This repack is intended for:
To ensure your facility remains compliant during audits (such as AS9100 or NADCAP certifications), observe the following practices when working with ASTM E155 porosity levels:
A persistent pain point in the foundry industry is engineering prints that vaguely state "Free of Porosity per ASTM E155". Without citing a specific severity level (e.g., Grade A vs. Grade B), this leaves too much room for subjective interpretation and can result in scrapped parts or delayed PPAP approvals. Utilizing Industry Resources for Compliance
ASTM E155 Discontinuity Levels Guide | PDF | Materials - Scribd astm e155 porosity levels pdf repack
Implementing ASTM E155 porosity levels within your inspection workflow requires clear engineering drawings that call out acceptable limits per zone. Utilizing a consolidated PDF data package or repack simplifies this process, ensuring that designers, foundrymen, and NDT inspectors all speak the same language regarding casting quality.
ASTM E155 is fundamentally a visual standard. Historically, it required buying actual film plates from ASTM International. Today, digital reference radiographs (ASTM E2422 for digital aluminum inspections) are standard.
: Evaluation is typically done within a 2-by-2 inch (51 by 51 mm) unit area. This repack is intended for: To ensure your
"Blind porosity" (viods open to only one surface) can trap cleaning solutions, leading to corrosion or bubbling during secondary treatments like powder coating. Digital Inspection Standards
Because a standard PDF or compressed image cannot replicate the pixel depth and dynamic range required for NDT inspection, ASTM created (Standard Digital Reference Radiographs for Inspection of Aluminum Castings). This is the digital equivalent of ASTM E155, consisting of uncompressed, high-bit-depth digital images (often stored in TIFF or DICONDE formats) rather than a simple document text file. 2. The Misconception of "PDF Repacks"
Developed by the ASTM International Committee E07 on Nondestructive Testing, ASTM E155 defines standard reference radiographs used to evaluate the type and severity of casting defects. The document covers two standard section thicknesses: ) ) Historically, it required buying actual film plates from
If a casting varies in thickness, inspectors cannot simply use the same grading scale for the entire part. The standard outlines how to adjust severity levels for different casting thicknesses.
| Feature | Standard PDF | Repacked PDF | |---------|--------------|--------------| | Searchable text | ❌ Often not | ✅ Yes (OCR applied) | | Bookmarked sections | ❌ Rarely | ✅ Porosity levels bookmarked | | High-contrast images | ❌ Scans degrade quality | ✅ Digitally enhanced radiographs | | Thickness correction table | ❌ Missing | ✅ Embedded as Appendix A | | Printer-friendly layout | ❌ 200 pages of fluff | ✅ Condensed to 15 essential pages |