Document oNb88MOwOvXDKEJoRLMkzkJ3
FILE NAME Talc TALC DATE 1973 Sept 4
DOC TALC457
DOCUMENT DESCRIPTION Calculation of Chrysotile & Tremolite
Fibers in Commercial Talcs
3
UM
UM Manville UM UM UM Johns Manville
.
.
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Infornal
Cor espondones
IInfornal nfornal Correspondones Correspondones Correspondones Infornal Infornal
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Correspondones Corespondones
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| CONFIDEN- TLIIMIATELD DISTRIBUTION
To R. S. Lamar - & Ctr
Date September 4 1973
From V. E. Wolkodoff- D Ctr
Copies
, -
AY
Subject
PETROCRAPHIC CALCULATION OF
FAMILY FIBERS IN COMERCIAL COMERCIAL
AUGUST 20 1973
CHRYSOTILE AND TREMOLITE -
TALCS BY FDA PROPOSAL OF
1 The technique is the same as outlined to you in my
letter of August 27 1973
to 2 The samples are the same as those studied by TEM and
reported you on August 28 1973
So,
3 The results are summarized in Table No. 1
Wollert
Wollert
V. Wolkodoff
jmw
C
J. M. Sharratt
- 2 West
W. L. VanDerbeek 2 West
P. A. Martinson - 2 West
R. Hutchinson - 2. West
F. L. Pundsack
- R Ctr
S. Speil
~ R Ctr
W. C. Streib
~ R Ctr
- P. P. LeineweD beCr tr '
G. R. Bell
R Ctr ~
'.
Noteb No.o4o39k3 pp 13-27
000080
1
Table
.
PetrographicCrystallographic Determination FDA Method For Asbestos Fibers in Commercial Talc
No. y
co
Product and Reference No.
No.
_
oe Yellowstone United Sierra Montana
3 Mistron Vapor United Sierra Montana
Mistron Monomix United Sierra Montana
38
104
25
Mistron Super Frost United Sierra Montana 124
Fibrene 400 United Sierra Death Valley 108
Charles Pfizer
68
Asbestine 5X International Talc
00 Nytal 300 T. Vanderbuilt
95
190A
No. of Chrysotile
Fibers
|
0
0
89
90
1398
0
17100
22175
9. Emtal 599 Englehard
Johnson & Johnson Green Mt. Vt
_
Talce Italian
Grafite Val Chisone
7
M Cyclo
M Cyclo
13 -
14
73166-18
Std 70-34
Std 70-33
0
0
1880
0
0
Johnson & Johnson Baby Powder
73219-1
0
No. of Tremolite
Fibers .0
0
0
0
6542
0 16800 17135
|
0
0
8
~
34890
12426
;
0