Document 931k31XVmONJqdOx4Eazegw6p
FILE NAME: Kelly Moore (KM) DATE: 0000 DOC#: KM023 DOCUMENT DESCRIPTION: KM Asbestos Memos
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TABLE ! 5UWARY OF AIRBORNE ASBESTOS FIBCR COUNTS
CALIFORNIA VS. CANADIAN ASBESTOS
Sample Ho
Air Sample Time_______ Minutes
FIRST TEST SEQUENCE
Canadian Asbestos (7M05)
B-08
8:26-8:36am
10
B-02 B-07 B-04
8:40-8:56am
16
8:40-9:DOam
20
8:50-9:07am
17
California Asbestos (Calidria HPO)
B-03
8:56-9:04am
8
B-06
9:04-9:19am
n
9:15-9:16am .
9:02-9:26am
24
SECOND TEST SEQUENCE
Canadian Asbestos (7M05)
A-69
2:21-2:35pm
14
A-89
2:36-3:12pm
36
A-100
2:25-3:16pm
51
California Asbestos (Calidrla HPO)
A-67
1:30-1:53pm
23
A-19 A-97
1:53-2:30pm
27
2:00-2:34pm
34
, *
Operation Description________ _ _
Airborne Asbestos
Fiber Concentration
(fibers/cc ) 5..)
By Union Carbide
By LFEU *
Personal sample. Operator mixing 4 bags of celling spray. Contained -SX of Canadian grade 7M05 asbestos, limestone. Calif, talc, kaolin clay and polystyrene aggregate. Actual handling of asbestos took about 2 minutes. Remainder of time used in wetting and mixing.
Personal sample; Operator during spray ing of Canadian containing blend. Spray ed for -10 minutes.
Personal sample. Helper wiping overspray off walls.
Area sample. In opposite end of house during spraying of Canadian containing material, between operations, and the start of the Calidrla containing materi al.
Personal sample. Operator mixing 4 bags of celling spray. Contained -4* of CaUdria HPO. Other ingredients same as for sample B-08.
Personal sample. Operator spraying texture containing HPO.
Operator mixed two bags of- HPO based material. This operation was not sampled by UCC.
Personal sample. Helper wiping overspray off walls.
3.2
0 . 6 ^ (11)
2.4(Z)
Downstream area sample (ll)during mixi
1.6
0.5
02)
0.8
0.3
(12)
0.4
2.7
0.9
T-8
(25)
'
0.5
0.2
(25)
Personal sample. Spray operator mixing 12
0.8
bags of cellirig spray containing -2.5X
Canadian grade 7M05 asbestos. More styro
foam than AM samples. Other ingredients the
same. Actual dumping took H O minutes.
Personal sample. Spray operator adjusting
1.0
sprayer and spraying second house with
ceiling texture containing Canadian asbestos.
About 27 minutes actual spraying,
Personal sample. Hiper during spraying of
0.7
Canadian asbestos containing texture.
(Second house.)
Personal sample. Spray operator mixing four
1.5
bags of ceiling spray containing -2X HPO.
(More styrofoam than AM samples.) Other
Ingredients same as B-08. Actual dumping
took -3 minutes.
Personal sample. Operator spraying one
0.9
house (H8 minutes spraying.)
Personal sample. Wiper during spraying of
0.8
HPO containing texture. (First house.)
0.5
(10)
0.7
(35)
0.6
(22)
1.1
(6)
0.3 , (22)
0.6
(22)
Samples taken on same operator with separate pumps. Actual sample times varied slightly with LFE times Shown In parenthesis.
^ Filter operated closed face by mistake.
KM 01096
TABLE II COMPARISON OF AIRBORNE FIBER SIZE DISTRIBUTION
Operation
Airborne Asbestos Concentration - Fibers/cc
Magnification -- Fiber Size --
LFE Tests 4Q0X >5y
UCC Tests
400X n o o o x 1
>5u l <5u 1
i
i
1000X >5u
Mixing Dry Spray Texture
Canadian Test #1
Canadian Test #2
2.4^ 0.5
3.2 10.9 1 4.3 0.8 1 1.6 1 1.0
UCC Sample
No.
U-08 A - 69
California Test #1 California Test #2
Spraying Texture Paint
Canadian Test #1 Canadian Test #2
California-Test #1 California Test #2
l.a< 1.1
015 0.7
0.3
2.7 1 5.0 ' 6.6 1.5 1 5.7 1 2.6
1
1
1 1
1 '
1.5 1 7 *4 | 3.31.0 1 5.5 | 1.8
1 i
0.9 2.3 | 2.3 0.9 13.5 1 1.3
i____ i
B-03 A-67
.B-D2 A-89 B-05 A-19
^ Downwind of mixing operation. ^ Includes both mixing and spraying.
KMX 02006
ZQ XW*
Sample Identification Spraying Texture Paint Containing * 5% Canadian Asbestos
(UCC Sample B-02)
Spraying of Texture Paint Containing -4% California Asbestos
(UCC Sample B-05)
*
TABL. .11 SUMMARY OF FIBER SIZE MEASUREMENTS
Measurements^ ) Grids Squares
Fiber Size
Length
Oiaineter
(u)
(m )
8
20
1
0.2
3
0.6
3
0.6
3.5
0.6
4
1
4.5
0.3
6
2.3
7
0.3
8
1
9
0.8
-10
0.2
10
1.3
25
0.2
.
Spike from particle
Cluster of fibers -0.1 to 0.2u diameter.
7
20
1.8 2.3 2.3 4 --4
-4
0.4 0.3 0.4 0.6 -- 0.6
-0.7
>10
0.5
20
1.0
25
0.6
2 Spikes from . particle -- 2p
>3
6.3
^ Area per4 square *-0.008 mm2.
Chrysotile by Diffraction
No No No No Yes No
Yes No No No No No No
Yes
No
Notes
Tapered Twisted
Yes
No
No
No
No
Size estimated
No
noIIphotogrMaph.
No
Ran off grid
square. No
Yes
No
Tapered
No
Under platelet