@misc{73616,
  author = {S Liu and George Kelly},
  title = {A Method of Test for Tracer Gas Test of an Outdoor Furnace Designed for Installation Without a Flue Pipe},
  year = {1998},
  month = {1998-11-01},
  publisher = {NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=860773},
  language = {en},
}