@misc{19336,
  author = {John Wright and Vern Bean},
  title = {NIST Calibration Services for Hydrometers.},
  year = {2010},
  month = {2010-04-19},
  publisher = {Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=832342},
  language = {en},
}