Astm E155 Porosity Levels Pdf Repack Jun 2026

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

The demand for a "repack" highlights a friction point in the industry: while hardware has gone digital, the distribution of standards has struggled to keep pace in a user-friendly manner. A legitimate digital download from a standards organization can be costly and encumbered by Digital Rights Management (DRM), which may restrict usage on different devices. Consequently, users seek "repacked" versions—often unauthorized scans or digital conversions—that are easy to share, email to colleagues on the shop floor, or load onto tablets in the inspection booth. astm e155 porosity levels pdf repack

The ASTM E155 standard itself does NOT dictate pass/fail. Your engineering drawing or customer specification will say: ASTM E155 is a collection of reference radiographs

A Level 3 porosity in a 0.5-inch section looks completely different than the same nominal level in a 1-inch section. Always reference the thickness-specific plate in ASTM E155. A legitimate digital download from a standards organization

: For digital inspection, ASTM E155 text is used for terminology, but ASTM E2422 (aluminum) or ASTM E2869 (magnesium) digital reference images are required.

Appears as round or elongated dark spots. These are typically minute voids distributed throughout the entire casting.

ASTM E155 uses a system of (1 to 8) to grade the degree of a discontinuity.