TY  - RPRT
TI  - Standard Reference Materials : Methods and procedures used at the National Bureau of Standards to prepare, analyze and certify SRM 2694, simulated rainwater, and recommendations for use/
AU  - Koch, William F
PY  - 1986
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NBS SP 260-106
DO  - 10.6028/NBS.SP.260-106
ER  -