage and attenuation boxes . 15
Annex A (normative) Characteristics of materials used in boxes and integral components for
PP and PVC-U . 16
A.1 Material characteristics . 16
A.2 Agreed specification between the manufacturer and the supplier of PP and PVC-U
materials . 17
Annex B (normative) Test method to check the sensitivity to non-rigid loading . 19
B.1 General . 19
B.2 Apparatus and test setup . 19
Bibliography . 21

oSIST prEN 17152-1:2026
prEN 17152-1:2025 (E)
European foreword
This document (prEN 17152-1:2025) 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 CEN Enquiry.
This document supersedes EN 17152-1:2019+AC:2020.
The main changes with respect to EN 17152-1:2019+AC:2020 are listed below:
— Table A.1 added minimum number of test specimen;
— Table 2 new optional tests added;
— Clause 3 new definitions added (e.g. reference value and declared value);
— reference to new improved prEN 17151-1;
— subclause 10.2 improved with more information;
— editorial improvements through the document.
This standard is supported by separate standards on test methods to which normative references are
made.
EN 17152-series consists of the following parts under the general title Plastics piping systems for non-
pressure underground conveyance and storage of surface water - Boxes used for infiltration, attenuation
and storage systems:
— Part 1: Specifications for boxes made of PP and PVC-U [this document];
— Part 3: Assessment of conformity (CEN/TS);
— Part 4: Guidance for structural design of modular systems (CEN/TS).
Recommended practices for installation are described in CEN/TR 17179 [1].
These products are always used in a modular system consisting of multiple boxes.
National standards for pipes and fittings for the transport of surface water are not considered to be
conflicting with this standard and can thus be allowed to coexist.

oSIST prEN 17152-1:2026
prEN 17152-1:2025 (E)
Introduction
The products covered by this document are part of surface water management system.
This document is intended to reflect the current state of knowledge of determining and predicting the
long-term lifetime of product groups mentioned in the scope while maintaining reasonable testing times
for producers and developers of these systems.

oSIST prEN 17152-1:2026
prEN 17152-1:2025 (E)
1 Scope
This document gives the definitions and specifies the minimum requirements for injection moulded,
extruded and thermoformed thermoplastics cuboid shaped boxes, including integral components, used
in underground systems for infiltration, attenuation and storage of surface water (e.g. storm water) and
manufactured from polypropylene (PP) or unplasticized polyvinylchloride (PVC-U).
Product properties are determined by a combination of material specifications, design and
manufacturing process.
These boxes are intended for buried underground use, e.g. in landscape, pedestrian or vehicular traffic
areas.
A box can either be factory assembled, or site assembled from different components.
These boxes are intended to be used as elements in a modular system where the manufacturer states in
the documentation how the components are assembled to create a complete infiltration, attenuation or
storage system.
NOTE Non load bearing component(s) can be manufactured by various methods e.g. extrusion, injection
moulding, rotational moulding, thermoforming and low-pressure injection moulding.
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 17150:2019, Plastics piping systems for non-pressure underground conveyance and storage of non-
potable water — Test method for determination of short-term compression strength of boxes
prEN 17151-1:2025, Plastics piping systems for non-pressure underground conveyance and storage of
surface water — Part 1: Test method for determination of long-term compression strength of boxes
prEN 17151-2:2025, Plastics piping systems for non-pressure underground conveyance and storage of
surface water — Part 2: Test method for determination of creep behaviour of boxes
CEN/TS 17152-4:2025, Plastics piping systems for non-pressure underground conveyance and storage of
non-potable water — Boxes used for infiltration, attenuation and storage systems — Part 4: Guidance for
structural design of modular systems
EN ISO 179-1, Plastics — Determination of Charpy impact properties — Part 1: Non-instrumented impact
test (ISO 179-1)
EN ISO 306, Plastics — Thermoplastic materials — Determination of Vicat softening temperature (VST)
(ISO 306)
EN ISO 472:2013, Plastics — Vocabulary (ISO 472/2013)
EN ISO 527-1, Plastics — Determination of tensile properties — Part 1: General principles (ISO 527-1)
EN ISO 527-2, Plastics — Determination of tensile properties — Part 2: Test conditions for moulding and
extrusion plastics (ISO 527-2)
EN ISO 527-3, Plastics — Determination of tensile properties — Part 3: Test conditions for films and sheets
(ISO 527-3)
oSIST prEN 17152-1:2026
prEN 17152-1:2025 (E)
EN ISO 580:2005, Plastics piping and ducting systems — Injection-moulded thermoplastics fittings -
Methods for visually assessing the effects of heating (ISO 580:2005)
EN ISO 899-1, Plastics — Determination of creep behaviour — Part 1: Tensile creep (ISO 899-1)
EN ISO 899-2, Plastics — Determination of creep behaviour — Part 2: Flexural creep by three-point loading
(ISO 899-2)
EN ISO 1043-1:2011, Plastics — Symbols and abbreviated terms — Part 1: Basic polymers and their
special characteristics (ISO 1043-1:2011)
EN ISO 1133-1, Plastics — Determination of the melt mass-flow rate (MFR) and melt volume-flow rate
(MVR) of thermoplastics — Part 1: Standard method (ISO 1133-1)
EN ISO 1167-1, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination
of the resistance to internal pressure — Part 1: General method (ISO 1167-1)
EN ISO 1167-2, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination
of the resistance to internal pressure — Part 2: Preparation of pipe test pieces (ISO 1167-2)
EN ISO 1183-1, Plastics — Methods for determining the density of non-cellular plastics — Part 1: Immersion
method, liquid pyknometer method and titration method (ISO 1183-1)
EN ISO 3126, Plastics piping systems — Plastics components — Determination of dimensions (ISO 3126)
EN ISO 3451-1, Plastics — Determination of ash — Part 1: General methods (ISO 3451-1)
EN ISO 3451-5, Plastics — Determination of ash — Part 5: Poly(vinyl chloride) (ISO 3451-5)
EN ISO 11357-3, Plastics — Differential scanning calorimetry (DSC) — Part 3: Determination of
temperature and enthalpy of melting and crystallization (ISO 11357-3)
EN ISO 11357-6, Plastics — Differential scanning calorimetry (DSC) — Part 6: Determination of oxidation
induction time (isothermal OIT) and oxidation induction temperature (dynamic OIT) (ISO 11357-6)
EN ISO 11358-1, Plastics — Thermogravimetry (TG) of polymers — Part 1: General principles
(ISO 11358-1)
EN ISO 13229, Thermoplastics piping systems for non-pressure applications — Unplasticized poly(vinyl
chloride) (PVC-U) pipes and fittings — Determination of the viscosity number and K-value (ISO 13229)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 472:2013, EN ISO 1043-
1:2011 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp

As impacted by EN ISO 1043-1:2011/A1:2016.
oSIST prEN 17152-1:2026
prEN 17152-1:2025 (E)
3.1
box
thermoplastic cuboid shaped element, with or without sidewalls, used to create a modular system
3.2
integral component
load bearing component contributing to the overall strength of the box
3.3
modular system
system made of repeating boxes
3.4
attenuation system
modular system designed to reduce the peak flow from a given site by providing a temporary
underground surface water storage facility
3.5
infiltration system
modular system designed to provide a temporary underground storage facility from which surface water
soaks into the surrounding ground
3.6
storage system
modular system designed to provide an underground storage facility for surface water
3.7
porosity
total available volume for water storage divided by the total envelope cuboid volume for a box
3.8
long-term compression strength
95 % lower confidence limit (LCL) of the applied stress for which the sample would survive 50 years
without creep rupture, in kN/m
3.9
material
material specified for a particular component in a box
3.10
virgin material
plastics material in the form of pellets, granules, powder, floc, etc. that has not been subjected to use or
processing other than that required for its initial manufacture
Note 1 to entry: Does not contain any reworked plastics material and/or plastics recyclate.
Note 2 to entry: Sometimes also referred to as “primary material” or “primary plastics feedstock”.
Note 3 to entry: It is understood that the addition of additives such as stabilizers and pigments is still resulting
into a virgin (plastics) material.
[SOURCE: EN 14541-1:2022]
...