NIST supports accurate and compatible measurements by certifying and providing over 1200 Standard Reference Materials® with well-characterized composition or properties, or both. About NIST SRMs.

NIST traceable calibration certifies that the lab or manufacturer in question is equipped and able to calibrate equipment to National Institute of Standards and Technology (NIST) standards and that products by that manufacturer match NIST-maintained measurement standards.

Resistance standards traceable to NIST provide references for measurements of current at levels from 3000 A to below 20 fA and are used to support a wide variety of impedance, temperature, strain, and power measurements.

The NIST standard bullets, Standard Reference Material (SRM) 2460, and standard cartridge cases, SRM 2461, have been developed as reference standards for forensic laboratories to help verify that equipment used to acquire images of the firearm toolmarks is operating properly and to facilitate measurement traceability ...