Document GKGxj33bRRLvnJ7K4e2GrOX2x

FILE NAME: US Gypsum (USG) DATE: February 11, 1954 DOC#: USG041 DOCUMENT DESCRIPTION: 1954 General Order re Elimination of Dusty Conditions. Cancels page 1 of order issued 8/24/43 and page 2 of order dated 4/1/42 ,Operating Division CENERAL ORDER Approved! f l\] h tW l / r ELIMINATION. O F VU S T T CONDITIONS Ho. 2-5 Date 2-11-5U Page 1 of 3 Cancels Page l Dated 8-2U-l3 i ENCINEiRINO Installations of operating equipment in all plants shall be so designed and Installed as to meet or exceed any state requirement on ventilation and dust . control. The Works Manager shall Immediately notify his Production Manager In the event of any non-compliance of ventilation or dust control lava, out * lining his recommendations for changes In equipment or design or methods necessary for full compliance vlth the state or local regulations. Where the control of dust is Impossible vlth existing plant facilities, authority request for dust-collecting equipment shall be prepared and sub-' mltted to the Production Manager. ` REQUIRED PRECAUTIONS Works Managers shall ascertain that the following precautions are taken to 'eliminate or prevent extremely dusty conditions and shall U k e v l s e avoid employment of Individuals previously exposed to hazardous dust concentrationst Adequate ventilation- shall be maintained in all vork areas. Cleah.-up vork shall bo handled in a manner which vlll not greatly increase dust concentration: Dust-collecting equipment shall be regularly Inspected and maintained' following inotructions issued by the manufacturer. Such equipment, vhen Installed, 'shall be of such' capacity as to control the maximum anticipated concentrations of dust. Bates packers shall be kept tight and. If necessary equipped vlth hood and collector. Conveying, elevating and mixing equipment shall be so maintained that they are not sources of excessive dust. Buhr ment of a dust must buhr stone dressing operations shall be provided vlth adequate equip for removing dust at point of operation. The collector shall be typo which provides suction at the dressing tool and removes the from the. surface of the stone. The dust drawn into the collector be discharged into an arrestor. Workmen engaged lnr dressing of stones'are required to wear goggles end respirators. General Revision PLAINTIFF'S EXHIBIT 1523 ^ri ar Li Aa lIAriirlilerer/#c | EXHIBIT j 1523(2) lb ELIMINATION OF DUSTY CONDITIONS No. 2-5 Date 2- U - 5I1 Page 2 of 3 Cancels Page 2 Dated L -1-1+3 Asbestos Exposure Operations Involving manual handling of asbestos in any plant shall be -- considered in an area in vhich employees shall be required to veer adequate respiratory equipment. Pre -Employment Physical Examinations < Before any applicant for employment is hired, the hietory of his previous employment should be fully developed. If there is a question able history of exposure to asbestos or an indicated partial lung disability such as tuberculosis, the applicant shall x p t be employed in any plant until he satisfactorily passes an X-ray -' examination. The occupational history of all applicants for employment should be. fully recorded on Employment Data and Application Card, Form 1611; 12/52 Revised, for all applicants hired. RESPIRATORS Only respirators approved by the United States Bureau of Mines may be purchased and used for protection against injurious dusts. In other locations it may be veil to provide Martindale Protective Masks to employees to minimize the in halation of nuisance dusts. Employees exposed to high concentrations of dust on infrequent jobs such as mixer clean out, screen retarder, sweeping or cleaning under very dusty condi tions, etc.," shall be required to wear an approved filter-type respirator. 7636 A complete list of such respirators, entitled ''List of Respiratory Protective Devices Approved b y Bureau of Mines", Information Circular No. , is avail able at no cost from the United States Department of Interior Bureau of Mines, Washington, D. C. Care of Respirators Respirators shall not be Interchanged among employees and shall be washed and sterilized by one of the following methods before reissue to the same employee: (NOTE: Remove filter units before sterilizing and washing.) 1. Immerse respirator In a l-to-2-per cent solution of creoeol. Rinse thoroughly and allow to dry. General Revision Operating Division GENERAL ORDER _ J / iilW Approved: ELIMINATION OF DU5T CONDITIONS No. 2-5 Date 2 - 11-& Page 3 of 3 Cancels Dated (New) PLAINTIFF'S EXHIBIT 1523 (3) 2. Immerse respirator in alcohol in strength of 755 or more. Avoid . alcohol that is denatured vith poisonous or irritating substances, unless the respirator 16 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. if. Immerse respirator for 10 minutes in a solution of Formalin, . then rinse. The solution can be made by mixing 1 part of lfO formaldehyde in 9 parts of vater., 5. Immerse respirator in boiling vater or live steam for 5 minutes. . (NOTE: Repeated Immersions in boiling vater or steam will harden rubber parts of the respirator.) Prior to sterilizing the respirators, it is veil to vast the rubber and metal parts vith soap, brush and vans vater end rinse thoroughly. EXPLOSIVE DUSTS Dust vhich has an explosion or flash fire potential such as coal, vood, 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.