Astm E155 Porosity Levels Pdf Repack |top| Jun 2026
ASTM E155 provides standard reference radiographs classifying aluminum and magnesium casting discontinuities into eight severity levels, where Level 1 denotes minimum, and Level 8 maximum, porosity. These levels are utilized for grading castings in acceptance standards such as ASTM B686, which requires specific ratings for Grades B, C, and D. For official standards and technical documents, visit ASTM International www.qgdigitalpublishing.com
ASTM E155 is a standard published by ASTM International, providing a set of reference radiographs that illustrate the types and degrees of discontinuities that may be found in aluminum-alloy and magnesium-alloy castings. Think of it as a visual dictionary of defects, serving as a benchmark to answer a critical question: is a defect severe enough to reject a casting?
Provide side-by-side visual aids on the factory floor so NDT technicians can easily compare real-time X-ray results against accepted limits.
When no other applicable document exists and by agreement between purchaser and manufacturer, ASTM E155 may be used for other material thicknesses as well. astm e155 porosity levels pdf repack
It is important to note that the official ASTM E155 standard is copyrighted by ASTM International. The most reliable, up-to-date, and legally compliant way to use these standards is to purchase the official ASTM E155 documentation.
May tolerate porosity up to Level 5 or higher .
Historically, ASTM E155 was distributed as physical film or large, high-quality prints enclosed in a binder. This ensured that the interpreter was viewing the image with the exact resolution and dynamic range intended by the standards committee. However, as the industry transitioned to Digital Radiography (DR) and Computed Radiography (CR), the need for digital reference standards became urgent. Think of it as a visual dictionary of
A common ASTM E155 interpretation guide (PDF format) provides a condensed version of the 8 levels of defects. These documents are crucial because they offer:
The Indispensable Visual Rosetta Stone: A Deep Dive into the ASTM E155 Porosity Repack
The term “PDF repack” reflects a legitimate need for consolidated access to both the standard document and reference images. However, professionals should understand that the written standard and reference radiographs are separate products. For traditional film radiography, physical reference radiographs remain necessary. For digital radiography, ASTM E2422 provides the appropriate digital reference images. It is important to note that the official
ASTM E155 porosity levels are an essential aspect of non-destructive testing and quality control. PDF repack is a critical process that helps to optimize and compress PDF files, making it easier to share and store ASTM E155 reports and documentation. By understanding the importance of PDF repack and following best practices, organizations can ensure that their ASTM E155 porosity levels are accurately evaluated and reported.
A new physical set of ASTM E155 costs upwards of $800-$1,200. A licensed digital repack (or even a well-done internal scan) is often a fraction of that. For a small job shop that only casts aluminum, buying the full physical set is overkill. Buying just the Porosity repack is efficient.
Cleaned-up PDF summaries listing the exact spatial distributions and size limitations allowable for each severity level.