Flanges and their joints - Quality assurance inspection and testing of gaskets in accordance with the series of standards EN 1514 and EN 12560

This document specifies the quality assurance procedures that are applicable to ensure that delivered gaskets comply with the relevant product standards. This document sets down procedures by which a user can have confidence that the salient features of each batch of gaskets or gasket materials delivered to them will be constant.
The gasket types covered by this document are those that are within the scope of the EN 1514 series and EN 12560 series and are simultaneously within the scope of the EN 1591 series. An exception is those gaskets intended solely for domestic fluids (like water, waste water ...) which are based on rubber with or without reinforcement like fillers and/or inserts.

Flansche und ihre Verbindungen - Qualitätssicherungsprüfung und Prüfung von Dichtungen nach den Normen der Reihen EN 1514 und EN 12560

Dieses Dokument legt die Qualitätssicherungsverfahren fest, die anwendbar sind, um sicherzustellen, dass die gelieferten Dichtungen den jeweiligen Produktnormen entsprechen. Dieses Dokument legt Verfahren fest, durch die ein Anwender darauf vertrauen kann, dass die wesentlichen Merkmale jedes an ihn gelieferten Loses von Dichtungen oder Dichtungswerkstoffen konstant bleiben.
Die in diesem Dokument behandelten Dichtungsarten sind diejenigen, die in den Anwendungsbereich der Normenreihe EN 1514 und der Normenreihe EN 12560 sowie gleichzeitig der Normenreihe EN 1591 fallen. Eine Ausnahme bilden die ausschließlich für Flüssigkeiten für den häuslichen Gebrauch (z. B. Wasser, Abwasser usw.) bestimmten Dichtungen aus Gummi mit oder ohne Verstärkung wie Füllstoffe und/oder Einlagen.

Brides et leurs assemblages - Contrôle de l'assurance de la qualité et essais de joints conformément aux séries de normes EN 1514 et EN 12560

Le présent document spécifie les modes opératoires d’assurance de la qualité applicables pour garantir que les joints fournis sont conformes aux normes de produits correspondantes. Le présent document fixe des modes opératoires qui donnent aux utilisateurs l’assurance que les caractéristiques principales de chaque lot de joints ou matériaux de joints qui leur sont fournis sont constantes.
Les types de joints couverts par le présent document sont ceux qui relèvent du domaine d’application des séries de normes EN 1514 et EN 12560 et simultanément du domaine d’application de la série de normes EN 1591, à l’exception des joints uniquement destinés à un usage domestique (par exemple, pour l’eau, les eaux usées...) qui sont en caoutchouc, avec ou sans renfort, tel que des matériaux de remplissage et/ou des inserts.

Prirobnice in prirobnični spoji - Nadzor in preskušanje za zagotavljanje kakovosti tesnil, izdelanih skladno s standardi serije EN 1514 in EN 12560

General Information

Status
Published
Publication Date
19-Jan-2021
Withdrawal Date
30-Jul-2021
ICS
23.040.60 - Flanges, couplings and joints
 
23.040.80 - Seals for pipe and hose assemblies
Technical Committee
CEN/TC 74 - Flanges and their joints
Drafting Committee
CEN/TC 74/WG 8 - Gaskets
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
20-Jan-2021
Completion Date
20-Jan-2021
Ref Project
SIST EN 14772:2021 - Flanges and their joints - Quality assurance inspection and testing of gaskets in accordance with the series of standards EN 1514 and EN 12560

Relations

Replaces
EN 14772:2005 - Flanges and their joints - Quality assurance inspection and testing of gaskets in accordance with the series of standards EN 1514 and EN 12560
Effective Date
27-Jan-2021

Overview

EN 14772:2021 - "Flanges and their joints - Quality assurance inspection and testing of gaskets in accordance with the series of standards EN 1514 and EN 12560" - is a CEN European standard that defines quality assurance (QA) procedures to ensure delivered gaskets conform to their product standards and that batch-to-batch characteristics remain consistent. The 2021 edition supersedes EN 14772:2005 and adds procedures such as a comparative graphite oxidation determination (clause 6.7). The standard covers gasket types that fall within the EN 1514 and EN 12560 series and are also within the scope of EN 1591, with an explicit exclusion for rubber-based gaskets intended solely for domestic fluids.

Key Topics and Requirements

  • Scope and purpose: Procedures to give users confidence that salient features of each gasket batch are constant and meet the relevant product standards.
  • Three-part structure:
    • QA inspection and testing of finished gaskets (mapped to clauses in the relevant EN 1514 / EN 12560 parts).
    • QA testing/inspection of individual materials used in composite gaskets (e.g., exfoliated graphite, PTFE, metal, millboard, rubber-bound sheet materials).
    • Simple functional testing methods for gasket types to verify performance.
  • Gasket types covered include (per the EN 1514 / EN 12560 parts):
    • Non-metallic flat gaskets (with/without inserts)
    • Spiral wound gaskets
    • PTFE envelope gaskets
    • Corrugated, flat, grooved and filled metallic gaskets
    • Metallic ring type gaskets
    • Covered serrated and jacketed gaskets
    • Polymeric O‑ring gaskets
  • Recommended test procedures: thickness, density/weight per unit area, ash/ignition loss, compression & recovery, chloride & sulphur content, graphite oxidation comparative test, gas permeability, stress retention, hardness, and reporting requirements.
  • Practical emphasis: tests are selected for simplicity and rely on widely available laboratory equipment.

Practical Applications

  • Ensures reliable gasket performance in industrial piping and flanged-joint applications where consistency and safety are critical.
  • Supports procurement and incoming inspection processes by providing objective QA tests and acceptance criteria.
  • Useful for quality control in gasket manufacture and for independent testing laboratories performing batch verification.
  • Helps reduce leak risk and operational downtime by standardizing inspection/testing procedures for gasket materials and finished products.

Who Should Use This Standard

  • Gasket manufacturers and suppliers (batch QA)
  • Plant engineers and maintenance teams specifying gaskets for flanged joints
  • Procurement and quality assurance professionals approving gasket deliveries
  • Testing laboratories performing material and functional verification
  • Designers and engineers working with EN 1591 bolted flange joint calculations

Related Standards

  • EN 1514 series (dimensions and types for PN flanges)
  • EN 12560 series (dimensions and types for Class-designated flanges)
  • EN 1591 series (assessment of bolted flange joints)
  • Specific parts referenced (e.g., EN 1514-1, -2, -3, -4, -6, -7, -8 and EN 12560-1, -2, -3, -4, -5, -6, -7)

Keywords: EN 14772:2021, gaskets, quality assurance, flanges, EN 1514, EN 12560, inspection, testing, gasket materials, graphite oxidation.

Frequently Asked Questions

EN 14772:2021 is a standard published by the European Committee for Standardization (CEN). Its full title is "Flanges and their joints - Quality assurance inspection and testing of gaskets in accordance with the series of standards EN 1514 and EN 12560". This standard covers: This document specifies the quality assurance procedures that are applicable to ensure that delivered gaskets comply with the relevant product standards. This document sets down procedures by which a user can have confidence that the salient features of each batch of gaskets or gasket materials delivered to them will be constant. The gasket types covered by this document are those that are within the scope of the EN 1514 series and EN 12560 series and are simultaneously within the scope of the EN 1591 series. An exception is those gaskets intended solely for domestic fluids (like water, waste water ...) which are based on rubber with or without reinforcement like fillers and/or inserts.

This document specifies the quality assurance procedures that are applicable to ensure that delivered gaskets comply with the relevant product standards. This document sets down procedures by which a user can have confidence that the salient features of each batch of gaskets or gasket materials delivered to them will be constant. The gasket types covered by this document are those that are within the scope of the EN 1514 series and EN 12560 series and are simultaneously within the scope of the EN 1591 series. An exception is those gaskets intended solely for domestic fluids (like water, waste water ...) which are based on rubber with or without reinforcement like fillers and/or inserts.

EN 14772:2021 is classified under the following ICS (International Classification for Standards) categories: 23.040.60 - Flanges, couplings and joints; 23.040.80 - Seals for pipe and hose assemblies. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 14772:2021 has the following relationships with other standards: It is inter standard links to EN 14772:2005. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

You can purchase EN 14772:2021 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-april-2021
Nadomešča:
SIST EN 14772:2005
Prirobnice in prirobnični spoji - Nadzor in preskušanje za zagotavljanje kakovosti
tesnil, izdelanih skladno s standardi serije EN 1514 in EN 12560
Flanges and their joints - Quality assurance inspection and testing of gaskets in
accordance with the series of standards EN 1514 and EN 12560
Flansche und ihre Verbindungen - Qualitätssicherungsprüfung und Prüfung von
Dichtungen nach den Normen der Reihen EN 1514 und EN 12560
Brides et leurs assemblages - Contrôle de l'assurance de la qualité et essais de joints
conformément aux séries de normes EN 1514 et EN 12560
Ta slovenski standard je istoveten z: EN 14772:2021
ICS:
23.040.60 Prirobnice, oglavki in spojni Flanges, couplings and joints
elementi
23.040.80 Tesnila za cevne zveze Seals for pipe and hose
assemblies
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 14772
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2021
EUROPÄISCHE NORM
ICS 23.040.60; 23.040.80 Supersedes EN 14772:2005
English Version
Flanges and their joints - Quality assurance inspection and
testing of gaskets in accordance with the series of
standards EN 1514 and EN 12560
Brides et leurs assemblages - Contrôle de l'assurance Flansche und ihre Verbindungen -
de la qualité et essais de joints conformément aux Qualitätssicherungsprüfung und Prüfung von
séries de normes EN 1514 et EN 12560 Dichtungen nach den Normen der Reihen EN 1514 und
EN 12560
This European Standard was approved by CEN on 13 December 2020.

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, Turkey 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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14772:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Definitions . 7
4 Structure of this document . 7
5 Quality assurance tests and inspections . 7
5.1 Quality assurance inspection and testing of gaskets as indicated in the relevant
standard . 7
5.1.1 General. 7
5.1.2 Non-metallic flat gasket with or without inserts . 8
5.1.3 Spiral wound gaskets . 8
5.1.4 Non-metallic PTFE envelope gaskets . 9
5.1.5 Corrugated, flat or grooved metallic and filled metallic gaskets . 9
5.1.6 Metallic ring type gaskets . 9
5.1.7 Covered serrated metal gaskets . 9
5.1.8 Covered jacketed gaskets . 10
5.1.9 Polymeric “O” Ring Gaskets . 10
5.2 Quality assurance tests that are relevant for the components of composite gaskets . 10
5.2.1 General. 10
5.2.2 Exfoliated graphite . 11
5.2.3 PTFE (All forms) . 11
5.2.4 Plate silicate . 11
5.2.5 Millboard . 11
5.2.6 Rubber bound, fibre reinforced, sheet material . 11
5.2.7 Metal . 12
5.3 Functional testing of the gaskets . 12
5.3.1 General. 12
5.3.2 Non-metallic flat gaskets with or without inserts . 12
5.3.3 Spiral wound gaskets . 12
5.3.4 Non-metallic PTFE envelope gaskets . 12
5.3.5 Corrugated, flat or grooved metallic and filled metallic gaskets . 12
5.3.6 Metallic ring type gaskets . 12
5.3.7 Covered serrated metal gaskets . 12
5.3.8 Covered jacketed gaskets . 13
5.3.9 Polymeric “O” Ring Gaskets . 13
6 Recommended test procedures . 13
6.1 Thickness determination . 13
6.2 Density/Weight per unit area determination . 13
6.3 Ash content/Ignition loss determination . 13
6.4 Compression and recovery determination . 13
6.5 Chloride content determination . 13
6.6 Sulphur content determination . 14
6.7 Comparative graphite oxidation determination . 14
6.7.1 Testing equipment . 14
6.7.2 Sampling . 14
6.7.3 Conditioning . 14
6.7.4 Procedure of measurement . 14
6.7.5 Evaluation. 14
6.7.6 Safety Limits . 15
6.8 Gas permeability determination . 15
6.9 Stress retention determination . 15
6.10 Hardness . 16
7 Reporting . 16
Bibliography . 17

European foreword
This document (EN 14772:2021) has been prepared by Technical Committee CEN/TC 74 “Flanges and
their joints”, the secretariat of which is held by DIN.
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 July 2021, and conflicting national standards shall be
withdrawn at the latest by July 2021.
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 EN 14772:2005.
In comparison with the previous edition, the following technical modifications have been made:
a) Introduction of 6.7 “Comparative graphite oxidation determination”.
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, Turkey and the
United Kingdom.
Introduction
This document provides a set of quality assurance procedures which is applicable to a wide range of
gasket types encompassing most types of industrial applications.
1 Scope
This document specifies the quality assurance procedures that are applicable to ensure that delivered
gaskets comply with the relevant product standards. This document sets down procedures by which a
user can have confidence that the salient features of each batch of gaskets or gasket materials delivered
to them will be constant.
The gasket types covered by this document are those that are within the scope of the EN 1514 series
and EN 12560 series and are simultaneously within the scope of the EN 1591 series. An exception is
those gaskets intended solely for domestic fluids (like water, waste water .) which are based on rubber
with or without reinforcement like fillers and/or inserts.
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 1514-1:1997, Flanges and their joints — Dimensions of gaskets for PN-designated flanges — Part 1:
Non-metallic flat gaskets with or without inserts
EN 1514-2:2014, Flanges and their joints — Gaskets for PN-designated flanges — Part 2: Spiral wound
gaskets for use with steel flanges
EN 1514-3:1997, Flanges and their joints — Dimensions of gaskets for PN-designated flanges — Part 3:
Non-metallic PTFE envelope gaskets
EN 1514-4:1997, Flanges and their joints — Dimensions of gaskets for PN-designated flanges — Part 4:
Corrugated, flat or grooved metallic and filled metallic gaskets for use with steel flanges
EN 1514-6:2003, Flanges and their joints — Dimensions of gaskets for PN-designated flanges — Part 6:
Covered serrated metal gaskets for use with steel flanges
EN 1514-7:2004, Flanges and their joints — Gaskets for PN-designated flanges — Part 7: Covered metal
jacketed gaskets for use with steel flanges
EN 1514-8:2004, Flanges and their joints — Dimensions of gaskets for PN-designated flanges — Part 8:
Polymeric O-Ring gaskets for grooved flanges
EN 12560-1:2001, Flanges and their joints — Gaskets for Class-designated flanges — Part 1: Non-metallic
flat gaskets with or without inserts
EN 12560-2:2013, Flanges and their joints — Dimensions of gaskets for Class-designated flanges — Part
2: Spiral wound gaskets for use with steel flanges
EN 12560-3:2001, Flanges and their joints — Gaskets for Class-designated flanges — Part 3: Non-metallic
PTFE envelope gaskets
EN 12560-4:2001, Flanges and their joints — Gaskets for Class-designated flantes — Part 4: Corrugated,
...

Questions, Comments and Discussion

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SIST EN 14772:2021の標準文書は、フランジとその接合部に関する重要なガスケットの品質保証検査と試験の手続きを詳細に規定しています。この標準の範囲は、EN 1514およびEN 12560シリーズに基づくガスケットが、関連する製品規格に準拠していることを保証するための手続きを含んでいます。また、提供されるガスケットまたはガスケット材料の各バッチの特性が一貫していることをユーザーが信頼できるようにするための手続きも明示されています。 この標準は、EN 1514シリーズおよびEN 12560シリーズに該当するガスケットタイプに適用され、さらにEN 1591シリーズにも適合しています。これにより、広範な用途において、ガスケットの品質が維持されることが保証されます。ただし、家庭用流体（例えば水や廃水）のみを対象としたゴム製のガスケットは、補強材やインサートを含むか否かにかかわらず、この標準の適用外となります。 SIST EN 14772:2021の強みは、ガスケットの品質保証に関する厳密な基準を提供することにあり、業界全体での一貫性を促進します。また、この標準に従うことで、製品の安全性と信頼性が向上し、ユーザーは実際のアプリケーションでのパフォーマンスを確保できます。 総じて、SIST EN 14772:2021は、ガスケットの品質を確実にするために有用な指針を提供し、関連する規格と連携することで、広範な産業ニーズに応える重要な標準であると言えます。

The EN 14772:2021 standard is a critical document within the scope of quality assurance for gaskets used in flange joints, particularly emphasizing compliance with the EN 1514 and EN 12560 series. This standard provides comprehensive guidelines aimed at ensuring that delivered gaskets meet the necessary product standards, thereby instilling a high level of confidence in users regarding the consistency of gasket features in each batch supplied. One of the primary strengths of the EN 14772:2021 standard is its focus on quality assurance procedures. These procedures are designed to help users verify that the gaskets or gasket materials they receive adhere to predetermined quality criteria, mitigating the risk of issues related to performance or safety in critical applications. The inclusion of both the EN 1514 and EN 12560 series provides a broader assurance framework that enhances the reliability of the gaskets across various pressure and temperature conditions. Furthermore, the standard recognizes the indispensable role of gaskets in maintaining the integrity of piping systems by clearly delineating the types of gaskets that fall under its purview. This clarity ensures that manufacturers and users alike know the specific gaskets covered, facilitating better compliance and understanding. The EN 14772:2021’s emphasis on exclusion of gaskets intended solely for domestic fluids reflects a keen awareness of the differing requirements across various applications, which adds to its relevancy in industrial contexts. By focusing on gaskets that engage with more demanding operational environments, the standard positions itself as a key resource for industries requiring assured performance and reliability. Overall, the EN 14772:2021 standard stands out in its meticulous approach to quality assurance for gaskets in flange joints, reinforcing its importance in the regulatory landscape by ensuring that users can confidently source gaskets that consistently meet high standards of quality.

Die Norm EN 14772:2021 bietet eine umfassende Grundlage für die Qualitätssicherung von Dichtungen, die in Verbindung mit Flanschen und deren Verbindungen verwendet werden. Ihr Hauptaugenmerk liegt auf den Verfahren zur Qualitätssicherung, die sicherstellen sollen, dass die gelieferten Dichtungen den relevanten Produktstandards entsprechen. Diese Norm ist besonders relevant für Hersteller und Anwender, die ein hohes Maß an Vertrauen in die Konsistenz und Zuverlässigkeit der gelieferten Dichtungen benötigen. Ein wesentlicher Stärke dieser Norm besteht darin, dass sie klare und strukturierte Verfahren festlegt, die eine kontinuierliche Qualitätskontrolle ermöglichen. Dies ist entscheidend, um sicherzustellen, dass die Eigenschaften jeder Charge von Dichtungen oder Dichtungsmaterialien konstant bleiben. Die normative Abdeckung umfasst Dichtungen, die im Rahmen der Normenreihen EN 1514 und EN 12560 sowie innerhalb des Anwendungsbereichs der EN 1591-Normen fallen. Dies gewährleistet, dass die Norm nicht nur eine breite Anwendung findet, sondern auch die branchenüblichen Standards berücksichtigt. Die klaren Vorgaben der EN 14772:2021 tragen dazu bei, die Qualität und Sicherheit der Anwendungen zu erhöhen, in denen diese Dichtungen eingesetzt werden. Insbesondere werden Dichtungen, die nicht nur für industrielle Anwendungen, sondern auch für spezifische Anforderungen in verschiedenen Sektoren ausgelegt sind, berücksichtigt. Ein wichtiger Aspekt ist die Tatsache, dass Dichtungen, die ausschließlich für häusliche Flüssigkeiten bestimmt sind und auf Gummi basieren, nicht in den Anwendungsbereich dieser Norm fallen. Dies ermöglicht eine fokussiertere Behandlung von Materialien, die für anspruchsvollere industrielle Anwendungen konzipiert sind. Insgesamt stellt die Norm EN 14772:2021 einen bedeutenden Mehrwert für die Industrie dar, da sie einen klaren Rahmen für die Qualitätssicherung von Dichtungen bietet, die essenziell für die Gewährleistung der Sicherheit und Funktionsfähigkeit in verschiedenen Anwendungen sind. Die Kombination aus umfassender Regulierung und spezifischer Anwendbarkeit stellt sicher, dass Benutzer Vertrauen in die Qualität und Leistung der Dichtungen haben können, die sie verwenden.

SIST EN 14772:2021 문서는 가스켓의 품질 보증 검사 및 시험 절차를 명확히 규정하고 있습니다. 이 표준은 EN 1514 및 EN 12560 시리즈와 관련된 제품 표준에 따라 제공되는 가스켓이 해당 기준을 준수하는지 확인하기 위한 품질 보증 절차를 정의합니다. 표준의 주요 강점은 각 배치의 가스켓이나 가스켓 재료의 중요한 특성이 일정하게 유지된다는 확신을 사용자에게 제공한다는 점입니다. 문서의 범위는 EN 1514 및 EN 12560 시리즈에 해당하는 가스켓 유형을 포괄하며, EN 1591 시리즈와도 관련이 있는 경우에 해당합니다. 특히 이 표준은 사용자가 설정한 품질 기준에 맞춘 검사 절차를 갖추고 있어, 다양한 산업 환경에서의 사용에 대한 신뢰성을 높입니다. 또한, 에너지 및 산업 분야에서 필수적인 부품으로서의 가스켓의 역할을 강조하며, 이를 통해 가스켓 품질의 중요성 역시 확인할 수 있습니다. 가정용 액체(예: 물, 오수 등)를 위한 고무 기반 가스켓은 제외되지만, 이는 특정 요구사항에 맞춘 기준을 충족시키기 위함입니다. 따라서 SIST EN 14772:2021 표준은 가스켓 제조업체와 사용자 간의 신뢰를 구축하고, 품질 보증 및 검사 절차에 대한 명확한 가이드라인을 제공함으로써 가스켓의 성능과 신뢰성을 보장하는 데 중요한 역할을 합니다. 이 표준은 가스켓 관련 산업 분야에서 적절한 품질 관리의 기반을 마련하며, 앞으로도 지속적인 기술 발전과 품질 개선의 토대가 될 것입니다.

La norme SIST EN 14772:2021 se concentre sur l'assurance qualité dans le domaine des joints, spécifiquement les joints d'étanchéité, en se référant aux normes EN 1514 et EN 12560. Son champ d'application est clairement défini et englobe les procédures d'assurance qualité nécessaires pour garantir que les joints livrés respectent les normes de produit pertinentes. Cette précision dans le domaine de l'assurance qualité est cruciale pour les utilisateurs qui cherchent à maintenir un niveau constant de qualité dans les joints utilisés dans divers systèmes. Une des forces majeures de cette norme est son approche systématique qui permet aux utilisateurs de s'assurer que les caractéristiques essentielles de chaque lot de joints ou de matériaux de joints livrés sont constantes. Cela répond à un besoin fondamental d'homogénéité et de fiabilité dans l'approvisionnement, ce qui est essentiel pour le bon fonctionnement des systèmes où ces joints sont intégrés. De plus, la norme inclut une large gamme de types de joints, ceux couverts par les séries EN 1514 et EN 12560, tout en respectant en même temps les exigences de la série EN 1591. Cette interrelation entre les différentes normes renforce la pertinence de la SIST EN 14772:2021 dans le cadre réglementaire plus large des composants de flan et de joints. Il est également important de noter que la norme exclut explicitement les joints destinés uniquement aux fluides domestiques qui sont basés sur du caoutchouc avec ou sans renforts. Cela démontre une attention particulière à la spécificité des applications et permet de mieux cerner l'étendue et l'objectif de cette norme. En résumé, la norme SIST EN 14772:2021 joue un rôle clé dans l'assurance qualité des joints, en établissant des procédures claires et des expectations précises pour les utilisateurs. Sa pertinence dans le secteur des joints et ses points forts font de cette norme un outil indispensable pour garantir la conformité et la fiabilité des produits livrés.