1 |
certified reference materialReference material, accompanied by documentation issued by an authoritative body and referring to valid procedures used to obtain a specified property value with uncertainty and traceability. Example: [..]
|
2 |
certified reference materialhas had its composition certified by a recognized standardizing agency, such as the National Institute of Standards and Technology.
|
3 |
certified reference materialA gas reference standard available from VSL (formerly NMi). CRMs used to be available from U.S. EPA/NIST, but have been phased out in favor of NTRMs.
|
4 |
certified reference materialA gas reference standard available from VSL (formerly NMi). CRMs used to be available from U.S. EPA/NIST, but have been phased out in favor of NTRMs.
|
<< censored data | chain of custody >> |