Document baVByqqBovgk8b6vvyeww29mk

Page 329 1 It was published for all of the world to see 2 in 1946. And it was entitled, A Health Survey of 3 Pipecovering Operations in Constructing Naval 4 Vessels. 5 What they did was, they studied these over 6 1,000 insulators, the hands-on guys, the guys who 7 actually took the pipe and the block and mixed the 8 cement and applied it onboard ships. 9 The first thing they found was, you know, 10 gosh, these guys don't work with this stuff eight 11 hours a day, five days a week. Their use of the 12 product is intermittent. 13 And that is where we get into the peaks and 14 valleys that I talked about earlier. 15 What they did to study this question was, 16 they took dust counts in shipyards; they said, what 17 are the levels of asbestos that people are being 18 exposed to. 19 And they found that, generally, these dust 20 counts were below the then accepted TLV of five 21 million particles per cubic foot of air.