TY  - RPRT
TI  - Preparation and Standardization of 229Th SRM 4328d 
AU  - Colle, Ronald
AU  - Laureano-Perez, Lizbeth
AU  - DiGiorgio, Morgan
PY  - 2023
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST SP 260-235
DO  - 10.6028/NIST.SP.260-235
ER  -