EN 14772:2021

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 o
...