@misc{1167156,
  author = {Carl W Coblentz and Paul R Achenbach},
  title = {Performance tests of two cleanable impingement type air filters Airsan types AF1-30 and AF2-30 ::manufactured by Air Filter Corporation Milwaukee, Wisconsin},
  year = {1958},
  month = {1958-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.RPT.5991},
  language = {en},
}