All purchased items from the store will be fulfilled from our off-site fulfillment center. This may affect shipping times. Any questions about the ordering process and returns should still be directed to ASNT Customer Support, at, or by phone at (800) 222-2768 or (614) 274-6003.

Effective 8 August, ASNT is discontinuing the practice of including paper errata inserts into new books. Customers who purchase a book with existing errata will be notified by email, with a link to ASNT’s webpage listing of errata: Errata should be verified by matching title, edition, and printing. Errata are fixed with subsequent printings and editions.

Personnel Training Publications: Liquid Penetrant Testing (PT), Classroom Training Book, Second Edition (eBook)


The Liquid Penetrant Testing Classroom Training Book covers Level I and Level II material and follows the body of knowledge outlined in CP-105 for liquid penetrant testing (PT). The second edition includes, but is not limited to, the following updates: new information on Type III dual-mode penetrant, light-emitting diode lamps, and recommendations for viewing shallow indications, as well as an expanded section on safety precautions. Figures and tables have also been added or updated to bring the material up to date.

  • Member Price: $21.50
  • Non-member Price: $28.60


ASNT eBooks require a reader that works with Adobe ID, such as Adobe Digital Editions.

eBook purchases are nonrefundable. You cannot print and copy eBooks unless specifically stated in the Product Description.

Additional Details

  • Item Number: 1640-e
  • Published: 2019
  • Pages: 98
  • Edition: Second
  • ISBN: 978-1-57117-446-8



Table of Contents

Level I Liquid Penetrant Testing

Chapter 1 – Introduction to Liquid Penetrant Testing

  • History
  • The Purpose of Liquid Penetrant Testing
  • Basic Principles
    • Commercially Available Liquid Penetrant Materials
  • Personnel Qualification and Certification
    • Employee Certification
      • Training
      • Experience
      • Examination
      • Certification
  • Safety Precautions
    • Fire
    • Skin Irritation
    • Air Pollution
    • Ultraviolet Radiation

Chapter 2 – Liquid Penetrant Processing

  • Procedures and Techniques
    • Preparation of Test Objects
    • Precleaning of Test Objects
  • Precleaning and Postcleaning Equipment
    • Solvent Cleaning
    • Detergent Cleaning
    • Vapor Degreasing
    • Steam Cleaning
    • Ultrasonic Cleaning
    • Rust and Surface Scale Removal
    • Paint Removal
    • Etching
    • Precleaning Processes to be Avoided
    • Precleaning and Postcleaning Materials
    • Drying Test Objects
  • Dwell Time
  • Application of Penetrant
  • Removal of Excess Surface Penetrant
    • Adequate Illumination
    • Water Rinse (Method A, B and D)
    • Manual Wipe (Method C)
    • Developer Application and Drying
      • Dry Powder
      • Water Soluble
      • Water Suspendible
      • Nonaqueous
    • Development Time
  • Interpretation and Evaluation
    • Interpretation
    • Evaluation
  • Indications
    • False Indications
    • Nonrelevant Indications
    • Relevant Indications
  • Categories of Relevant Indications
    • Continuous Linear
    • Intermittent Linear
    • Round
    • Diffused or Weak
  • Discontinuity Depth Determination
  • Typical Indications
  • Postcleaning
    • Postcleaning Materials

Chapter 3 – Liquid Penetrant Testing Methods

  • Standard Methods
    • Method Characteristics
      • Fluorescent or Visible
      • Solvent or Water Removable
    • Inline Penetrant Systems
    • Lipophilic Emulsification
    • Hydrophilic Emulsification

Chapter 4 – Liquid Penetrant Testing Equipment

  • Liquid Penetrant Testing Units
    • Stations
    • Auxiliary Equipment
      • Pumps
      • Sprayers and Applicators
      • Lights
      • Timers
      • Thermostats and Thermometers
      • Exhaust Fans
      • Refractometer
      • Hydrometer
  • Portable Equipment
    • Visible Dye Penetrant Kit
    • Fluorescent Penetrant Kit
  • Ultraviolet Radiation
    • Tubular Fluorescent Cold Discharge Sources
    • Testing in Subdued White Light
    • Light Meters
  • Materials for Liquid Penetrant Testing
    • Precleaning and Postcleaning Materials
    • Water Washable Penetrants
    • Postemulsification Penetrants
    • Emulsifiers
  • Solvent Removers
    • Dry Developer
    • Nonaqueous Wet Developer
    • Water Based Developers
    • Special Purpose Penetrant Materials
  • Precautions

Level II Liquid Penetrant Testing

Chapter 5 – Selection of Liquid Penetrant Testing Method

  • Selection
  • Advantages and Disadvantages
    • Portability
    • Postemulsification
    • Dry Developer
    • Wet Developers

Chapter 6 – Interpretation and Evaluation of Indications

  • Discontinuity Categories
    • Inherent Discontinuities
    • Processing Discontinuities
    • Service Discontinuities
  • Indications
    • Forming of Discontinuity Indications
    • Time for Indications to Appear
    • Persistence of Indications
    • Effects of Temperature
    • Lighting
    • Effects of Metal Smearing Operations
    • Sequence
    • Test Object Preparation
  • Factors Affecting Indications
    • Penetrant Used
    • Prior Processing
  • Crack Indications
    • Solidification Cracks
    • Processing Cracks
    • Service Cracks
  • Porosity Indications
  • Indications from Specific Material Forms
    • Forgings
    • Castings
    • Plate
    • Welds
    • Extrusions
  • Evaluation of Indications
    • False Indications
    • Relevant Indications
    • Nonrelevant Indications

Chapter 7 – Liquid Penetrant Process Control

  • Quality Control of Test Materials
    • Test Material Control Samples
  • Reference Blocks
    • System Monitor Panels
    • Aluminum Reference Blocks
      • Preparation for Use
      • Preparation for Reuse
    • Ceramic Reference Blocks
      • Preparation for Use
      • Usage
      • Cleaning After Use
    • Anodized and Plated Test Panels
      • Preparation for Use
      • Usage
    • Twin NiCr Sensitivity Panels
    • Stainless Steel Test Panels
      • Preparation for Use
    • Low Cycle Fatigue Blocks
  • Tests of Liquid Penetrant Materials
    • Sensitivity Comparison Test
    • Water Washability Test
    • Water Content Test
    • Fluorescent Luminance Test
  • Emulsifier Tests
  • Developer Tests
    • Dry Developer
    • Wet Developer

Chapter 8 – Test Procedures and Standards

  • Procedures, Standards and Codes
    • Acceptance Criteria
  • Basic Methods of Instruction
  • Conclusion


Bibliography and Figure Sources


Terms and Conditions

Books, including ePDF books and merchandise:

  • All sales are final on software and multimedia products.
  • All customers must request a return authorization number from ASNT before attempting to return any items.
  • Materials returned to ASNT must be shipped prepaid. Only unused or defective materials will be considered as returns. If a set is purchased, the complete set must be returned to receive refund. No returns will be accepted after 45 days from date of invoice.

Damaged Items:

  • If item is damaged contact ASNT immediately and keep shipping container.

Delivery Information:

  • Orders are processed as quickly as possible and shipped the next business day of the receipt. If you request 2nd day or next day shipping if the order comes in before noon eastern standard time it will be shipped the same day.   For ground shipping on international delivery, please allow two weeks before inquiring.
  • Customers with shipping addresses outside of the US are responsible for all duties, import taxes, and brokerage fees. These are not included in the cost of shipping or handling of your order. Customs, duties, and taxes vary widely from country to country; please check with your local customs agency for details on estimated costs.  If taxes and duties are not paid by customer, order is forfeited and is non-refundable.
  • The purchaser is responsible for advising ASNT of any customs regulations pertaining to the order and for supplying all proper customs declaration forms with the order.    Please email this information to along with your order number.

Shipment Inquiry:

  • We cannot accept claims of short or lost shipments after 10 days from shipment date for domestic customers or after 20 days from shipment date for international customers.

About ASNT eBooks

ASNT eBooks are ePDFs and they provide you with enhanced flexibility, portability, searching and convenience. Here are some of the basic features of ASNT ePDFs:

    ASNT ePDFs can be read online or offline.
  • You have 90 days to download ePDFs from our web site.
  • We allow up to 6 devices that can be authorized to view ePDFs.
  • Table of Contents allows you to jump directly to major sections of the eBook.
  • You can bookmark a page, or highlight a selection of text, and even add your own notation.  Adobe Digital Editions will save these annotations and allow you to jump directly to them.

ASNT has an obligation to protect content rights and copyright ownership; therefore, there are copyright or distribution restrictions associated with ePDFs as with a printed book. ASNT ePDFs utilize Digital Rights Management (DRM) that is built into Adobe® Digital Editions. Usage and security settings for each ePDF may vary. You can view DRM settings for your ePDF through the Adobe® Digital Editions program. Here are some important restrictions you must be aware of:

  • No copying and pasting is allowed.
  • You cannot print unless specifically stated in the Product Description.
  • No returns are allowed.
  • Each ePDF is intended for a single user. You cannot give away, sell, lend or distribute an ePDF or transfer the user rights to another individual or organization if it has been purchased under your name.
  • ePDFs cannot be shared with your co-workers or staff. They must purchase and download a separate copy of the ePDF.
  • You cannot recreate a PDF of an ePDF.

Other restrictions may apply, please see our user agreement.


Every eBook is suitable for your PC or Mac computer. To make sure your computer can run the program, see the minimum software requirements.

System requirements


  • Intel® Pentium® 4 processor or later
  • Windows® XP SP 3 or Windows® 7 (32 or 64 bit running in 32-bit mode)
  • 512MB of RAM (1GB recommended)
  • 40MB of available hard-disk space

Mac OS

  • Intel Core™ Duo or faster processor
  • Mac OS X v10.6 or later
  • 512MB of RAM (1GB recommended)
  • 75MB of available hard-disk space

Compatible with Apple Retina Display

  • Intel Core™ Duo or faster processor
  • Mac OS X v10.6 or later
  • Compatible with Apple Retina Display
  • 512MB of RAM (1GB recommended)
  • 75MB of available hard-disk space


If you want to use a reading device, there are lots of choices. See a full list of devices and applications that work with Adobe Content Service.

You can download an eBook directly from myASNT to your device, or copy your book from a desktop computer that has been authorized with your Adobe ID.

Before downloadning or transferring your eBook, you must install and authorize an eReader comptible with Adobe ID. We recommend the free Bluefire Reader.

The URL for the Bluefire Reader app in the Google Play Store (Android) is:

The URL for the Bluefire Reader app in the iOS App Store is:

Related Products