ASTM International Standard Specification for Certification of Metallic Materials ASTM E3315-21

This specification covers the requirements for material certifications, specifically including materials under the jurisdiction of Committee E29. It defines terminology related thereto, including melt mill, traceability, heat number vs. lot number, certificate of compliance, and specifies the information to be included on material certifications. Hence the document is an authoritative reference to dispel the incorrect interpretations put forth by unknowledgeable segments of the metals industry.