Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Preparation of lab samples includes sectioning, mounting (hot and cold methods), planar grinding, polishing, heat treating, chemical etching, and e…
Office of NEPA Policy and Compliance
July 27, 2020
Estimated Read Time min
Preparation of lab samples includes sectioning, mounting (hot and cold methods), planar grinding, polishing, heat treating, chemical etching, and electrolytic etching. Specimens are then examined.
