Document 91Xye54Bk9mEZDVvw2Rrbp8QL

THE MIDLAND August 12, 1969 DOW CHEMICAL COMPANY ro-zi-. PLAINTIFF'S EXHIBIT 2'/1 -1?x. - * & Ac Co DOW-1388 Yr l - . /oS' > ,, /./* 4r', fv fT - _ 7' /c ' Ed Stephenson Midland Area Purchasing 47 Building - /;X, - f** ' > - 2.1 1 324 S/2 ` <?>2 ~ ST0006854 REVISION OF INSULATING MATERIAL STOCKS ON D. V. S. As a result of the meetings on Insulation Hazards and Materials Review during the week of August 4, 1969, we should expect the usage of Aircell pipe insulation to be materially reduced in the next three months. At the end of this time, the requirements for Aircell should be very small. At the same time, we should expect the use of Fiberglas to increase by about the same amount. We are making an evaluation of Careyiemp 1500 in several places in the Plant. If it proves satisfactory and especially if the PhillipCarey Company is successful in eliminating the asbestos, we can expect it to replace most of the calcium-silicate now in use. At that time it would certainly seem appropriate to place it on D. V. S. M. T. Badley Field Maintenance & CCP 49 Building Phone 6-2736 cc: T. Madden R. Anderson 411641 j ST0006855 THE DOW CHEMICAL COMPANY MIDLAND October 24, 1969 M. T. Badley Manager Maintenance Technology Center 49 Building CLARIFICATION OF INSULATION PROCEDURES Due to the fact that there have been a few misinterpretations as to what we are doing and what we are trying to accomplish in the way of new insulating materials here at Midland, perhaps a few state ments will clarify the situation. First and foremost, for health reasons our intent has been to elim inate as many asbestos-containing materials as possible. In the low temperature range (100 - 350F. ) we have done this by substituting Fiberglas insulation for Aircell. In the medium temperature range (400 - 1500F. ) we are proposing the use of Careytemp 1500 instead of Kaylo. Unfortunately, at the present time, there is no asbestos-free material available for tempera tures above 1500F. The same statement is true for mineral wool insulating cements. To protect our people from exposure to asbestos when exposure is necessary, we are providing and requiring the use of approved types of respiratory equipment. This requirement applies to the removal and mixing of asbestos-containing materials as well as the applica tion. Maintenance Engineer OCP Maintenance 808 Building Phone 6-4456 rb cc: T. J. Madden 411642 ST000G856 THE DOW CHEMICAL COMPANY MIDLAND October 29, 1969 E.' D. Stephenson Midland Area Purchasing 47 Building REVISION OF INSULATING MATERIAL STOCKS ON DVS In a letter dated August 12 you were apprised of our decision to phase out Aircell pipe insulation and change to Fiberglas. We had arbitrarily chosen a period of three months in which to accomplish this. Now I think we shall set a date; namely November 1, 1969, at which time we should terminate the purchasing or stocking of any Aircell pipe insulation. Beginning immediately, we will start a withdrawal of calciumsilicate type insulation in favor of asbestos-free Careytemp 1500. We should be able to accomplish this change in about the same period of time. This switch will not include Kaylo 20 or other high temperature insulating materials that we are presently using. M. T. Baaley Manager Maintenance Technology Center 49 Building Phone 6-2736 cc: T. Madden W. Graves W. Hages R. Anderson 411643 7_<7 ST0006857 i H t DO W MIDLAND DIVISION ., May 4, 1973 " E SVi i n t VO--# St'j* ; Z3 N n C O M P ANY iv'iCs-iGA'* <3o-ao H. G. Ahlich B. L. Argyle J. C. Coffin H. C. Fex*guson S. A. Gebharct J. S. Harris M. Kelyman V/. E. Mathews R. E. Miller J. C. Pangborn P.- W. Price J. E. Schroen J. A. Tomke L. E. Vi'allwey L. Wilford J. V/. vrujkcwski 433 572 464 S34 462 S26 4C0 462 464 49 S24 5S2 433 S26 SCO 49 R. M. X. G. B. H. T. M. R. D. A. \7. W. pMf'M R. J. Anderson T. B a d 1 e y W. Dorrien H. FIcres E. H2rmon R. Hoyle J. Madden J. Miller E. Onan G. Plamfceck C. Proffitt C. Timm B. Vanderklipp L. k'eimer B. Y/i Ilians on 761 49 222 1701 572 1701 572 572 433 BC 222 47 49 S24 572 AS.BESTOS DEMOLITION Although v/e no longer use 2sbestcs insulating materia Is the health hazards associated with asbestos will cent ir.ue to be a problem .until all of it is removed from the p The Department of Labor (CSHA) has issued an Asbestos Standard and under the encouragement of labor and the Insulation Industry Hygiene Research Program located m the Environmental Sci me: s Laboratory of t ne Mount Si na i School of Medicine, CL L C ntion is being fo mused on th e general non-compliance of the standard. T e standard , if followed, will minimize the asbestos expos re to the employees and we are in agreement with The work oract as outlined. The standard has been reviewed with both Timm's and Badley's staff. Field checks "nave shown that the content of the standard has either not reached the foremen and the employees or the standard is being ignored. Please com municate the following asbestos work-practice procedures to the appropriate people in your organization and insist that they be followed. 1. Post all major asbestos demolition jobs with the proper caution signs to alert r.on-protected employees from entering the area. 411644 ST000G850 2. 2. The asbestos covering and the adjacent area should be wetted to reduce the spread of dust. Whenever feasible localized ventilation should be used to collect the loose asbestos fibers. 3. K Vfear approved dust respirators during all asbestos --removing operations. Respirators should be cleaned -daily. j 4. Place all loose asbestos waste in properly labelled or tagged impermeable containers for land fill disposal. Labels and tags are available from stock. 5. Any asbestos contaminated clothing sent for laundering should be placed in a properly identified impermeable bag. 6. Major demolition jobs should be monitored to determine the amount of asbestos fibers in the work environment. The TLV is 5 particles, longer than 5 microns, per cubic centimeter of air. In 1976 the TLV is lowered to 2 particles. 7. Each asbestos employee will be given an annual medical examination. 8. Employees should be informed of all survey data as soon as practicle after receipt of the information. If these rules are followed the health of the employees will be protected and we will comply with the OSKA standard also. A 15 minute slide-tape presentation has been prepared concerning the hazards of asbestos. Vie encourage the shewing of this program to all employees working with asbestos. It can be scheduled for your June Safety Meetings. Y'e have studied the newer insulating materials and have found no health hazard if used properly. The fiber glass products do give off toxic products when heated. Lowcensity fiber glass should-not be applied to surfaces above 200C (400F) and the heavy density to surfaces above 300C (575F) without an organic vapor respirator. C2rey-Temp 1500 has been reported to be a problem. The Analytical Laboratory did not find any toxic fumes when heated to 600C (11Q0F). Yfe would like to measure the fumes during field conditions. If you have a job in which Carey-Temp is being installed to a hot surface please notify ny office. 411645 3. If there are any questions concerning the health hazards of any insulating material or work practice please contact my office. Ralph R. Langner ' Industrial Hygiene Services 607 Building jal 6 S8 9 0 0 0 1 S 411646