Document EqaY243NqrZG45pLLb8Lok6pR
FILE NAME: Square D (SQD)
DATE: 2014
DOC#: SQD012
DOCUMENT DESCRIPTION: Legal - Deposition of Redfield for Square D App#6
ROUTE to: TM REj
SQUARE jTI COMPANY INTER-OFFICE
DM
WM
C, W. Denny III
F. J. Hitchcock
Clean Air Act of 1970
Emmission Standards for Pollutants: Asbestos, Beryllium, and Mercury
March 29, 1973 *.c.
The following is an up-date of my November 16, 1972 letter written in response to H, J. Rathbun's October 26, 1972 letter, above subject.
Additional information received since ray letter indicates that we may have molding materials containing asbestos fibers that would require us to comply with certain provisions of the Williams-Steiger Occupational Safety and Health Act.of 1970, Part 1910.93a - Asbestos. These molding powders and their monthly usage are:
Compound Designation
Monthly Usage/Pounds
Durez 23639 Rogers 368 Plenco 509 Union Carbide (Bakelite 6935)
30.000 lbs./mo. 22.000 lbs./mo. 190,000 lbs./mo. 45.000 lbs./mo.
The first two of the above materials, Durez 23639 and Rogers 468, are termed long fiber material. The fibers of these are basically not encapsulated. The other two materials contain bakelite short fibers which are considered to be encapsulated. There is a reasonable degree of certainty that the handling and machining of the long fiber materials will release unencapsulated asbestos fibers into the atmosphere. The compounds containing encapsulated asbestos fibers probably would not release exposed asbestos fibers into the atmosphere during normal handling procedures. But, when parts made of these materials are machined, filed, or abraded in any way then there is a potential of re leasing exposed asbestos fibers into the atmosphere.
We are taking immediate steps to have our atmosphere sampled to determine if we are in compliance with 0SHA standards. We expect to have these tests completed by mid-April.
FJH/cd
@ 2-1
F. J. Hitchcock
SQDKVR 013069