In this article, we will break down what ASTM E155 actually specifies, how to interpret porosity levels (Level 1 through Level 5), why you need a properly formatted , and how to use these reference standards correctly in daily QA/QC workflows.
The ASTM E155 standard also provides guidelines for repacking and radiography of steel castings. Repacking involves filling the pores with a material that allows for better radiographic interpretation. The standard recommends the following:
Your report must state: "Evaluated per ASTM E155, porosity type fine, severity Level 2 maximum observed, thickness range 0.5-1.0 inch – meets Class B requirements."