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Light scattering airborne particle counter for clean spaces

Standard NumberJIS B 9921:2010
OrganizationJapanese Industrial Standards Committee
LevelNational
Status
  • MAY 1976Published
  • MAY 1979Reviewed and Confirmed
  • NOV 1984Reviewed and Confirmed
  • NOV 1989Revised
  • JAN 1995Reviewed and Confirmed
  • SEP 1997Revised
  • FEB 2003Reviewed and Confirmed
  • MAR 2008Reviewed and Confirmed
  • MAY 2010Revised
  • OCT 2015Reviewed and Confirmed
ABSTRACT
This Japanese Industrial Standard specifies a calibration and verification method for a light scattering airborne particle counter, which sucks in air and measures the size, and number or particle number concentration of particles suspended in air.