SIST EN 206-2:2026

Concrete - Specification, performance, production and conformity - Part 2: Conformity assessment and certification

(1) This document specifies the scheme for the conformity assessment and assessment criteria for concrete.
(2) The document provides technical rules for assessment of the performance of the concrete and actions to be followed in the event of non-conformity of the product or negative assessment.
(3) This document gives provisions and guidance for certification of factory production control and of the concrete.

Beton - Festlegung, Eigenschaften, Herstellung und Konformität - Teil 2: Konformitätsbewertung und Zertifizierung

(1) Dieses Dokument legt das Programm für die Konformitätsbewertung sowie Bewertungskriterien für Beton fest.
(2) Das Dokument stellt technische Regeln für die Bewertung der Leistungsfähigkeit des Betons sowie zu befolgende Maßnahmen bereit, die im Falle einer Nichtkonformität des Produkts oder einer negativen Bewertung zu ergreifen sind.
(3) Dieses Dokument enthält Regeln und Anleitungen für die Zertifizierung der werkseigenen Produktionskontrolle und des Betons.

Béton - Spécification, performances, production et conformité - Partie 2 : Évaluation de la conformité et certification

(1) Le présent document spécifie le programme d’évaluation de la conformité et les critères d’évaluation du béton.
(2) Ce document fournit des règles techniques pour les essais d’échantillons et l’évaluation des performances du béton. Il fournit également des règles pour les actions à mener en cas de non conformité du produit ou d’évaluation négative.
(3) Dans le présent document, le terme « béton » est utilisé pour désigner un béton tel que défini dans le prEN 206 1. Un tel béton est produit dans une unité de production donnée et appartient à un type et à une classe de résistance particuliers, définis et spécifiés dans le prEN 206 1.

Beton - Specifikacija, lastnosti, proizvodnja in skladnost - 2. del: Ugotavljanje skladnosti in certificiranje

(1) Ta dokument določa shemo za ugotavljanje skladnosti in merila za ocenjevanje betona.
(2) Dokument zagotavlja tehnična pravila za ocenjevanje zmogljivosti betona in ukrepe, ki jih je treba sprejeti v primeru neskladnosti izdelka ali negativne ocene.
(3) Ta dokument podaja določbe in smernice za certificiranje kontrole proizvodnje v tovarni in betona.

General Information

• Status: Published
• Public Enquiry End Date: 20-Oct-2024
• Publication Date: 09-Apr-2026
• ICS: 03.120.20 - Product and company certification. Conformity assessment
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: BBB - Concrete, reinforced concrete and prestressed concrete
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 17-Mar-2026
• Due Date: 22-May-2026
• Completion Date: 10-Apr-2026
• Ref Project: EN 206-2:2026 - Concrete - Specification, performance, production and conformity - Part 2: Conformity assessment and certification

Relations

• Referred By: SIST EN 15050:2007+A1:2012 - Precast concrete products - Bridge elements
• Effective Date: 11-Mar-2026
• Referred By: SIST EN 1881:2007 - Products and systems for the protection and repair of concrete structures - Test methods - Testing of anchoring products by the pull-out method
• Effective Date: 11-Mar-2026
• Referred By: SIST EN 16502:2014 - Test method for the determination of the degree of soil acidity according to Baumann-Gully
• Effective Date: 11-Mar-2026
• Referred By: SIST EN 1504-2:2004 - Products and systems for the protection and repair of concrete structures - Definitions, requirements, quality control and evaluation of conformity - Part 2: Surface protection systems for concrete
• Effective Date: 11-Mar-2026
• Referred By: SIST EN 13877-1:2013 - Concrete pavements - Part 1: Materials
• Effective Date: 11-Mar-2026
• Referred By: SIST EN 1317-5:2007+A2:2012 - Road restraint systems - Part 5: Product requirements and evaluation of conformity for vehicle restraint systems
• Effective Date: 11-Mar-2026
• Referred By: SIST EN 16432-3:2022 - Railway applications - Ballastless track systems - Part 3: Acceptance
• Effective Date: 11-Mar-2026
• Referred By: SIST EN 13263-2:2005+A1:2009 - Silica fume for concrete - Part 2: Conformity evaluation
• Effective Date: 11-Mar-2026
• Referred By: SIST EN 15815:2011 - Polymer modified bituminous thick coatings - Resistance to compression
• Effective Date: 11-Mar-2026
• Referred By: SIST EN 13381-6:2012 - Test methods for determining the contribution to the fire resistance of structural members - Part 6: Applied protection to concrete filled hollow steel columns
• Effective Date: 11-Mar-2026
• Referred By: kSIST FprEN 1992-1-1:2023 - Eurocode 2 - Design of concrete structures - Part 1-1: General rules and rules for buildings, bridges and civil engineering structures
• Effective Date: 11-Mar-2026
• Referred By: SIST EN 13230-2:2009 - Railway applications - Track - Concrete sleepers and bearers - Part 2: Prestressed monoblock sleepers
• Effective Date: 11-Mar-2026
• Referred By: SIST EN 13230-3:2016 - Railway applications - Track - Concrete sleepers and bearers - Part 3: Twin-block reinforced sleepers
• Effective Date: 11-Mar-2026
• Referred By: SIST EN 13230-1:2009 - Railway applications - Track - Concrete sleepers and bearers - Part 1: General requirements
• Effective Date: 11-Mar-2026
• Referred By: SIST EN 12566-3:2005+A2:2013 - Small wastewater treatment systems for up to 50 PT - Part 3: Packaged and/or site assembled domestic wastewater treatment plants
• Effective Date: 11-Mar-2026

Overview

FprEN 206-2 - "Concrete - Specification, performance, production and conformity - Part 2: Conformity assessment and certification" (CEN draft) defines the scheme and rules for assessing and certifying the conformity of concrete with its specification. It is the companion standard to prEN 206‑1 and forms Part 2 of the EN 206 series. The document sets out how to test, evaluate and certify concrete performance, including factory production control (FPC) and required actions when concrete is non‑conforming.

Key topics

• Scope and purpose: Defines the conformity assessment scheme and assessment criteria for concrete produced at a plant, for a given type and strength class.
• Assessment regime: Distinguishes between initial production and continuous production (continuous production typically requires ≥35 test results within a 12‑month period).
• Sampling and testing rules: Specifies how individual specimen results or averages (from multiple specimens per sample) are used; results may be disregarded if the range between specimens exceeds 15% of the mean unless justified.
• Assessment methods: Provides three main options for judging compressive strength conformity:
  • Method A - rules for initial production (groups of consecutive test results).
  • Method B - statistical assessment for continuous production (assessment periods, minimum numbers of results, use of mean and estimated standard deviation).
  • Method C - option to use control charts (e.g., cusum, Shewhart variants) when appropriate; Annex A gives guidance on control chart application.
• Quality metrics: Uses concepts such as AQL, AOQ and AOQL to relate acceptance probabilities to outgoing quality.
• Non‑conformity actions: Technical rules for follow‑up when test results or assessments are negative, including measures at the production site and construction site.
• Certification of FPC: Criteria and example certification scheme for factory production control (initial assessment, continuous surveillance, measures on non‑conformity), with guidance in Annex B.
• National choices: Allows application‑specific provisions “valid in the place of use” and national annexes where necessary.

Applications and users

• Concrete producers and batching plants - to set up and demonstrate compliant factory production control and obtain certification.
• Third‑party certifying bodies and accreditation organizations - to implement assessment schemes in line with EN ISO/IEC 17065.
• Testing laboratories and site quality personnel - for sampling, testing and statistical evaluation of compressive strength and other properties.
• Specifiers, contractors and clients - to interpret conformity declarations, accept deliveries or trigger corrective actions.
• National standards bodies - to implement national choices and annexes.

Related standards

• prEN 206‑1 (Part 1 - performance, requirements, FPC)
• EN 12350‑1 (fresh concrete sampling)
• EN 12390‑7 (hardened concrete density)
• EN ISO/IEC 17065 (product certification bodies)

Keywords: FprEN 206-2, concrete conformity assessment, concrete certification, factory production control, EN 206, concrete specification, control charts.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2026
Beton - Specifikacija, lastnosti, proizvodnja in skladnost - 2. del: Ugotavljanje
skladnosti in certificiranje
Concrete - Specification, performance, production and conformity - Part 2: Conformity
assessment and certification
Beton - Festlegung, Eigenschaften, Herstellung und Konformität - Teil 2:
Konformitätsbewertung und Zertifizierung
Béton - Spécification, performances, production et conformité - Partie 2 : Évaluation de
la conformité et certification
Ta slovenski standard je istoveten z: EN 206-2:2026
ICS:
03.120.20 Certificiranje proizvodov in Product and company
podjetij. Ugotavljanje certification. Conformity
skladnosti assessment
91.100.30 Beton in betonski izdelki Concrete and concrete
products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 206-2
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2026
EUROPÄISCHE NORM
ICS 91.100.30 Supersedes EN 206:2013+A2:2021
English Version
Concrete - Specification, performance, production and
conformity - Part 2: Conformity assessment and
certification
Béton - Spécification, performances, production et Beton - Festlegung, Eigenschaften, Herstellung und
conformité - Partie 2 : Évaluation de la conformité et Konformität - Teil 2: Konformitätsbewertung und
certification Zertifizierung
This European Standard was approved by CEN on 19 January 2026.

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. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2026 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 206-2:2026 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Symbols and abbreviations . 7
5 Conformity assessment and assessment criteria . 7
5.1 General. 7
5.2 Conformity assessment for designed concrete . 8
5.2.1 Conformity assessment for compressive strength . 8
5.2.2 Conformity assessment for tensile strength . 10
5.2.3 Conformity assessment for exposure resistance classes . 10
5.2.4 Conformity assessment for properties other than strength and exposure resistance classes
............................................................................................................................................................................. 10
5.3 Conformity assessment of prescribed concrete . 12
5.4 Actions in the case of non-conformity of the product or in case of negative assessments. 13
6 Certification . 13
Annex A (informative) Rules of application of control charts . 14
Annex B (informative) Example of a certification scheme for factory production control . 16
Bibliography . 19

European foreword
This document (EN 206-2:2026) has been prepared by Technical Committee CEN/TC 104 “Concrete and
related products”, the secretariat of which is held by SN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by September 2026, and conflicting national standards shall
be withdrawn at the latest by September 2026.
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, together with EN 206-1:2026 and EN 206-3:2026, supersedes EN 206:2013+A2:2021.
The EN 206 series under the general title Concrete — Specification, performance, production and
conformity comprises the following parts:
— Part 1: Performance, requirements, factory production control and assessment criteria for individual
values;
— Part 2: Conformity assessment and certification;
— Part 3: Additional requirements for specification and conformity of concrete for special geotechnical
works
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 implement this European Standard: 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
0.1 General
This document defines provisions for conformity assessment of concrete.
EN 206-1 gives the necessary information allowing the evaluation of conformity of concrete. This
document, i.e. EN 206-2:2026, contains conformity assessment requirements for concrete.
0.2 Provisions valid in the place of use for EN 206-2
(1) This document will be applied under different legal frameworks and different regional safety
requirements. Where general solutions were not possible, the relevant clauses contain permission for the
application of provisions valid in the place of use of the concrete.
(2) National choice is allowed in this document where explicitly stated that provisions valid in the place
of use may be given.
(3) The national standard implementing EN 206-2 can have a National Annex or complementary standard
containing all national choices to be used in the relevant country.
(4) National choice is allowed in EN 206-2 in the following:
5.1 (4) 5.2.1.3 (5) 5.2.4.1 (1) 6 (1)
NOTE The National Annex can contain, directly or by reference, non-contradictory complementary information
for ease of implementation, provided it does not alter any provisions of this document.
1 Scope
(1) This document specifies the scheme for the conformity assessment and assessment criteria for
concrete.
(2) The document provides technical rules for assessment of the performance of the concrete and actions
to be followed in the event of non-conformity of the product or negative assessment.
(3) This document gives provisions and guidance for certification of factory production control and of the
concrete.
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 206-1:2026, Concrete — Specification, performance, production and conformity — Part 1:
Performance, requirements, factory production control and assessment criteria for individual values
EN 12350-1, Testing fresh concrete — Part 1: Sampling and common apparatus
EN 12390-7, Testing hardened concrete — Part 7: Density of hardened concrete
3 Terms and definitions
For the purposes of this document, the terms and definitions of EN 206-1 and the following apply.
ISO and IEC maintain terminology 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
3.1
average outgoing quality
AOQ
fr: qualité moyenne après contrôle AOQ
de: Durchschlupf AOQ
percentage of the unknown distribution below the required characteristic value multiplied by the
corresponding acceptance probability of that distribution when using the applied conformity assessment
Note 1 to entry: In the case of strength, the word ‘required’ refers to the characteristic strength for the specified
compressive strength class or the characteristic strength of the reference concrete of the family.
3.2
average outgoing quality limit
AOQL
fr: limite de la qualité moyenne après contrôle AOQL
de: maximaler Durchschlupf AOQL
maximum average fraction below the required characteristic value in the accepted (or outgoing) concrete
production
3.3
acceptable quality level
AQL
fr: niveau de qualité acceptable NQA
de: annehmbare Qualitätsgrenze AQL
percentage of the unknown distribution worse than the specified characteristic of the property under
consideration that is considered satisfactory for the production of concrete
3.4
accreditation
third-party attestation related to a conformity assessment body conveying formal demonstration of its
competence, impartiality and consistent operation in performing specific conformity assessment
activities
[SOURCE: EN ISO/IEC 17000:2020, 7.7]
3.5
certification
third-party attestation related to an object of conformity assessment, with the exception of conformity
accreditation
[SOURCE: EN ISO/IEC 17000:2020, 7.6]
3.6
certification scheme
certification system related to specified products, to which the same specified requirements, specific
rules and procedures apply
Note 1 to entry: The rules, procedures and management for implementing product, process and service
certification are stipulated by the certification scheme.
[SOURCE: EN ISO/IEC 17065:2012, 3.9, modified - Notes 1, 2 and 4 to entry have been removed]
3.7
conformity assessment
demonstration that specified requirements are fulfilled
[SOURCE: EN ISO/IEC 17000:2020, 4.1, modified – Notes to entry has been removed]
3.8
conformity assessment body
body that performs conformity assessment activities, excluding accreditation
[SOURCE: EN ISO/IEC 17000:2020, 4.6]
3.9
declaration
first-party attestation
[SOURCE: EN ISO/IEC 17000:2020, 7.5]
3.10
verification
fr: vérification
de: Nachweise
confirmation by examination of objective evidence that specified requirements have been fulfilled
4 Symbols and abbreviations
For the purposes of this document, the following symbols and abbreviations apply:
AOQ Average outgoing quality
AOQL Average outgoing quality limit
AQL Average quality level
f Compressive strength of concrete determined by testing cubes
c,cube
f Compressive strength of concrete determined by testing cylinders
c,cyl
f Characteristic compressive strength of concrete
ck
NOTE 1 Where used in this document, this applies to both fck,cyl and fck,cube.
f Characteristic compressive strength of concrete determined by testing cubes
ck,cube
f Characteristic compressive strength of concrete determined by testing cylinders
ck,cyl
f Mean compressive strength of concrete
cm
NOTE 2 Where used in this document, this applies to both fcm,cyl and fcm,cube.
f Mean compressive strength of concrete at the age of (j) days
cm,j
n Number
σ Estimate for the standard deviation of a population
5 Conformity assessment and assessment criteria
5.1 General
(1) Conformity assessment comprises the combination of actions and decisions to be taken in accordance
with conformity rules adopted in advance to assess the conformity of the concrete with its specification.
NOTE 1 The properties of concrete used for conformity assessment are those measured by the appropriate tests
using standardized procedures. The actual values of the properties of the concrete in the structure may differ from
those determined by the tests depending on, e.g. dimensions of the structures, placing, compaction, curing and
environment.
(2) Where tests for factory production control according to EN 206-1 are the same as those required for
conformity assessment, they are permitted to be taken into account for the assessment of conformity.
Also other test data on the delivered concrete may be used in the conformity assessment.
(3) The conformity or non-conformity is judged against the assessment criteria. Conformity assessment
by a party different from the producer applies for the concrete delivered and not for the whole
production. Non-conformity shall lead to further action at the place of production and on the construction
site (see 5.4).
(4) Provisions valid in the place of use may give additional provisions on knowledge, training and
experience for the personnel responsible for the different tasks in assessment.
NOTE 2 The outcome of conformity assessment depends on the party assessing conformity or results. The result
of a conformity assessment by the producer is a declaration of conformity. The assessment by a 2nd party results
in a report on the assessment. The outcome of a 3rd party assessment is a report on the assessment and an optional
certification by the 3rd party. 2nd and 3rd party positive assessments increase confidence in the declaration of
conformity. Negative assessments create doubt in the declaration of conformity and initiate a series of actions.
5.2 Conformity assessment for designed concrete
5.2.1 Conformity assessment for compressive strength
5.2.1.1 General
(1) In the sampling and testing plan and the assessment criteria distinction is made between initial
production and continuous production.
(2) Initial production covers the production until at least 35 test results are available.
(3) Continuous production is achieved when at least 35 test results are obtained over a period not
exceeding 12 months.
(4) If the production has been suspended more than 12 months, the criteria, sampling and testing plan
given for initial production shall be adopted.
(5) During continuous production, the sampling and testing plan and the criteria for initial production
may be adopted.
(6) Unless specified otherwise, the compressive strength is determined on specimens tested at 28 days.
5.2.1.2 Sampling and testing
(1) The test result shall be that obtained from an individual specimen or the average of the results when
two or more specimens made from one sample are tested at the same age.
(2) Where two or more specimens are made from one sample and the range of the test values is more
than 15 % of the mean then the results shall be disregarded unless an investigation reveals an acceptable
reason to justify disregarding an individual test value.
5.2.1.3 Assessment criteria for compressive strength
(1) The achievement of the specified characteristic strength shall be assessed by one of the following
methods:
Method A: Initial production
(2) The mean strength of non-overlapping or overlapping groups of three consecutive results shall
satisfy:
ff≥( + 4) N/mm (1)
cm ck
NOTE 1 The assessment criteria are developed on the basis of non-overlapping test results. Application of the
criteria to overlapping test results increases the risk of rejection.
Method B: Continuous production
(3) Conformity assessment shall be made on test results taken during an assessment period that shall not
exceed the period given by one of the following options depending on the rate of testing:
— for assessment with lower testing rates (number of test results for designed concrete less than 35
per three months), the assessment period shall comprise at least 15 results and not more than 35
consecutive results taken over a period not exceeding 6 months;
— for assessment with higher testing rates (number of test results for designed concrete 35 or more
per three months) the assessment period shall comprise at least 15 consecutive results and not
exceed three months.
(4) The mean strength of non-overlapping or overlapping groups of consecutive test results obtained
from a single concrete or a concrete family according to EN 206-1 in an assessment period shall satisfy:
(2)
ff≥+( 1,)48σ N/mm
cm ck
NOTE 2 Formula (2) permits to achieve a maximum average outgoing quality (AOQ) not exceeding 5,0 %.
(5) The standard deviation of Formula (2) shall conform to the following formula:
2 2
χχ
0,975;nn−−1 0,;025 1
σσ≤≤s (3)
n
nn− 1 − 1
( ) ( )
where
χ is the α -fractile of a chi-squared distribution with ν = n – 1 degrees of freedom
αν;
s is the standard deviation of n consecutive test results
n
NOTE 3 Tabulated values can be found in EN 206-1:2026 Table 20.
Method C: Use of control charts
(6) Method C is an option for assessing conformity by the use of control charts when conditions of Method
B are established. Choice on the implementation of method C may be given in provisions valid in the place
of use.
(7) The control system shall comprise the application of a recognized model of control chart and have the
following characteristics:
— achieve a maximum average outgoing quality (AOQ) not exceeding 5,0 %;
— aim to ensure conformity of the relevant production with the required characteristic strength;
— include regular monitoring of strength and standard deviation or deviations from target values;
— where applicable, include one or more procedures for speeding the response of the system (e.g. use
of early strength data, use of concrete families);
— define and apply clear decision rules for conformity and warning limits;
— when the control chart shows that the standard deviation is ≥ 0,5 N/mm above the currently applied
value, change the applied value.
NOTE 4 As a control chart comprises successive sampling plans (with a known standard deviation), the
operating-characteristic curve of the individual sampling plan can be established. The AOQ curve is then determined
by multiplying each percentage of all possible results below the required characteristic strength in the production
by the corresponding acceptance probability.
NOTE 5 Annex A gives a method of application for cusum control charts and for Shewhart control charts with
examples of conformity rules that achieve an average o
...