National Institute of Standards and Technology

The Articles of Confederation, ratified by the colonies in 1781, provided:

Following September 11, 2001, NIST conducted the official investigation into the collapse of the World Trade Center buildings.

As part of its mission, NIST supplies industry, academia, government, and other users with over 1,300 (SRMs). These artifacts are certified as having specific characteristics or component content, used as calibration standards for measuring equipment and procedures, quality control benchmarks for industrial processes, and experimental control samples.