@misc{1162871,
  author = {A W Hartman and T R Lettieri and Egon Marx and G W Mulholland},
  title = {Standard Reference Materials:Development of a one-micrometer-diameter particle size standard, SRM 1690},
  year = {1985},
  month = {1985-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.SP.260-95},
  language = {en},
}