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The "Mushroom Standard."
Officially titled Standard Reference Photographs for Inspection of Aluminum Alloy and Magnesium Alloy Castings, ASTM E125 is essentially a visual dictionary.
When you X-ray (radiograph) a metal casting, you often see shadows and splotches. Are those shadows a critical structural flaw, or just harmless pores? ASTM E125 provides a set of standardized images to compare your X-ray against. astm e125 reference photographs pdf free download
The 8 Categories of Flaws: The standard categorizes defects into 8 distinct groups. Without the reference photos, these are just words:
If you just need to understand what these flaws look like and don't need the official legal document for a contract:
Ask your quality department. Most ISO 9001 or ASME-certified foundries already own a site license for ASTM standards. The PDF is likely sitting on a shared network drive. Instead of risking malware on shady file-hosting sites,
Type II: Non-Metallic Inclusions (Stringers)
Type III: Shrinkage
Type IV: Seams and Laps
Type V: Porosity
Type VI: Non-Relevant Indications