TY  - RPRT
TI  - NIST calibration services for gas flow meters : piston power and bell prover gas flow facilities
AU  - Wright, John D
AU  - Mattingly, George E
PY  - 1998
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST SP 250-49
DO  - 10.6028/NIST.SP.250-49
ER  -