Penetration of Respiratory Protective Equipment by Ruthenium at Building 202-S

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Description

The four types of respirator cartridges used at the 202 S Building were tested against aerosols found at that location, and in the laboratory against non-radioactive gaseous ruthenium tetroxide. Positive penetration of two types of cartridges was shown with one process aerosol. Gaseous ruthenium tetroxide penetrated all types of cartridges tested. Leaks were found in some of the cartridges. Particle size of aerosol particles was measured by means of cascade impactor samples and electron photomicrographs. A high percentage of the aerosol particles was found to be less than 0.2 microns in diameter. Ru¹⁰³ + Ru¹⁰⁶ and Zr⁹⁵ + Nb⁹⁵ were … continued below

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22 pages : illustrations

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Gill, W. E. February 21, 1955.

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  • Main Title: Penetration of Respiratory Protective Equipment by Ruthenium at Building 202-S
  • Added Title: HW (Series)
  • Series Title: Hanford Works Reports
  • Added Title: Hanford Works Report HW-35043

Description

The four types of respirator cartridges used at the 202 S Building were tested against aerosols found at that location, and in the laboratory against non-radioactive gaseous ruthenium tetroxide. Positive penetration of two types of cartridges was shown with one process aerosol. Gaseous ruthenium tetroxide penetrated all types of cartridges tested. Leaks were found in some of the cartridges. Particle size of aerosol particles was measured by means of cascade impactor samples and electron photomicrographs. A high percentage of the aerosol particles was found to be less than 0.2 microns in diameter. Ru¹⁰³ + Ru¹⁰⁶ and Zr⁹⁵ + Nb⁹⁵ were shown to be present in the process aerosol by gamma ray spectrometer analysis. Possible causes of penetration of respiratory equipment by ruthenium are discussed and suggestions made for alleviating the problem.

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22 pages : illustrations

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  • OCLC: #
  • SuDoc Number: Y 3.At 7:22/HW-35043
  • Report No.: HW-35043
  • Accession or Local Control No: metadc1253979
  • Archival Resource Key: ark:/67531/metadc1253979

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  • February 21, 1955

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  • Dec. 18, 2021, 7:04 p.m.

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  • Aug. 12, 2022, 12:46 p.m.

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Gill, W. E. Penetration of Respiratory Protective Equipment by Ruthenium at Building 202-S, report, February 21, 1955; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc1253979/: accessed February 10, 2026), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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