@misc{62331,
  author = {Gary Kramer and John Travis and C Faison},
  title = {NIST Handbook 150-21 National Voluntary Laboratory Accreditation Program Chemical Calibration Certifiers of Spectrophotometric NTRMs},
  year = {2000},
  month = {2000-02-26},
  publisher = {Handbook (NIST HB), National Institute of Standards and Technology, Gaithersburg, MD},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=905667},
  language = {en},
}