Download 分粒特性試験装置

Introduction to Tisch
Instruments
John Tisch
Tisch Environmental
TheβAttenuation method
PM2.5 Automated Dichotomous Monitor
Model SPM-612D
■Continuous PM analyzer
developed by joint patent
with Japan Science and
Technology Corporation
■Black Carbon feature
originated from work of
DRI/EPA and measurement of
OC/EC
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Features
Ambient PM2.5 fraction is emphasis of medical, epidemiological
researchers
Ambient PM10 or PM2.5 and optical black carbon can be measured
simultaneously on a continuous basis. PM Coarse is calculated and
reported as PM10 - PM2.5 = PMC
Use of virtual impactor uses two measurements of fine and coarse
particles simultaneously
Monitor’s fluorocarbon membrane filter reduces gas, moisture effect to
minimum, assures high sensitivity
Sample spots on fluorocarbon membrane filter are useful for
analyzing ion components and metal components after mass and
Carbon direct measurements
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Structure
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Virtual Impactor
PM10 and PM2.5 Simultaneously
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Validation and Calibration Device
for Particle Size-Cut Testing
Particle generator and chamber test separators
for size-cut and penetration curves
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Cut off curves
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Fig. 1
Comparison of Virtual
Impactor vs WINS Impactor.
(1-hour value)
WINS vs. VI and FRM vs. Continuous
Fig. 2.
Comparison of SPM-612D
vs FRM sampler. (24-hour
average)
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Fig. 3.
Comparison of GRIMM,
TEOM (at 50 ℃ controlled) vs
SPM-612D
(1
hour value)
Fig. 4.
Comparison of EC by carbon
monitor vs OBC by SPM-612D
(1 hour value)
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Fig.5.
Plot of continuous ambient PM measurements
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Element analysis
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Time series Chemical Compositon
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Gas and Particles
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N&S
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Winter Time Series/Chemical composition
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Summer Time series/Chemical compositoin
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Sampling time comparisons