Casella CEL Sampling heads for personal dust sampling - Manual (Page 7)

3. TOTAL INHALABLE SAMPLING HEADS
3.1 I.O.M. Head (Part No. P109009A)
I.O.M. Cassette, (Part No. P109010)
The I.O.M. (Institute of Occupational Medicine)
inhalable dust sampler is now firmly
established both in Europe and America. It
employs a cassette system that eliminates
direct handling of the filter paper and closely
simulates the particle collection behaviour of
the nose and mouth. Passing the flow through
a cassette prevents particulate from settling on
the inside of the head. Because the whole
cassette is weighed, this offers the additional
benefit of minimising under- sampling.
The I.O.M. Head is a true inhalable
sampler as specified in MDHS 14/3 and the
ISO/CEN criteria. It allows the collection of
many different dust fractions, either
individually, or at the same time when using
PUF foams.
When polyurethane foam (PUF) plugs are used in the inlet, it is
possible to collect two different fractions of dust at the same time, thereby
saving valuable time and money. By using the correct combination of foams it
is possible to collect combinations of Inhalable, Thoracic or Respirable dust.
02045
Sampler body
Fat "O" Ring
Casette lower half
Filter
Air Flow
Air
Flow
Casette upper half
Thin "O" Ring
Front cover
Dust cap
Figure 1: The I.O.M. sampling head assembly
Dust & Aerosol Heads
Page 7 of 24
SAMPLING HEADS AND ACCESSORIES
Users Guide