Designed for research and control aerodisperse contaminants (aerosols) in air or other gases, for the occasional periodic sampling.
AFA filters are made of various modifications with respect to the method of analysis
Hi,
From Radioactive Aerosols – Chernobyl Nuclear Power Plant Case Study by Boris I. Ogorodnikov, http://media.johnwiley.com.au/product_data/excerpt/0X/35273266/352732660X-1.pdf
...All scheduled samplings were carried out with analytical filters AFA RMP-20
or AFA RSP-20 made of Petryanov fibrous polymeric materials. The use of RSP
filters is preferable, as their main filtering layer is made of ultrathin perchlorovinyl
fibers with a diameter of about 0.5 µm. This provides for entrapment of aerosols
in the front layer and allows measurement of radioactivity without the need for a
correction due to the absorption of alpha-particles by fibers....
It seems to me that this monomer is applied to the fibers of the filters in the production phase. Such a procedure is described in: Equipment for modifying fibres by gas phase gamma-radiation graft polymerization by Babkin et.al. in Fibre Chemistry, 1974 - Springer: http://link.springer.com/article/10.1007%2FBF00547094?LI=true#page-1. See page 2 of the preview.
The monomer is grafted on the fibers in a low vacuum cell under Co60 irradiation (2Mrad). Whether this could be a factor contributing to your problem you mentioned elsewhere, is hard to say.
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