EN 1371-1:2011

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Gießereiwesen - Eindringprüfung - Teil 1: Sand-, Schwerkraftkokillen- und NiederdruckkokillengussstückeFonderie - Contrôle par ressuage - Partie 1: Pièces moulées en sable, en coquille, par gravité et basse pressionFounding - Liquid penetrant inspection - Part 1: Sand, gravity die and low pressure die castings77.140.80Železni in jekleni ulitkiIron and steel castingsICS:Ta slovenski standard je istoveten z:EN 1371-1:2011SIST EN 1371-1:2012en,fr,de01-januar-2012SIST EN 1371-1:2012SLOVENSKI
STANDARDSIST EN 1371-1:19981DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1371-1
November 2011 ICS 77.140.80; 77.150.99 Supersedes EN 1371-1:1997English Version
Founding - Liquid penetrant testing- Part 1: Sand, gravity die and low pressure die castings
Fonderie - Contrôle par ressuage - Partie 1: Pièces moulées en sable, en coquille, par gravité et basse pression
Gießereiwesen - Eindringprüfung - Teil 1: Sand-, Schwerkraftkokillen- und Niederdruckkokillengussstücke This European Standard was approved by CEN on 15 October 2011.
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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
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B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1371-1:2011: ESIST EN 1371-1:2012

Conversion of severity levels of linear (LP) and aligned (AP) indications . 11Annex B (informative)
Nature of discontinuities and types of corresponding liquid penetrant indications . 12Annex C (informative)
Reference figures – Non-linear isolated indications designated SP . 13Annex D (informative)
Reference figures – Non-linear indications designated SP and CP . 16Annex E (informative)
Reference figures – Linear and aligned indications designated LP and AP . 18Annex F (informative)
Model of a liquid penetrant test report . 22Annex G (informative)
Significant technical changes between this European Standard and the previous edition . 25Bibliography . 26 SIST EN 1371-1:2012

The other standard is:  EN 1371-2, Founding — Liquid penetrant inspection — Part 2: Investment castings Annex G provides details of significant technical changes between this European Standard and the previous edition. According to the CEN/CENELEC Internal Regulations, the national standards organizations 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
This European Standard applies to all cast metals, except copper-tin and/or copper-tin-lead alloy castings, where copper is the major constituent. 2 Normative references The following referenced documents are indispensable for the application 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 473, Non-destructive testing —Qualification and certification of NDT personnel — General principles EN 571-1, Non destructive testing — Penetrant testing — Part 1: General principles EN ISO 3059, Non-destructive testing — Penetrant testing and magnetic particle testing — Viewing conditions (ISO 3059:2001) 3 Conditions for liquid penetrant testing The manufacturing stage(s) when liquid penetrant testing is to be performed shall be clearly defined by agreement between the manufacturer and the purchaser by the time of ordering. The methods detailed in this standard shall only apply to the agreed surfaces of castings and the percentage or number of castings to be checked. For each agreed area of the casting to be inspected, the following shall be indicated:  type of discontinuity;  severity level. This information enables the manufacturer to assess the additional testing and operations involved. Sensitivity can differ depending on the method of liquid penetrant testing selected and surface condition. Therefore the liquid penetrants used and the method agreed shall fit to detect the minimum required severity level. The type of discontinuity and the severity level can vary depending on the area of the casting inspected (see Table 1 and Table 2). The conversion from the severity levels specified in EN 1371-1:1997, Table 3 [1], to the severity levels specified in Table 2 of the present edition is given in Table A.1. 4 Method of testing 4.1 Operating mode Testing shall be carried out as described in EN 571-1. The characteristics of the penetrant materials shall be checked in accordance with specifications to be agreed between the manufacturer and the purchaser. SIST EN 1371-1:2012

4.3 Surface preparation The surface to be inspected shall be clean, free from rust, sand, scale, moulding and mould coating residues, oil, grease, paint or any other contaminant which can interfere with a correct testing. Shot blasting is not recommended prior to liquid penetrant testing, except for sand moulded castings. If shot blasting is necessary, it shall be as light as possible, in order to avoid sealing or closing up possible discontinuities. If the risk of sealing or closing up possible discontinuities is unacceptable then blasting shall be followed by chemical etching in order to enable detection of discontinuities. The chemical composition of the etching bath and other parameters such as concentration, temperature, immersion time neutralizing and rinsing, if applicable, shall be recorded. To detect the smallest indication to be considered, the surface finish shall be in accordance with Table 3, unless otherwise specified at the time of ordering. NOTE It is recommended that the assessment of surface finish is carried out using a visual cast-surface roughness comparator, see EN 1370. 4.4 Conditions of testing The testing shall be carried out with the naked eye or at a maximum magnification of 3 and viewing conditions in conformity with EN ISO 3059. 5 Acceptance criteria 5.1 Indications of discontinuities 5.1.1 General The indication of discontinuities can be non-linear (isolated or clustered), aligned or linear. Although liquid penetrant testing cannot generally be used to determine the size of detected discontinuities, it allows discontinuities to be assessed by measurement of the length L of the indication. In the following clauses:  L indicates length;  W indicates width;  P indicates liquid penetrant;  SP indicates non-linear isolated indication;  CP indicates non-linear clustered indication;  AP indicates aligned indication;  LP indicates linear indication. NOTE Based on the principle of the test method, the operator evaluates the size of the indications, not the real size of discontinuities. SIST EN 1371-1:2012
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