SKC 225-367 Abrasive Blasting Sampler - Manual (Page 3)

4. For area sampling, position the Butt on Sampler to avoid cross-draft s and
direct projection of the particles into the inlet.
5. At the end of the sampling period, stop the pump and record the stop time.
Sample Shipment
1. When sampling is complete, very gently unscrew the sampler inlet and use
forceps to remove the PTFE O-ring.
2. Using forceps, carefully remove the fi lter from the sampler.
3. Package for shipment as directed by the method or laboratory.
4. Ship samples with pertinent sampling information to an accredited laboratory
for analysis.
Analysis
Dependent upon the hazard of interest, samples taken with the Butt on Sampler
can be analyzed using gravimetric analysis, analytical techniques such as x-ray
fl uorescence, atomic absorption (AA), or inductively coupled plasma (ICP).
Growth culture, microscopy, and other assays may be used for the determination
of fungal spores, endotoxin, and bacteria.
If gravimetric analysis is used, weigh the fi lter and subtract the preweight from the
postweight. The net weight will be the dust collected.
Using the Button Sampler as an Abrasive Blasting
Sampler for Heavy Metals
‡
SKC has designed a protective shield for the Butt on Sampler for use when sampling
in abrasive blasting environments. The shield protects the fi lter from shredding
or being overloaded by large particles thrust onto the sampler during
blasting. Tested by the U.S. Military during recent abrasive blasting operations, the
Butt on Sampler with protective shield (Abrasive Blasting Sampler for Heavy
Metals) withstood very high particle concentrations and provided recoverable
samples and meaningful exposure information. The shield is very easy to use,
simply push it onto the sampler inlet and sample (see Sampling).
‡ The Butt on Sampler with shield is not suitable for sampling silica. While silica is commonly found in
abrasive blasting environments, sampling for silica using OSHA Method ID 142 requires a cyclone.
Using the Button Sampler to collect Inhalable
Bioaerosols
The patented SKC Butt on Aerosol Sampler provides superior collection of
inhalable particles including bacteria and fungal spores. Use the Butt on Sampler
with a 25-mm membrane fi lter such as MCE or PVC to collect bioaerosols for
viable or non-viable analysis. Using SKC gelatin fi lters with the Butt on Sampler
increases the survival of stress-sensitive microorganisms during sampling. The
Butt on Sampler is used with a sample pump capable of 4 L/min for personal
inhalable particulate sampling following the ACGIH/ISO criteria.
Note: Gelatin fi lters dissolve when placed on agar.