Document peE7Nqxo9X474Zkb2armOzqO7

FILE NAME: Exxon (EXX) DATE: 1964 May 13 DOC#: EXX018 DOCUMENT DESCRIPTION: Memo RE Insulators' Exposures to Asbestos MEMORANDUM TO Dr. Beili K. Weaver m o il Fred S. Venable V M C T Insulators1 Exposures to Asbestos BAT BATON ROUOC. LA. 5/13M 11A MO. Many of the insulatihg materials used in the refinery such as cements, preformed sections, elbows and coverings contain varying amounts of asbestos fibres together with glass, magnesia and cement. In the 19U0s and early 1950s, the insulation used for high temperature lines and equipment consisted of such asbestos - containing materials as: 302 Cement - Johns-Manville Unibestos - Pittsburgh-Cornlng Thermobestos - Johns-Manville Calsite - Ruberoid Company Careytemp - Philip Carey Company Asbestos felt papers and asbestos sponge felted insulation was also used to wrap cork insulated lines on cold piping. The loose asbestos cement was received in bags, dumped into mixing troughs, stirred with water and applied wet. Some asbestos dust would likely be released in the first stag of this mixing. Much pre-formed asbestos-magnesia insulation has been used over the years, along with preformed elbows and other non-linear configurations. These are sometimes cut and fitted b y har'd using hand saws (formerly power sawing was done about 10 years ago). ' Although most insulation work is outdoors, occasional Jobs are done in confined or semi confined spaces such as beneath structures, inside compressor houses, etc. which may have given rise to periodic high exposures. On the average, however, it is felt that exposures to asbestos was low due to such factors as work speed, wet application and good ventilation. Respirators were available for use by the insulators but in view of the low dust concentrations encountered, it is not likely that they were worn for appreciable periods. In recent years, never insulation materials have been gaining in popularity. These are mainly foam glass and polyurethane preformed sections. Some asbestos - calcium silicate insulation (Owens-Corning Kaylo) is used today. Preformed sections are generally available. Asbestos cements are used by Masons principally at this time. Only Johns Manville h50 Asbestos cement is used by insulators. In addition to the work of the insulator in applying asbestos materials, it should be remembered that their work of removing old insulation is likely to produce dry dust exposures, also. 1 0021 STATUS AS OF JUNE 1, 1966 List of Insulators active as of 1955 (baseline) ACTIVE NAME IMPUTEE NUMBER Hopkins, E:* G. Gonzales, M. J. Kendrick, T. Bozeman, J. B. ' Repp, C. J. Araedee, L. T. Blount, C. Kelly, S. H. Ashford, C. A. Dupuis, S. J. Lastrapes, C. J. Bije&ux, A. J. - Usie, C. J. Letiolois, A. Albarez, A- J. Allen, R. v Wascoa, H. D. Hyoel, A. A. Micheli!, E. Ellis, L. E. Lasseigne, R. Carmen*, S. K. Shaffett, M. Smiley, F. M. Kelly, W. J. Cockerhaa, E. D. Efferson, H. F. Broussard, 5.'B. Borne, R. J. . Robertson, J. W. Underwood, C. F. Hidalgo, J. L. LeBlanc, A. L. Volnche, D. J. 5638 4144 857 502 4262 4005 718 6177 1394 411B 6226 ' 4360 4364 4363 4377 1960 2528 2554 2696 10287 6476 6542 6634 11275 11541 12261 12265 12523 12006 13109 13110 12857 13558 14030 34 Leggette, M. C. Lemoine, E. J. Miller, S. C. ' Patin. O. . Richard, R. Jt Diet, C. J. Boudreaux, L. Higgins, m :-. Alterns, K. Charlton, A. 0. Langlois, R. J. Oufnac, 6. J. Rodriguez, H. P. Sullivan, P. L. Routon, T. K. Selser, H. L. Taylor, G. Major, E. J. Thompson, E. A. Sillinger, G. Hopson, W. Glover, C. C. Williams, J. *. Aaron, J. F. Castello, L. J. Acfoord, W. T. Fowler, J. D- Fugler, C. G. Granada, J. T. Harris, R. W. Haynes, V. Perault, D. J. Fitwater, T. B. Wells, E. E. Beckham, J. A. Hebert, A. J. Rossin, If. w. Former, T. H. Hall, W. Bostwick, K. W. \ > Keowen, L. L. Grace, C. C. . Henry, P. Levy, A. Hamilton, J . a. Heatiy, E. Killing, A. GREASE PLAHT ACTIVE ANNOnAWTS 7222 7172 8258 8210 8017 8089 8082 T u lli* r, R. C. Moras, E. J. N m b s h , R- M., Jr. Cherry, Henry,.Jr. Cavalier, Join W. Buell, E. M. Holley, J. H. McGowan, M<- C. Tuaiaello, R. M. Michel, t. D., Jr. Xelleber, E. J. Hulifl, L. J., Jr. fcaafcllo, R. J. Landry, A. J. RVoilclk,naDir.,A.0. E. Regan, D. F. White, W. G., BWirligkginss, ontf,. R. R. PJr. . Tnxeil, L. J. THWNATCD 4/55 12/59 6/63 2/62 - 8/61 . 8/61 1/61 6/61 8/61 8/61 8/61 8/61 8/61 8/61 8/61 8/61 8/61 . 8/61 8/61 6/61 8/61