Document 5DaG9EL9QovMXXkYQ9nv0jzN8
FILE NAME: Asbestos Cement Pipe and Sheet (ACPS) DATE: D DOC#: ACPS0 KhMENT DESCRIPTION:hZZ^^
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Research & Engineering Center
Marc;h 23, 1972
. M. Fenner - Denver
SPECIAL OUST SURVEY
TRANSITE PIPE FIELD OPERATIOr~s
Personal dust samples 1"ere taken by the memhrane Fi1 ter method on several fie1d op:'t,tions that are performed on TRANSITE Pipe. The initial tests were conducted on ~arch 9, 1972 located outside hetween PD #1 Building and llev1 Business Building. tt1octerrHe to strong
drafts were present prirriari1y in a direction aviay from the operation. Ho\'1ever, freque:nt
swirling winds contaminated the sample area.
Bob Anderson and Vinco Pacifico performed the operations and Larry Jarema and Jo.- Macko conducted the.sampling.
Three different sized pipes were used during the tests; 4 in. Telephone Duct, 6 in. CL 150 Water Pipe, and 8 in. CL 2400 Se11er Pipe. ihe samples v,ere of very short duration, cover11r; the time required for a single operation. The test results are listed below.
.._, ( Operation
Sample Time,
Pine Size
min.
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Skill Saw Cutting
Hand Rasping
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Power Machining Manua1 Machining
Power Cutting with Carbide Tip Blade
hanmer and Chise1 (Tapping for Sewer Saddle) Hand Sa.-dng
4 in, 6 in.
8 in.
6 in. 8 in.
6 in. 8 in.
4 in. 6 in. 8 in.
4 in, 6 in.
8 in.
8 in.
4 in.
4.2 ~o
4.6 20 4.8 20
5.0 4.6
4. 1
3.4
3.() 3.0 4.5
3.6 6.0 5.0
6.6
5.0
123.0
129 .0 96.0
4. ,'
2' .9' ~;...s-
8.2 20.0
28.0 24.0
13.7
3.6 20.0
6.9 5.5
9,9
19.0
3.3
MTB004039
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~- M. Fenner March 23, 1972
Page Tvm
Due to the sampling duration, the va1ues listed above are not truly rerre~entative of the average concentration. Therefore, specific operations were re-tested on ~arch 17, 1972 for the purpose of repeating the operations in order to obtain a sufficient sampling time.
The results of this survey are 1isted belo\'I.
2.Jl~ ration
Pm~er Machining
Manual Machining
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-P~ip-e--S-i-z-e
6 in. 8 in.
4 in.
6 in. 8 in.
Sompl ing Time 1 min.
20 20
20 20 20
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1.2 o.&
4. l 0 11"'
2,5 O,"r 3.3 1. .,_
2.5 o.q.
Hand Rasping
6 in.
20
8 in.
20
Hammer and Chisel (Tapping for Sewer Saddle) 8 in.
20
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(" } .~ ..u.kw~ E. J. Bulava
2.5 l.b 2,9 I . 1---
2.5 I . 1--
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G. L. Sria1low - Denver R. C. Anderson
MTB004040