scope:

This Standard specifies a method of penetrant testing used to detect discontinuities, e.g. cracks, laps, folds, porosity and incomplete fusion, which are open to the surface of the materials and products in manufacturing process or in service (hereafter referred to as parts to be tested), and also specifies classification of penetrant indication by discontinuities. Testing is mainly applied to metallic materials, but can also be performed on other materials, provided that they are inert to the test media and not excessively porous, for example, castings, forgings, welds, ceramics.

This Standard also includes requirements for process and control testing, but is not intended to be used for acceptance criteria and gives neither information relating to the suitability of individual test systems for specific applications nor requirements for test equipment.

NOTE 1 Methods for determining and monitoring the essential properties of penetrant testing products (hereafter referred to as testing products/ materials) to be used are specified in JIS Z 2343-2 and JIS Z 2343-3.

NOTE 2 The term "discontinuity" is used here in the sense that no evaluation concerning acceptability or non-acceptability is included.

NOTE 3 The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows.

ISO 3452-1: 2013 Non-destructive testing-Penetrant testing-Part 1: General principles (MOD)

In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/IEC Guide 21-1.