Document 5jJO7wGZpoz58r4o7ZyOn1p0

FILE NAME: US Gypsum (USG) DATE: August 24, 1943 DOC#: USG044 DOCUMENT DESCRIPTION: 1943 General order regarding elimination of dusty conditions. Replaces page 1 of order from 4/1/43. Operating Division GENERAL OnDl^L Vice Pres.-Operations EX H IB IT Jjl .. elimination of dusty conditions No. 2-5 Date 3-24-43 Pace 1 of 2 Cancels Page 1 Dated 4-1-43 Laws and regulations Plant Managers shall be familiar with state and local regulations concerning ventila tion and dust elimination, and shall promptly notify their Production Manager of any violations, outlining the changes in equipment or methods necessary for full com pliance. W h e r e elimination of dust is impossible under q u e s t s f or dust collecting equi p m e n t shall be Manager. existing prepared conditions, authority re and submitted to Pro d u c t i o n PECUIPED PRECAUTIONS Plant Managers are responsible for seeing that the following precautions are taken to eliminate extremely dusty conditions and should endeavor to avoid employing in dividuals previously exposed to hazardous dust concentrations: Good ventilation shall be maintained in all working areas and cleanup work handled in a manner which will not greatly increase dust concentration. Dust collecting equipment shall be regularly inspected and maintained, fol lowing instructions issued by the manufacturer. Bates packers shall be kept tight and if necessary to avoid excessive dust, shall be equipped with hood and collector. Conveying, elevating and mixing equipment shall be so maintained that they are not sources of excessive dust. Men exposed to high concentrations of dust on infrequent jobs such as mixer clean-out, screening retarder, shaking out bags, sweeping or cleaning under very d u s t y conditions, etc., shall be required to wear respirators. Buhr stone dressing operations shall be provided with equipment for remov ing the dust at the point of operation. T he collector shall be a Kuemelin or equivalent type, which provides suction at the dressing tool and removes the dust from the surface of the stone. The dust drawn into the collector must be discharged into an arrestor. Workmen engaged in dressing buhr stones art required to wear goggles and respirators. It is recommended that before any applicant for employment is hired, the history of his previous employment be fully developed. If there is a questionable history of exposure to asbestos or silica dust, or an indicated partial lung disability such as tuberculosis, the applicant should not be employed until satisfactorily passing a m edical examination. Such a m e d i c a l examination shall include the taking of cheat X-Pays and their interpretation by Saranac Laboratories as set forth in Bul letin 4-5. It is further recommended that the occupational history of all applicants for em ployment be fully recorded on Employment Data and Application card. F o r a 1614 5 / 4 3 Pev., and this card become a p a r t of the p e r m a n e n t employment r e c o r d o f all applicants' hired. Th e procedure r e commended in this and the preceding1 paragraph definite reouirement ac the East Chicago shingle plant, and at Oakfield. / Indicates change. .Operating Division GENERAL ORPTM Approved! ELIMINATION OF DUSTY CONDITIONS No. 2-5 Date 2-11-5U Page, 3 of 3 Cancels Dated______ (New) 2. Immerse respirator in alcohol in strength of 75# or more. Avoid alcohol that is denatured with poisonous or Irritating substances, unless the respirator is thoroughly rinsed after sterilizing. 3. Place the respirator in a moist atmosphere of antiseptic gas, such as formaldehyde. This must be done, in a tight cabinet. Immerse respirator for 10 minutes in a solution of Formalin, then rinse. The solution can be made by mixing 1 part of 40$ formaldehyde in 9 parts of water. 5. Immerse respirator in boiling water or live steam for 5 minutes. (NOTE: Repeated immersions in boiling water or steam will harden rubber parts of the respirator.) Prior to sterilizing the respirators, it is well to wash the rubber and metal part8 with soap, brush and warm water and rinse thoroughly, EXPLOSIVE DUSTS Dust which has an explosion or flash fire potential such as coal, wood, paper, starch, etc., shall be adequately controlled, arrested and removed to eliminate or minimize the possibility of an explosion or flash fire. Refer all questions concerning explosive dusts and their control to Department 186 - Tax and Pro perty Department, Chicago Office. ' 'T O : Dallas Plant - Hr. A. L. M ondy Chamblee Plant - Mr. W. H. C h ristoffersen N e w Brighton Plant - Mr. E. W. Lucke Gypsum Plant - Mr. M. M. Fischer M i d w a y Plant - - Mr. J. M. Paul ROM: #340 - Mr. J. J. M c V a y 3JECT: IMPERIAL QT TEXTURE FINISH PLAINTIFF'S EXHIBIT 1662 | " ' / June 7, 1973 As of April 1, the Government E n v i ronmental Agency issued a n ew regulation banning use of asbestos in spray acoustical and insulation materials. Although it doesn't specifically mention decorative materials such as Imperial QT, it is our Legal Department's opinion that such materials will be Included in the very near future. Consequently, it is necessary that we re-evaluate our QT Textures in this light immediately. Research has set a schedule to move on the program and it will require cooperation and some sample batch production by the plants _for test evaluation, etc. Your plant has always been cooperative in such matters, however, we thought you should be advised that Research will be requesting action on the part of your people and reasons why we feel it so urgent. . Research will be contacting you soon outlining their program. JJMcV/cjm cc: 0970-M 0980-M #990-M ^#151 #340 - Mr. - Mr. - Mr. - Mr. - Mr. K. E. M o h l e r R. W. Deneke E. D. Foggin E. M aynard B. H. Swenson