BS ISO 4987:2010 - Steel castings. Liquid penetrant inspection – BSI British Standards

BS ISO 4987:2010

Steel castings. Liquid penetrant inspection

Status : Superseded, Withdrawn   Published : April 2010 Replaced By : BS ISO 4987:2020

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BS ISO 4987:2010 Steel castings. Liquid penetrant inspection

BS ISO 4987 is an International Standard which specifies a method for the liquid penetrant inspection of steel castings, whatever their grade and the casting procedure used to produce them.

Contents of BS ISO 4987:

1 Scope
2 Normative references
3 Ordering information
4 Method of inspection
4.1 Operating mode
4.2 Qualification of the operators
4.3 Surface preparation
4.4 Conditions of inspection
5 Acceptance criteria
5.1 Definition of liquid penetrant indications
5.1.1 General
5.1.2 Non-linear indications (SP
5.1.3 Linear indication (LP
5.2 Severity levels
5.2.1 General
5.2.2 Non-linear indications
5.2.3 Linear indications
5.2.4 Selection of the severity level
5.2.5 Designation of severity levels
6 Classification of the indications and interpretation of results
6.1 Classification of the indications using Tables 1 and 2
6.1.1 General
6.1.2 Non-linear indications
6.1.3 Linear indications
6.2 Interpretation of results
7 Retesting
8 Post-examination cleaning procedures
9 Inspection documentation
Annex A (informative) Recommended surface finish for liquid penetrant inspection
Annex B (informative) Reference figures — Non-linear isolated indications (SP
Annex C (informative) Reference figures — Linear indications (LP
Annex D (informative) Model of a liquid penetrant inspection document


Standard NumberBS ISO 4987:2010
TitleSteel castings. Liquid penetrant inspection
StatusSuperseded, Withdrawn
Publication Date30 April 2010
Withdrawn Date13 February 2020
Normative References(Required to achieve compliance to this standard)ISO 3059, ISO 3452-1, ISO 9712, ISO 4990
Informative References(Provided for Information)ISO 11971
Replaced ByBS ISO 4987:2020
International RelationshipsISO 4987:2010
Draft Superseded By08/30144215 DC
DescriptorsFlaw detection, Non-destructive testing, Visual inspection (testing), Classification systems, Liquids, Castings, Penetrant flaw detection, Steels, Surface defects, Grades (quality)
Title in FrenchPièces moulées en acier. Contrôle par ressuage
Title in GermanStahlguss. Eindringprüfung
ISBN978 0 580 56318 8
File Size618 KB

*To ask about withdrawn titles contact the
Customer Relations, +44 345 086 9001
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