EP0882223A4 - - Google Patents

Info

Publication number
EP0882223A4
EP0882223A4 EP97946502A EP97946502A EP0882223A4 EP 0882223 A4 EP0882223 A4 EP 0882223A4 EP 97946502 A EP97946502 A EP 97946502A EP 97946502 A EP97946502 A EP 97946502A EP 0882223 A4 EP0882223 A4 EP 0882223A4
Authority
EP
European Patent Office
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97946502A
Other versions
EP0882223A1 (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/743,555 external-priority patent/US6512583B1/en
Priority claimed from US08/743,554 external-priority patent/US6005662A/en
Application filed filed Critical
Publication of EP0882223A1 publication Critical patent/EP0882223A1/en
Publication of EP0882223A4 publication Critical patent/EP0882223A4/xx
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G01N15/0205—Investigating particle size or size distribution by optical means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/06—Investigating concentration of particle suspensions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N2015/0042—Investigating dispersion of solids
    • G01N2015/0046—Investigating dispersion of solids in gas, e.g. smoke
    • G01N2015/0049—Investigating dispersion of solids in gas, e.g. smoke of filaments in gas

Landscapes

  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Dispersion Chemistry (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Treatment Of Fiber Materials (AREA)
EP97946502A 1996-11-04 1997-11-03 Device for measuring the concentration of airborne fibers Withdrawn EP0882223A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US743555 1996-11-04
US08/743,555 US6512583B1 (en) 1996-11-04 1996-11-04 Apparatus and method for the dimensional measurement of airborne fibers
US743554 1996-11-04
US08/743,554 US6005662A (en) 1996-11-04 1996-11-04 Apparatus and method for the measurement and separation of airborne fibers
PCT/US1997/020047 WO1998020320A1 (en) 1996-11-04 1997-11-03 Device for measuring the concentration of airborne fibers

Publications (2)

Publication Number Publication Date
EP0882223A1 EP0882223A1 (en) 1998-12-09
EP0882223A4 true EP0882223A4 (en) 1999-01-07

Family

ID=27114167

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97946502A Withdrawn EP0882223A1 (en) 1996-11-04 1997-11-03 Device for measuring the concentration of airborne fibers

Country Status (12)

Country Link
EP (1) EP0882223A1 (en)
JP (1) JP2000503405A (en)
KR (1) KR19990072187A (en)
AU (1) AU736174B2 (en)
BR (1) BR9706914A (en)
CA (1) CA2239857A1 (en)
CZ (1) CZ188098A3 (en)
HU (1) HUP0001651A3 (en)
NO (1) NO983075L (en)
PL (1) PL327503A1 (en)
TR (1) TR199801215T1 (en)
WO (1) WO1998020320A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4787645B2 (en) * 2006-03-28 2011-10-05 倉敷紡績株式会社 Fibrous particle measuring method and apparatus
JP4952261B2 (en) * 2007-01-12 2012-06-13 株式会社大林組 Concentration measuring device, concentration measuring system, and concentration measuring method
KR102157179B1 (en) * 2019-01-25 2020-09-18 주식회사 이노서플 Measuring System for Particulate Matter in Air
FR3119236B1 (en) * 2021-01-22 2023-12-22 Brgm On-site detection system for asbestos particles in construction materials

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3740148A (en) * 1970-12-08 1973-06-19 Research Corp Portable dust analyzer
US4249244A (en) * 1978-05-03 1981-02-03 Ppm, Inc. Electro-optical system and method and apparatus for providing automatically-compensating, traceable calibration and zeroing for light scattering devices
US4940327A (en) * 1988-10-25 1990-07-10 Trc Companies Inc. Method and apparatus for real time asbestos aerosol monitoring

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1316752A (en) * 1970-02-12 1973-05-16 Atomic Energy Authority Uk Apparatus for analysing suspended particles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3740148A (en) * 1970-12-08 1973-06-19 Research Corp Portable dust analyzer
US4249244A (en) * 1978-05-03 1981-02-03 Ppm, Inc. Electro-optical system and method and apparatus for providing automatically-compensating, traceable calibration and zeroing for light scattering devices
US4940327A (en) * 1988-10-25 1990-07-10 Trc Companies Inc. Method and apparatus for real time asbestos aerosol monitoring

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9820320A1 *

Also Published As

Publication number Publication date
AU5165898A (en) 1998-05-29
BR9706914A (en) 2000-01-04
KR19990072187A (en) 1999-09-27
JP2000503405A (en) 2000-03-21
AU736174B2 (en) 2001-07-26
CA2239857A1 (en) 1998-05-14
WO1998020320A1 (en) 1998-05-14
TR199801215T1 (en) 1999-02-22
CZ188098A3 (en) 1998-11-11
HUP0001651A2 (en) 2000-09-28
PL327503A1 (en) 1998-12-21
EP0882223A1 (en) 1998-12-09
NO983075L (en) 1998-08-28
HUP0001651A3 (en) 2003-01-28
NO983075D0 (en) 1998-07-02

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Legal Events

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