TY  - RPRT
TI  - Certification of Standard Reference Material 114r Portland cement 
AU  - Stutzman, Paul
AU  - Votri, Eduarda
AU  - Toman, Blaza
PY  - 2022
PB  - National Institute of Standards and Technology (U.S.)
CY  - Gaithersburg, MD
SN  - NIST SP 260-226
DO  - 10.6028/NIST.SP.260-226
ER  -