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Common Particle Identification

Category Indoor Air Quality (IAQ) Lab Services
Test Common Particle Identification

Common Particle Identification incorporates physical testing with Polarized Light Microscopy (PLM) to identify particles typically large enough to be seen by the naked eye.  Such particles are cellulose and synthetic fibers, asbestos, fibrous glass, dust mites and arthropod fragments, major minerals and skin fragments.  This test can help isolate the source for dust buildup and is routinely utilized on job sites where indoor air quality is questioned.

Sampling of bulk materials is typically performed by the glove bag technique.  Dust is commonly collected by micro-vacuuming or wipe sampling with a 4x4 inch piece of baby wipe, (no aloe or cleaners).

When "Site Standards" are taken of the various suspect materials through out the job site, the particles found in the samples can be matched to the Site Standards.  This can pin point the actual source of the contamination.                  

CAS Number 205-99-2
Test Type Single
Test Prefix
Test Benzo(b)fluoranthene
Synonym(s) 3,4-Benzfluoranthene
Method NIOSH 5506
Matrices Air (Cassettes + Tube)
Group Package PAH - Full LIst
Cinnaminson New Jersey - Corporate Lab (IH LAB 28)  100194
Huntington Beach California (LAB 33) 101650
Indianapolis Indiana (LAB 16) X
Charlotte (Pineville) North Carolina (LAB 41) X
Minneapolis (New Hope) Minnesota (LAB 10)
Toronto Ontario Canada (LAB 55)
Chromotography Type / Detector HPLC/FL-UV
OSHA PEL or Other Value in mg/m3 0.2
OSHA PEL or Other Value in µg/m3 200
OSHA PEL or Other Value in ppm N/A
OSHA or Most Relevant OEL Notes 0.2 mg/m3 - OSHA PEL TWA, CTPV Benzene-Soluble Fraction 0.1 mg/m3 NIOSH REL CTPV CycloheXane-Soluble Fraction Ca - NIOSH - Carcinogen
Sampling Instructions / Interferences Protect from light and heat. Wrap in foil, ship refrigerated (0C).
Method link
Molecular Weight - grams/mol 252.32
Reporting Limits (Field Blank Limit) ug/sample 0.31
LOQ (ug/sample based on media)/sample 0.31
Default Reporting Units ug/m3

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