This repack is intended for:
Printing the PDF pages without size verification. Fix: Print a scale marker (e.g., 25 mm bar) and measure before comparing.
Fully searchable, high-resolution PDF copies of the textual guidelines, material specs, and testing methodologies.
Designers often apply different levels to the same part; critical thin "arms" may require Level 1, while thicker "truck" areas might allow Level 3.
: Appears as round or elongated dark spots, often minute and distributed throughout the casting.
: If using digital formats, ensure your viewing monitors meet the minimum luminance and resolution standards required for diagnostic NDT interpretation.
: Ensure engineering drawings specify the exact ASTM E155 volume, material type, discontinuity type, and maximum allowable severity level.
The guide uses a set of physical reference plates (radiographs) that show varying degrees of severity for specific defects. In a typical inspection, a technician compares a live X-ray of a casting to these standard levels to determine if the part is "pass" or "fail" based on the project's engineering requirements.
The standard covers:
