These photographs are intended for comparison with actual magnetic particle indications found on production castings. They help manufacturers and purchasers agree on acceptance criteria for specific parts. How to Use ASTM E125 Reference Photographs
Once an indication appears, identify its type (e.g., crack vs. inclusion). Astm E125 Reference Photographs Pdf
Most types are categorized into five degrees of severity (1 to 5), where degree 1 represents the least severe condition and degree 5 the most. Porosity is an exception, usually showing only two degrees. These photographs are intended for comparison with actual
Based on the contract or order requirements, determine if the severity of the indication exceeds the established limit. Acquiring the Document identify its type (e.g.