: Ensure you are using the correct reference plate for the material (Aluminum or Magnesium) and the section thickness of the casting being inspected.
The serves as the primary benchmark for the radiographic inspection of aluminum and magnesium castings. By providing a series of reference radiographs, it allows inspectors to categorize and grade internal discontinuities, ensuring that cast components meet the rigorous safety and performance requirements of industries like aerospace and defense. What is ASTM E155? astm e155 porosity levels pdf repack
: Refer to the engineering drawing or contract specifications. For example, a "Level 2" might be acceptable for a structural aerospace part, while a "Level 5" might be fine for a decorative bracket. Important Note on "PDF Repacks" : Ensure you are using the correct reference
For digital radiography, professionals must refer to ASTM E2422 (aluminum) or ASTM E2869 (magnesium) rather than the physical films of E155. Porosity and Discontinuity Types What is ASTM E155
While the convenience of a "pdf repack" is undeniable for the end-user, it introduces significant technical and legal risks. The primary technical concern is image fidelity. ASTM E155 relies on grayscale resolution that standard PDF viewers or compressed file formats (like those used in unauthorized "repacks") may distort. A "repack" often involves compression to reduce file size. During this process, critical detail in the radiographic images can be lost through artifacts or pixelation.
Unauthorized redistribution of ASTM standards is copyright infringement. However, you can create your own personal repack legally if you purchase the standard from ASTM International or a reseller (like IHS Markit or Techstreet).