* 0921 Date: [0^^ Subject: VCM {^T Lead { ) Noise { ) ( ) 1.

33--Hot Working of Metals mg hammer will help ensure proper condi tion of all bolts, screws, keys, valves, and other parts which may be loosened by vibra tion Simdarly, thorough periodic inspection and adjustment should be made of all parts of the treadle or pedal, clutch, and other op erating mechanisms Worn or loose treadle linkage, motion arm, crank arm, and treadle can cause the hammer to go out of control These parts especially should be kept in good repair The clutch is a vital part of the forging press and must be kept in good condition if the press is to operate satisfactorily A broken spring or part which shows wear should be replaced at once Lead casts Lead casts are taken m practically every conceivable manner in the forging industry Casts should be taken only in an isolated area, if possible, where there is no likelihood of interference from or injury to other workers The die impressions should be dry since hot metal that contacts water produces flying particles of molten metal Lead pots should be ventilated to the out side of the building Forging Upsetters The upsetter is a horizontal forging ma chine which forges hot bar stock, usually round, into a great many forms by a squeez ing action instead of impact blows, as in the case of forging hammers Although numerous hazards are involved m the operation of an upsetter, the most senous problems aie en countered in changing the dies The entire machine should be completely enclosed, except for the feed area Heavy wire mesh or expanded or sheet metal rein forced with stiuctural steel should be used Doors may be cut into the enclosure for serv icing flywheel, brake, and other moving parts A guard should be installed ovei the operating pedal Safe operating conditions call for the area around the machine to be clean and clear of obstructions and litter It is especially unpoitant that the top of the machine be cleai of any objects, such as loose bolts, bars, nuts, or shims, which might fall into it or from it 940 SIMM HAMMS MAMimANCS CHECK ITEM CHECKED CY1.

There is some concern that high fugitive losses of VCM could lead to the establishment of an ambient air standard.

(Lead) 9, UN 3077, III, RQ (Lead) UN 3077 RQ (Lead) = 1 lb.

Hot Working of Metals 5IEAM HAMMS MAINTENANCE CHECK Dot*Hammer Nolocation__________________________ REM CHECKS CONDITION TYPE OP EST HIS REPAIR TO REPAS CYl HEAD 601TS MOTION VALVE STEM MOTION VALVE CKANX MOTION VALVE CONNECT WIPES BAB 4 CRANK THIOTTU CRANK THROTTLE LINKAGE RAM 4 SOW BLOCK DIE KEYS 4 SHIMS SOW BLOCK KITS 4 SHIMS GUIDE BOLTS GUIDE WEAR GUU)E ADJUSTING BOLTS GUIDE WEDGE POSITION HOUSING BOLTS 4 SPRINGS TREADLE TtS PLATE LINES PISTON ROD GLAND PLATE GLAND BOLTS TREADLE PLATFORM STEAM CUSHION UNE SCALE HOSE SAFETY LINER SAFETY PROP STEAM LINES STEAM SHUTOFF VALVES REACH ROD COLUMNS FIAT ON BASE COLUMN WEDGE 4 BOLTS SPOOL BOLT 4 PIN SAFETY CABLES CRACKS IN BASE remarks FlG 28-25 (left) -- Maintenance checklist for steam hammers Frequent periodic inspection of every forg ing hammer will help ensure proper condi tion of all bolts, screws, keys, valves, and other parts which may be loosened by vibra tion Similarly, thorough periodic inspec tion and adjustment should be made of all parts of the treadle or pedal, clutch, and other operating mechanisms Worn 01 loose treadle linkage, motion arm, crank arm, and treadle can cause the hammer to go out of control These parts especially should be kept in good repair The clutch is a vital part of the forging press and must be kept in good condition if the press is to operate satisfactorily A broken spring or part which shows wear should be replaced at once Lead casts Lead casts are taken m practically every conceivable manner in the forging industry Casts should be taken only in an isolated area, if possible, where there is no likeli hood of interference from or injury to other workers The die impressions should be dry since hot metal that contacts water produces flying particles of molten metal Lead pots should be ventilated to the out side of the building Forging Upsetters A plant work schedule for repairs may be set up on the basts of the data recorded on the checklists The data may be transferred to the permanent records of the equipment and used for future planning in the maintenance program as well as for comparison of costs In commercial forge plants, steam ham mers constitute a considerable portion of the forging equipment Many hammers are not kept m as efficient condition as possible, usually because management fails to realize that operating and upkeep costs are higher for units in poor condition Waste of steam usually results from worn piston rings or sleeves, loose heads, blown head gaskets, and leaky glands Replacement of wom nngs is good econ omy Worn piston sleeves and sloppy link age make the hammer hard to control and create a hazard Loose cylinder heads also are dangerous The upsetter is a horizontal forging ma chine which forges hot bar stock, usually round, into a great many forms by a squeez ing action instead of impact blows, as m the case of forging hammers Although numer ous hazards are involved m the operation of an upsetter, the most serious problems are encountered in changing the dies The entire machine should be completely enclosed, except for the feed area Heavy wire mesh or expanded or sheet metal rein forced with structural steel should be used Doors may be cut into the enclosure for ser vicing flywheel, brake, and other moving parts A guard should be installed over the operating pedal Safe operating conditions call for the area around the machine to be clean and clear of obstructions and litter It is especially im portant that the top of the machine be clear of any objects, such as loose bolts, bars, nuts, or shims, which might fall into it or from it 844

of lead poisoning from a group of considerable size a few years ago to only one or two sporadic cases a year in one plant at 34 SPNY 000164

THIS PRODUCT, HOWEVER, IS NOT LISTED SINCE IT IS A MIXTURE OF LISTED INGREDIENTS. ** THE EPA, UNDER SECTION 313 OF SARA, REQUIRES EMISSIONS REPORTING OF PRODUCTS WHICH CONTAIN COMPOUNDS OF ANTIMONY , ARSENIC, BARIUM, CADMIUM, CHROMIUM, COBALT COPPER, LEAD, MANGANESE, MERCURY, NICKEL, SELENIUM, AND ZINC.

. - ^Here's, where you can demonstrate SWP) Agree with him that lead and oil are splendid and ne essary paint materials.

SkKani ibrtnl tb Uataoi am on Annul 1.1889. w^lw(ieirarJAe|ioMtocfcBicct)oyilti Jic AlUnUcWkar Lead Cff. wliirk later Imiia pit t llie N'llliinl Lead Hfe flJltf yoM flf Bdt(t Wttlk Ac ClMpMJP lte ny In r1-" *1 *f`*-T 1--'-nr f^Tr t~ M-r jriTr lnd l>fcr<f pal 'dug to tarn.

A low blood lead level in an uncertified lab may falsely underestimate a high blood lead burden.

PEL % VCM Lead Total Particulates 92 97 18 95 6 100 Overexposures Job Class Exposure General Mechanic 1.1** ppm, VCM General Mechanic 2.0** ppm, VCM Yard Operator 4.6* ppm, VCM Color Weigh Compounder 56.6* mi^rogram lead/ni PEL Overexposures No. % 33 15 00 Source Employee overexposed while welding cracks in the dry blend "gump" screener bowl.

Wilmington, Delaware EXPLOSIVES Blasting Powder Blasting Supplies Charcoal Clay Mining Farm Explosives Q Industrial Dynamites Land Clearing Permissible Explosives Refined Nitrate of Soda Road Building Saltpetre Tree Planting Q Wood Pulp SPORTING POWDERS Black Sporting Powder Hand Trap Hunting Q Pistol Smokeless Powder Resort Shooting Rifle Smokeless Powder Shooting in Colleges Shooting on Boats Smokeless Powder Trapshooting PAINTS Automobile Finishes Q Barn and Roof Paint G Colors in Oil Q Concrete Floor Paint O Concrete Paint Enamels Flat Wall Finishes Floor Paints Floor Varnishes Floor Wax House Industrial Paints Japans Q Marine Paints Metal Preservative Paint Mill W'hite Railway Paints Red Lead Shellac Shingle Stain Smokestack Paint O Structural Varnishes Varnish Stain Finishes Wagon and Implement Paints White Lead in Oil Wire Screen Paint Wood Filler Wopd Finishes Q Wood Stains PIGMENTS Artificial Vermilion Dry Colors G Litharge G Litbopone Q Pulp Colors Q Rubber Makers White Q Toiuidine Toner White Lead G Zinc Chromate CHEMICALS Acids G Alums G Barium Chloride G Belt Cement G Benzol Products Q Bronze Powder G Bronzing Liquids Q Carpolene (W'ood Preservative) G Carpo (Metal Paint) Coke O Creosote Q Dead Oil Distilled Water G Ether G Heavy Chemicals Q Household Cement G Leather Renewer G Leather Substitute Solutions G Mantle Dips Metal Lacquer Nitre Cake G Pariodkm G Patent Leather Solutions G Pegamoid Aluminum Paint G Pitch G Pontar Pontoklene O Py-ra-lin Enamels Pyroxylin Solutions Salt Cake Q Shingle Oil Solvents G Split Leather Solutions G Waterproof Cement Wood Lacquer PY-RA-LIN Brushes O Challenge Cleanable Collars Colored Sheeting G Combs G Desk Sets G Manicure Set* G Mirrors G Novelty Sheeting Py-ra-lin Rods and Tubes Q Py-ra-lin Specialties G Py-ra-lin Toilet Goods Toilet Sets G Transparent Sheeting COATED TEXTILES D Auto Truck Special Fabrikoid Book-Finish Fabrikoid Buggy Aprons Q Craftsman Fabrikoid G Fabrikoid for Baggage Fabrikoid for Home Uses Fabrikoid for Railroad Uphol stery and Vestibule Curtains G Fabrikoid for Upholstering Q Fabrikoid Sheeting Fairfield Rubber Coated Cloth Hat Sweat Material Marine Special (U.

Our info: $he tro u b le was diagnosed as- lead poisoning by Dr. !

-By using flat paint, made with Dutch Bby white-lead and Dutch Boy flatting oil, you can easily carry out the recommended treat ments exactly.

TYPE OF I'XPEi.IMENTAL WORK 'PONSO:; ESTIMATED COST (19t6) .histological Behavior of Lead Industrial Lead Exposure Ethyl it C.iorporation ^5 ,uj to ijOd)f UTv X'>9 -j `Ioxicology of Certain Halogenated hydrocarbons Id,ddO to 2 Industrial Lead Exposure E . . du Pont C o . 3,Odd Physiological Behavior of Pennsylvania Salt Pluorine Manufacturing Co. 2,Odd Indus trial Exposure to Fluorine Pennsylvania Salt Manufacturing Co. 2,odd Industrial Exposure to HF Universal Oil Pro ducts Company 1 ,d0d Toxicology of Selenium Lehman Brothers* O j J o Toxicological Investigation of (Commercial Solvents Co. 5,udU Few of Previously Investigated (American Cyanamid C o . 7,50d Chemicals Projected for a (Monsanto Chemical C o . 12,Odd Variety of Uses (Wyandotte Chemical Co. 2 ,5dU Industrial Exposure to Mercury Toxicology of DDT Wyandotte Chemical Co.