NEN EN 1371-1 : 2011

Foreword
Introduction
1 Scope
2 Normative references
3 Conditions for liquid penetrant inspection
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 Indications of discontinuities
    5.2 Definitions of liquid penetrant inspection
          indications
    5.3 Severity levels
6 Classification of the indications and interpretation
    of results
7 Ordering
8 Retesting
9 Post-examination cleaning procedures
10 Inspection documentation
Tables
1 Nature of discontinuities and types of corresponding
    liquid penetrant inspection indications
2 Severity levels for liquid penetrant inspection -
    Non-linear indications isolated (SP) or clustered (CP)
3 Severity levels for liquid penetrant inspection -
    Linear (LP) and aligned (AP) indications
4 Recommended surface finish for liquid penetrant
    inspection
Annexes
A (informative) Bibliography
B (informative) Reference figures - non-linear isolated
    indications designated SP
C (informative) Reference figures - Non-linear
    indications designated SP and CP
D (informative) Reference figures - linear and aligned
    indications designated LP and AP
E (informative) Model of a liquid penetrant inspection
    document

Applicable to the liquid penetrant testing of all castings (not including copper-tin and/or copper-tin-lead alloy castings, where copper is the main constituent) made in conventional sand moulds by gravity and low-pressure die casting. Not applicable to investment and pressure die casting.