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JPS57172233A - Device for measuring benzopyrene in dust floating in atmosphere - Google Patents

Device for measuring benzopyrene in dust floating in atmosphere

Info

Publication number
JPS57172233A
JPS57172233A JP57051236A JP5123682A JPS57172233A JP S57172233 A JPS57172233 A JP S57172233A JP 57051236 A JP57051236 A JP 57051236A JP 5123682 A JP5123682 A JP 5123682A JP S57172233 A JPS57172233 A JP S57172233A
Authority
JP
Japan
Prior art keywords
benzopyrene
amount
measuring
weight
particle diameter
Prior art date
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.)
Granted
Application number
JP57051236A
Other languages
Japanese (ja)
Other versions
JPS636825B2 (en
Inventor
Tadashi Suda
Katsumi Takami
Takashi Handa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP57051236A priority Critical patent/JPS57172233A/en
Publication of JPS57172233A publication Critical patent/JPS57172233A/en
Publication of JPS636825B2 publication Critical patent/JPS636825B2/ja
Granted 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
    • G01N15/06—Investigating concentration of particle suspensions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

PURPOSE:To measure continuously and correctly the amount of benzopyrene, by measuring the particle diameter distribution of dust by using a particle counter of light scattering system, counting the density and weight of the numbers and computing the amount corresponding to each and then taking the average. CONSTITUTION:When an output signal is outputted from a dust detector 1 of light scattering system, particle diameter distribution is obtained at a signal processing circuit part 2, and the volume and weight of the measuring objective particle are counted at a counting circuit 3. The above-mentioned particle diameter distribution and the result counted at the counting circuit 3 are displayed at display parts 5 and 6. As a proportional coefficient between the density or weight of all the number of particles and the amount of benzopyrene is previously known, the amount of benzopyrene about each of them is computed at a counting circuit 4. The amount of benzopyrene in the dust floating in the atmosphere is used by taking the average of these two in order to raise accuracy, and its result is displayed digitally at a display part 7.
JP57051236A 1982-03-31 1982-03-31 Device for measuring benzopyrene in dust floating in atmosphere Granted JPS57172233A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57051236A JPS57172233A (en) 1982-03-31 1982-03-31 Device for measuring benzopyrene in dust floating in atmosphere

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57051236A JPS57172233A (en) 1982-03-31 1982-03-31 Device for measuring benzopyrene in dust floating in atmosphere

Publications (2)

Publication Number Publication Date
JPS57172233A true JPS57172233A (en) 1982-10-23
JPS636825B2 JPS636825B2 (en) 1988-02-12

Family

ID=12881308

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57051236A Granted JPS57172233A (en) 1982-03-31 1982-03-31 Device for measuring benzopyrene in dust floating in atmosphere

Country Status (1)

Country Link
JP (1) JPS57172233A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000046719A (en) * 1998-07-29 2000-02-18 Shimadzu Corp Measuring method for number of particles and particle measuring apparatus
JP2010025886A (en) * 2008-07-24 2010-02-04 Isuzu Motors Ltd Soot concentration measuring device
JP2016075674A (en) * 2014-10-07 2016-05-12 日本特殊陶業株式会社 Fine particle measurement system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000046719A (en) * 1998-07-29 2000-02-18 Shimadzu Corp Measuring method for number of particles and particle measuring apparatus
JP2010025886A (en) * 2008-07-24 2010-02-04 Isuzu Motors Ltd Soot concentration measuring device
JP2016075674A (en) * 2014-10-07 2016-05-12 日本特殊陶業株式会社 Fine particle measurement system

Also Published As

Publication number Publication date
JPS636825B2 (en) 1988-02-12

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