ASTM standards are copyrighted materials. While ASTM allows "single copies for individual use" in some educational contexts, distributing a free, full-resolution PDF of the reference photographs without a license is copyright infringement. More importantly, low-resolution scans are dangerous . If you cannot distinguish between a Level 2 shrinkage and a Level 3 shrinkage, you might reject a good part (or worse, accept a bad part).
Indications caused by magnetic field variations rather than material flaws. Format & Availability
: Contains the standard text along with descriptions and explanatory notes for the 31 photographs. Hard Copy (Adjunct)
Small gas bubbles or voids distributed throughout the metal. Chills and Chaplets: Indications related to internal casting supports.
: Caused by the contraction of metal during solidification. These appear as dendritic or network-like patterns on the surface during magnetic particle testing. Category III: Inclusions Astm E125 Reference Photographs Pdf
ASTM E125 remains an indispensable asset for the nondestructive testing of ferrous castings. By establishing a universal visual language for magnetic particle indications, it eliminates guesswork between foundries, third-party inspectors, and end-users. When implementing this standard, always ensure your quality department is equipped with both the current text PDF for procedural compliance and the official, high-resolution ASTM reference adjunct photographs for accurate engineering evaluations.
ASTM E125, "Standard Reference Photographs for Magnetic Particle Indications on Ferrous Castings," provides 31 visual examples to assist inspectors in identifying and classifying discontinuities in ferrous castings. The standard is used for consistent evaluation, training, and documentation of magnetic particle test results. The official reference photographs and standard can be accessed on the ASTM International website. Astm E125 Reference Photographs.pdf - Facebook
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This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. ASTM standards are copyrighted materials
ASTM E125 is a standard developed by ASTM International. It consists of a set of reference photographs that illustrate various types and degrees of discontinuities revealed by magnetic particle inspection (MPI) on the surfaces of iron and steel castings. Scope and Purpose
– Visual representations of internal cavity shrinkage that surfaces during testing.
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: Match the size, concentration, and frequency of the actual indications against the standard photographs. If you cannot distinguish between a Level 2
Accepting or rejecting the part based on the project's specific engineering requirements. Conclusion
Engineering specifications and purchase orders often dictate a maximum acceptable severity level (e.g., "Linear discontinuities shall not exceed Severity Level 2 per ASTM E125"). Classification of Discontinuities in ASTM E125
, there is a significant technical caveat. ASTM International traditionally produces these reference photographs as high-quality, physical photographic glossies. This is because digital compression in a standard PDF can obscure the fine details of a magnetic particle indication, potentially leading to misinterpretation.