TY  - RPRT
TI  - A procedure for establishing traceability of gas mixtures to certain National Institute of Standards and Technology SRM's 
AU  - Hughes, E E
AU  - Mandel, J
PY  - 1989
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NBS IR 81-2227r1989
DO  - 10.6028/NBS.IR.81-2227r1989
ER  -