TY  - BOOK
AU  - Faison,C.D.
AU  - Parris,R.M.
AU  - Rasberry,S.D.
ED  - Estados Unidos. National Institute of Standards and Technology^pUS
ED  - Estados Unidos. National Voluntary Laboratory Accreditation Program
ED  - Estados Unidos. National Voluntary Laboratory Accreditation Program
TI  - Chemical calibration: providers of proficiency testing
T2  - Handbook, no.<150-19> no. 150-19
PY  - 1999///
CY  - [s.l.]
PB  - NIST
ER  -