Document K6GXJzjYkb7zVrz151ZEGzgN6
1 effective as an enclosure with the vacuum system.
Page 2113
2 Q You also showed us examples on the tape of
3 dust suppression and enclosure.
4 Is that another concept that Dr. Merewether
5 discussed in the medical and scientific literature
6 back in 1930 as it relates to the use of asbestos?
7 A It is. It is the same principle. We are
8 still applying the same principles described after the
9 turn of the century to control the dust to control the
10 occupational exposures.
11 Q Have the industrial hygiene concepts and
12 principles changed in any fashion between 1930 and the
13 time period in the '70s when you said these methods
14 were available?
15 A Well, the same basic principles still
16 apply. We have evolved, hopefully, better equipment
17 in some ways, but the same principles in terms of how
18 you do it, they are the same principles.
19 MR. IGNATOWSKI: You can show the rest of
20 the tape, please, Mr. Shellenberger.
21 Q This is a brush-off procedure?