TY  - RPRT
TI  - Specifications, tolerances, and regulations for commercial weighing and measuring devices 
PY  - 1955
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS HB 44e2-1955
DO  - 10.6028/NBS.HB.44e2-1955
ER  -