HANDHELD PARTICLE COUNTERS. USE AND APPLICATIONS IN HEALTH & SAFETY MANUFACTURING. AVAILABLE FROM. With optical particles counters (OPCs), the principle of laser light scattering is used to simultaneously measure particles in various size ranges.
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USE AND APPLICATIONS IN
HEALTH & SAFETY
With optical particles counters (OPCs), the principle of laser light scattering is used to simultaneously measure particles in various size ranges.
Kanomax OPCs from SKC are available with either 3 or 5 channels.
Each channel represents a size range in which total particle numbers are measured, stored, and displayed on the LCD screen.OPTICAL PARTICLE COUNTERS
SKC Cat. No. 745-3886
SKC Cat. No. 745-3887
With CPCs, particles are passed through an alcohol bath at an elevated temperature, cooled in a condenser block, and detected by a light-scattering device.
This technology allows smaller size particles to be measured.
A CPC can measure particles as small as 15 nm.
They can detect particles as large as 1 µm in size.CONDENSATION PARTICLE COUNTERS (CPCs)
SKC Cat. No. 745-3800
1. To determine if airborne releases are occurring. an elevated temperature, cooled in a condenser block, and detected by a light-scattering device.
2. To determine if control measures are effective in reducing nanoparticle exposures.
Sampling for nanos may be done for production/quality reasons along with health and safety concerns.
Nano-enabled materials are expensive, so manufacturers do not want these materials escaping from the production process into the work environment.MEASURING NANOPARTICLELEVELS: WHY?
NIOSH recommends the use of:
a) Direct-reading particle counters
b) Filter samples with lab analysis
To obtain key particle metrics including:
What do you do with this data?
Start the investigation by measuring background levels of nanos at 3 to 5 locations.
Take measurements with BOTH an OPC and a CPC.
NIOSH field studies
background levels of
1246 to 19,500
Note any unusual
conditions in test
environment that could
impact the background
levels.EVALUATING NANOS: NIOSH EMISSION ASSESSMENT TECHNIQUE
But, you only get one particle count with this instrument
1.0 µm is the largest particle size detected.CPC VS. OPC: WHY 2 PARTICLE COUNTERS FOR NANOS?
The OPC technology allows for the measurement of total number of particles per liter of air within multiple size ranges.
It can only detect particle sizes down to 300 nm,but can detect larger particles (agglomerates) up to 5 µm.CPC VS. OPC: WHY 2 PARTICLE COUNTERS FOR NANOS?
HAZ-DUST instruments number of particles per liter of air within measure concentrations using a light scattering device and a photocell.
Particle counters use laser technology to count individual particles.ARE PARTICLE COUNTERS SIMILAR TO HAZ-DUST INSTRUMENTS?
This means 9.53 X 105 particles/air volume
FOR MORE INFORMATION ON PARTICLE
COUNTERS AND OTHER SAMPLING