Document Jrkaa21ObyMDO0wLb54ay5R82
AR226-1999
TABLE 1.
Compariso)1 of Tenax Tubie (T.T.5 and Aquecus-Imp!nger (A.,1.)
C-8 in Ailr Detenninaticins .
Sampling Location
No. of
Sample Sets Collected*
Avg. T.T. C-8 Determination
(mpb)
B-163, Float. Tank, No. 2
7
Clean Room**
B-163, No. 2 T. D. Dryer, No. 2
10
Clean Room**
B-163, No. I Clean Room**
4
B-163, No.t Coagulator,
13
2nd Floor
B-163. Flake Hopper
6
B-162, Fine Powder Dryer Room
6
B-163, Tray Conveyor Walkway
6
B-163, Oyen Control Room
6
B-163, Trayout
4
B-163, No. 1 Coagulator,
7
1st Floor
B-163, No. 1 Blender
12
2.50
2.14
4.31 0.46
0.53 0.27 <0.06 <0.06 <0.06 0.15
0.12
Avfl. A.I. C-8
Determination (mpb)
Ratio T.T. Avg./ A.I."Avg.
0.41
6.1
0.54
4.0
1.83
2.4
0.35
1.3
0.43 0.25 0.06 0.03 0.05 0.20
1.2 1.1
~1.0 1.0 ~1.0
0.8
0.19
0.6
* Each sample set consists of one Tenax tube result and one aqueous-impinger result. Both samples in each set were collected side by side so their results could be directly
compared.
** According to the paired-t test (p :s 0.05), a statistically significant increase in C-8
levels using the Tenax tube technique is observed only for those samples collected in
the FEP Clean Rooms. The two techniques yielded equivalent C-8 results for all other
sampling locations.
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EID079286