Document 714bqynkkN3qq0GenoE5ax0pE
1 yes.
Page 2935
2 Q Okay. Could you tell the jury something
3 about those studies?
4 A In 1980, General Motors research had three
5 publications come out. They were by Williams and
6 Muhlbier. And research sponsored a study from
7 Research Triangle Park by Chalk and Carter.
8 And now, those two studies were done using
9 more sophisticated technique than Dr. Jacko and I had
10 used on our earlier studies.
11 What they basically did was they built a
12 small environmental chamber around a brake dynamometer
13 so they did not have to use room air to supply the
14 brake.
15 And as I understand it, one of the concerns
16 of the EPA was to get some better understanding about
17 longer fiber emissions from the brake since in our
18 study we could not say what length of fiber came from
19 the brake lining because there were as long fibers in
20 ambient air as there were on the brake wear debris.
21 Q Now, are you familiar with the results of