ASTM E155 provides standardized reference radiographs for evaluating porosity and other discontinuities in aluminum and magnesium castings, with severity levels ranging from 1 (least severe) to 8 (most severe). While PDFs define the inspection criteria, the essential reference plates for comparing gas porosity and shrinkage must be obtained directly from ASTM International. For the official reference images and standards, visit ASTM International.
Gas Porosity: Represented by round or elongated dark spots corresponding to minute voids distributed throughout the casting. astm e155 porosity levels pdf repack
A repack is a user-curated, reorganized version of the official standard. A high-quality repack: Gas Porosity : Represented by round or elongated
ASTM E155 is a collection of reference radiographs (X-ray images) used to evaluate the severity of discontinuities—commonly known as defects—in castings. These are not "pass/fail" rules on their own; instead, they serve as a visual yardstick that manufacturers and purchasers use to agree on what level of porosity is acceptable for a specific part. 分析测试百科网 The 8 Levels of Severity The standard classifies discontinuities into 8 levels of severity A high-quality repack: ASTM E155 is a collection