Level I – Liquid Penetrant Testing

1.0        Introduction

1.1        Brief history of nondestructive testing and liquid penetrant testing

1.2        Purpose of liquid penetrant testing

1.3        Basic principles of liquid penetrant testing

1.4        Types of liquid penetrants commercially available

1.5        Method of personnel qualification

2.0        Liquid Penetrant Processing

2.1        Preparation of parts

2.2        Adequate lighting

2.3        Application of penetrant to parts

2.4        Removal of surface penetrant

2.5        Developer application and drying

2.6        Inspection and evaluation

2.7        Postcleaning

3.0        Various Penetrant Testing Methods

3.1        Current ASTM and ASME standard methods — ASTM E1208, 1209, 1210.

3.2        Characteristics of each method

3.3        General applications of each method

4.0        Liquid Penetrant Testing Equipment

4.1        Liquid penetrant testing units

4.2        Lighting for liquid penetrant testing equipment and light meters

4.3        Materials for liquid penetrant testing

4.4        Precautions in liquid penetrant testing

Total hours of instruction for this course:  8 hours

Level II – Liquid Penetrant Testing

1.0        Review

1.1        Basic principles

1.2        Process of various methods

1.3        Equipment

2.0        Selection of the Appropriate Penetrant Testing Method

2.1        Advantages of various methods

2.2        Disadvantages of various methods

3.0        Inspection and Evaluation of Indications

3.1        General

3.1.1     Discontinuities inherent in various materials

3.1.2     Reason for indications

3.1.3     Appearance of indications

3.1.4     Time for indications to appear

3.1.5     Persistence of indications

3.1.6     Effects of temperature and lighting (white to UV)

3.1.7     Effects of metal smearing operations (shot peening, machining, etc.)

3.1.8     Preferred sequence for penetrant inspection

3.1.9     Part preparation (precleaning, stripping, etc.)

3.2        Factors affecting indications

3.2.1     Penetrant used

3.2.2     Prior processing

3.2.3     Technique used

3.3        Indications from cracks

3.3.1     Cracks occurring during solidification

3.3.2     Cracks occurring during processing

3.3.3     Cracks occurring during service

3.4        Indications from porosity

3.5        Indications from specific material forms

3.5.1     Forgings

3.5.2     Castings

3.5.3     Plate

3.5.4     Welds

3.5.5     Extrusions

3.6        Evaluation of indications

3.6.1     True indications

3.6.2     False indications

3.6.3     Relevant indications

3.6.4     Nonrelevant indications

3.6.5     Process control

3.6.5.1    Controlling process variables

3.6.5.2    Testing and maintenance materials

4.0        Inspection Procedures and Standards

4.1        Inspection procedures (minimum requirements)

4.2        Standards/codes

4.2.1     Applicable methods/processes

4.2.2     Acceptance criteria

5.0        Basic Methods of Instruction

Total hours of instruction for this course: 8 hours