: Some distributors offer the option to purchase a printed edition of the document along with a PDF for immediate download at a package price.
The most authoritative source is ASTM International directly. Reference radiographs for E155 inspection (Volume I) are available as adjunct RRE015501, which includes 13 plates covering discontinuities in aluminum-alloy castings and 10 plates for magnesium-alloy castings.
ASTM E155 evaluates defects by assigning them specific severity levels, usually ranging from to Level 8 (highest allowable defect volume) . Grading the Severity
According to ASTM E155, porosity levels are classified into five distinct categories, each representing a different level of porosity. The classification is based on the size and distribution of pores within the material. The five porosity levels are: astm e155 porosity levels pdf repack
The standard is structured into two volumes:
Deducted half a star because you still need a lightbox and film for true certification. But for practical, rapid, comparative porosity grading, this is the best tool available.
Which (aerospace, automotive, or industrial) are you manufacturing for? : Some distributors offer the option to purchase
for specific industries (like Aerospace). Share public link
The Official Transition to Digital (ASTM E155 Digital Reference Radiographs)
: Level 1 represents the smallest/least amount of porosity, while Level 8 represents the most severe. Grading Categories : Porosity is usually categorized into: ASTM E155 evaluates defects by assigning them specific
Therefore, your contract or purchase order should include explicit language such as:
Porosity—the formation of small voids or gas pockets within a casting—is the number one reason for part rejection. ASTM E155 breaks porosity down into , each with its own severity scale.
: Each reference plate illustrates discontinuities within a 2-by-2-inch area. The evaluation is performed on comparable areas of the casting radiograph.