TY  - RPRT
TI  - Specifications, tolerances, and regulations for commercial weighing and measuring devices 
PY  - 1961
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS HB 44e2-1961
DO  - 10.6028/NBS.HB.4e2-1961
ER  -