@misc{1167026, author = {Carl W Coblentz and Paul R Achenbach}, title = {Performance tests of an expansible fibrous media air filter, Flanders Expansible, no. 15 ::progress report (May 1 to October 31, 1958) QMREL-M project order no. 57-26}, 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.6214}, language = {en}, }