Document ymaGee8v1X5rqXaoen4Y4oD1X

1 of the sample and the technique that he used, I Page 2973 i 2 couldn't answer that. 3 Q I guess I will ask you now, you have 4 mentioned this a couple of times about the OSHA 5 fibers, isn't it true that the EPA counts fibers at .5 6 microns, not five microns? 7 A EPA uses more than one system. 8 With electron microscope they use one 9 technique, and with optical microscopy it is, as far 10 as I know, only five microns is the size range. 11 Q With the electron microscopy they measure .5 I 12 microns? 13 A Yes. 14 Q Because they are concerned about the smaller 15 fibers? 16 A Whether they are concerned about them, they 17 certainly take measurements, yes. 18 Q And you also showed us a brief video of your 19 hot spot testing, the data that was, what, the late 20 1980s or something? 21 A The 1987.