Allergenco time lapse inpaction sampler in field use (C) Daniel FriedmanForensic Microscopy, Particle Identification & IAQ Investigation Field Equipment Specifications
     

  • Table of Airborne Particle Sampler Trace Dimensions for Various Air Test Sampling Devices
    • List of indoor air test sampling equipment used to collect particle samples for lab analysis.
    • Calibration information for common indoor air sampling equipment
    • Dimensions, air flow rates in liters per minute, and other air sampler equipment properties
  • POST a QUESTION or READ FAQs about the properties of test equipment used in indoor air quality investigations for particle hazards such as asbestos, dist mites, dust mite fecals, fiberglass, house dust, insect fragments, mold, pollen, road dust, and other indoor dust and particle components.
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Airborne Particle Sampler Trace Dimensions for Various Air Test Sampling Devices: this document summarizes the physical properties of ndoor air quality testing & sampling equipment and devices and reviews the methodology for their use. This is a summary of equipment used for investigating indoor air quality particles (mold, pollen, house dust, insect fragments, dust mites, fiberglass fragments, etc.) found in the the indoor environment. We include key air test equipment parameters such as particle trace dimensions that are used in calculations of percentage of trace analysis and airborne particle concentration levels. Our page top photo shows the Allergenco Mark II time lapse impaction air sampler in use near an indoor air cleaning machine.

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Table of Airborne Particle Sampler Trace Dimensions for Various Air Test Sampling Devices

IAQ Laboratory SOP(Standard Operating Procedure) Indoor Air Monitoring and Testing Equipment - Particle Sampler Trace calculations recap. This document supports our General Lab Procedures and Particle Trace Count Procedures. See AIRBORNE PARTICLE ANALYSIS METHODS

Sampling Device

Trace length

Nom. Trace ™ Width

Flow Rate in LPM

Pump timer

Calibrated


Sampling Cassettes used with IAQ Sampling Pumps (Microscope slides, adhesive tape, and other collection media are also used)

Air-O-Cell™ disposable cassette (Zefon

14.4mm

1.1mm

15
recommended rate

2-10 min. typical

See indiv. Pump device

d50=2.6u

Allergenco D™ disposable cassette (EMS)

14.0mm nominal

1.1 mm nominal

15 lpm recommended, (operates at 5-20 lpm)

1-10 min. typical

d50=1.7u

Cyclex-D™ disposable cassette

Round media

 

<20 lpm

2-10 min typical

d50=0.8u

Micro 5™ disposable cassette

Round media

5 lpm

5 min. typical

1" tube if using Gilair-5 pump d50=0.8u

25mm MCE filter cassette

25mm MCE filter

Filter area

Various

0.45u (F25045)

37mm MCE filter cassette

37mm MCE Filter

Filter area

various

0.8u (F37080)

Bi-Air™ disposable cassette

Dual trace 25mm MCE filter

Trace area

3.5 lpm, ™ ™

10 min grab, 2-4-hr. TWA sample

 

Adhesive tape-clear ™

Surface particle sampling mold or settled dust/debris

Scotch™ Gloss Finish Multi Task Tape 34-8507-5365-7

Sterile swab

Culture collection

IAQ Air Sampling Pumps and Particle Collection Equipment

Allergenco Mk3™ time lapse slit-impaction sampler

14.5mm, up to 12 traces/slide

1.1mm

15 nom. lpm

1min to 24-hrs ™ multi-trace

5/17/01
15.1 factory

Burkard PAS#1

14.0mm

2.0mm

10 lpm

0-9 min

Factory d50=2.52u

Burkard PAS#2

14.0mm

2.0mm

10 lpm

0-9min

Factory

Intermatic (used with EMS Megalite below)

NA

NA

NA

1 second to
24 hours

Factory

EMS Megalite Pump w/IAQ Options Ser #7038, Mod. 6025SE-V

NA

NA

3-30 lpm

Separate duplex timed receptacle

Factory, pump-mounted rotameter, Lab bubble tube

10/10/05 0 lab<

Gil-Air-5-RC pump

NA

NA

<1-5 adjustable>

1 min to 8-hrs

1/15/04 Lab, Zefon bubble tube (ZBT) + (OD) in field at each use

RadioShack Pump

NA

NA

10 lpm

Manual on-off

Lab 10/10/2003 ™ -9/5/2005 (ZBT) in lab & (ZR) in field at each use

Notes: particle collection efficiency d50 for other common devices: (J. Tucker)

AGI-30 liquid impinger ™ 0.31; SAS Slit-to-Agar™0.67; Cyclex impactor 1.80; RCS radial impactor 4.00, Andersen N6 hole impactor 6.61, Rotorod 10.0.


Gas Detection Equipment

Sensidyne Gastec pump (gas detection)

NA

NA

50 or 100 cc/ ™ /full stroke

Manual stroke, manual count indicator

Leak test 11/16/04

8/5/2005

Draeger accuro pump (gas detection) ARUK-FO13 #1-0893171516K09 exp F013 Serial 6400000

NA

NA

100 cc/stroke

Manual, stroke completion indicator, automatic stroke counter

Leak test 11/16/2004

9/5/2005

RTCA Pump#1

Rotary vane vacuum

NA

NA

14.28

11.27 min

Lab 6/11/04 ™ total 160.94L

RTCA Pump#2

NA

NA

Tbd

Tbd

Tbd

 
Other Equipment & Specifications

Tramex

electronic moisture encounter

Delmhorst

twin-point electronic resistance moisture meter

Exergen ™

Infrared scanner ™ surface temperature

OD = flow indicator on device (subject to lab calibration)

ZR = Zefon rotameter, for field use, verified using ZBT in lab

ZBT = Zefon bubble tube (precise), multiple timed events to measure actual LPM

Factory = original calibration provided by factory or independent consultant to factory.

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