Document yrbYQrB3Nk70q6QoM1On0pj4n

Advanced Research laboratory OlviStC* IN location TO: J. Marsh - Trumbull OATE: 7/15/71 subject McGill Study of Asbestos Safety Garments Ref.: M.Q. Scowcroft's Memo of 6/28/74. I have read Milt Scowcroft's memo concerning the McGill Study and I discussed it further with him over the phone on Thursday. Milt has brought out some important points which should help in determining the best approach towards Dr. Gibb's report. I would I like to make some comments on this memo. Our contract with Dr. Gibbs for the McGill Study in question stated as the objective, 'To determine the exposure of a man to asbestos fiber during the normal use of asbestos safety garments in industry." The determination of the specific source of the i.e., hood, coat or mitts is an obvious extension of this study which was not pursued for a variety of reasons. There was also a lack of proper identification fof the fabrics involved wnich was my responsibility. However, the I I objective of the report was to determine the dust levels under normal 1 use and this wcs done in a scientific manner. I agree with Milt's premise that most of the dust arises from the hood. ISome of it probably does come from the coat and mitts as shown by Bamber and Butterworth (Ann. Oceup. Hyg., 13, 77-80, 1970] but I agree that we should work under the assumption that the hood is the problem. I think Or. Gibbs article can be written in such a way as to imply that surface treatment of fabrics reduces the dust levels. Combining this with the Tribestos treatment and John Hawkins' present work on the hood fabric, I think we can obtain a possible salses advantage from the article. i/" Dr. Gibbs! report will, in all liklihood, be published. The only thing we can iffecr is the time of publication and possibly the tone. Until / the article is published, Milt's program of informing his customers will assist in making this information public. 1 would, suggest that he extend the caution to the use of any uncoated asbestos fabric for safety gar-ents. Once John Hawkins has engineered the textile fabric for the hoods, we should be prepared to sec up a test to verify the improvements. John J. Magenheimcr /d cc: M. Scowcroft - Charleston J. Tramor - Trumbull