ARMY REGULATION 11-34 (RESPIRATORY PROTECTION PROGRAM

File: 011696_103_6_111.txt
Page: 111
Total Pages: 121





         TG No. 144                                                          August 1987

         B-7. Dry filters or water-wash spray booths are used to clean exhaust or
         make-up air. lihen water-wash booths are used and are constructed of steel,
         the material must be 18 gauge or heavier and protected against corrosion.
         Chambers must create and maintain a scrubbing action for removing particulate
         matter. Collecting tanks should be of welded steel construction or other
         noncombustible material. If pits are used they should be of concrete or
         masonry construction. The collecting tanks should have weirs, skimmers or
         screens designed to prevent sludge from entering the pump. The water level
         should be maintained by means of automatic controls. The fresh water inlets
         should not be submerged--terminate at'least one pipe diameter above the
         overflow level of the tank (29 CFR 1910.94).

         D-8. When dry filters are used, they must be in a location easily accessible
         for inspection, cleaning or replacement. The supports and holders should be
         of a noncombustible material. A pressure gauge must be installed to show the
         pressure drop across the filters. This gauge must be marked to indicate the
         pressure drop at which the filters require cleaning or replacement.
         Maintenance procedures must be established to assure filter replacement before
         excessive restriction to airflow occurs. All discarded filter pads and filter
         rolls must be removed to a safe, well-detached location or placed in a
         water-filled metal container and disposed of at the end of a day's operation
         unless maintained completely in water (29 CFR 1910.107).

         D-9. Each spray booth should have an Independent exhaust duct system
         discharging to the exterior of the building, except when multiple booths are
ceed 18
         square feet. In this instance, a common exhaust is permissible. Exhaust from
         booths must be directed to assure it will not contaminate incoming air or
         create a nuisance. Air from spray areas will not be recirculated (29 CFR
         1910.107).























                                               D-2
Box ID = BX000000
Unit = VII CORPS       
Parent Organization = ARCENT          
Folder Title = PORT OPERATIONS CARC PAINTING POLICY                                                            
Subject = ARMY REGULATION 11-34 (RESPIRATORY PROTECTION PROGRAM
Document Number =        103
Image file name = 00000195.tif