438 ORIGINAL ARTICLE Changing trends in US mesothelioma incidence H Weill, J M Hughes, A M Churg Occup Environ Med 2004;61:438-441. doi: 10.1136/oem.2003.010165 See end of article for authors' affiliations Correspondence to: Dr H Weill, 755 Hearthstone Drive, Basalt, CO 81621, USA; weill@rof.net Accepted 2 November 2003 Aims: To report the temporal pattern and change in trend of mesothelioma incidence in the United States since 1973.

Table 2.

W idth Length H e ig h t Over-all Required Length Casing H e ig h t Casing |No. 1 Filters Smoke Pipe Dia.

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182 (Armstrong *V S COR C a M * N V LANCASTER, PA.

BENCH AND STAND GRINDERS DRESSING 1 Wear a face shield over your goggles for pro tection against heavy particles 2 Use a dressing tool approved for the job Never use a lathe cutting tool 3 Inspect star dressers for loose shaft and worn disks 4 Round off the wheel edges with a hand stone before and after dressing to prevent the edges from chipping 5 Use the work rest to support and guide the tool Use a tool holder if one is available 6 Apply moderate pressure slowly and evenly 7 Always apply diamond dressers at the center or slightly below the center, never above Fig 26-24 --Major safety measures to be taken in a wheel dressing operation wheel may overheat at the nm and crack Operators, therefore, should be trained and supervised to make sure they clamp work tightly, always turn a magnetic chuck on before applying the wheel, and control the speed and depth of the work Baffle plates on each end of a surface gnnder are generally standard equipment, but should include some provision for ex hausting the grinding dust (Fig 26-25) Internal grinders can be guarded with an automatic positioning hood that covers the grinding wheel when it is m the retracted or idling position Grindstones Grindstones are made from natural sand stone, usually the Ohio and the Huron types Huron grindstones are harder, have a finer grain, and can be operated at higher speeds than the Ohio Ohio grindstones should never be run at a peripheral speed greater than 3000 sfpm, and for ordinary purposes not over 2500 sfpm Huron stones may be safely run at 3000 sfpm, but should not exceed 3500 sfpm Stones of unknown composition should never be run more than 2500 sfpm and ordi narily not more than 2000 sfpm The size and weight of grindstones require a stand that is rigidly constructed and heavy enough to hold the stone securely mounted on a solid foundation to withstand vibration Since gnndstones are run wet, all possible precautions should be taken to prevent slipping accidents near the stones Rough concrete or other nonskid floor material is recommended Gnndstones should be carefully inspected for cracks and other defects as soon as they are received from the manufacturer Those not to be used at once should be stored m a dry, uniformly heated room In storage they should be placed so that they will not be damaged Many gnndstone failures result from faulty handling and from incorrect methods used in mounting Gnndstones should not be left partially submerged in water This practice causes an unbalanced stone that may break when rotated Wooden wedges should not be used on power-dnven stones Often such wedges are dnven excessively tight or be come wet and swell In either case, cracks start m the comers of a square center hole, radiate outward, and so weaken the stone that ruptures occur at norma) speed After the stone has been centered, the cen- FlC 26-25 --Guarding and exhaust provisions for a surface gnnding operation 779

Type of dust Ignition temp of dust cloud (degC) Win spark energy required for ignition of dust thud (mithjoules) Min ex plosive concen tration (oz per 1 000 cuft) Max explosion pressure <pst) Vinyl butyral resin Vinyl chlonde-acrylonitnie polymer Vinyl copolymer resin Agricultural products Alfalfa Cellucotton Cinnamon Citrus peel dehydrated Clover seed Cocoa Corncob meal Cotton seed Furfural residue Grain dust Lycopodium Nut shells Omon dehydrated Pea dehydrated Potato starch Pyrethrum Soybean Tung Wheat dust Wheat flour Yeast Miscellaneous Adipic acid Aluminum stearate Asptnn Bark dust (Douglas-fr) Beryllium acetate Calcium lignin sulfonic acid Carbon activated Casein rennet Cellulose Charcoal (pine wood) Coal low volatile Coal medium volatile Coat high volatile (Pgh seam) Coal, subbitummous Diazoaminobenzine Dmitro-ortho-cresol Diphenyl Gi Isolate Hexamethylenetetramine Lactalbumin Lignite Uver protein Napalm Paraformaldehyde Peat sphagnum Pentaerythntol Phenothiazme Phthalic anhydride Phytosterol 450 390 530 500 460 440 440 490 470 420 410 400 380 470 400 440 430 500 460 420 410 560 420 440 460 440 520 350 440 470 380 520 550 400 660 540 620 590 660 520 460 620 635 605 610 455 470 550 440 650 560 410 570 440 520 450 410 460 450 540 650 330 BO 10 15 60 320 60 40 45 80 100 160 60 30 80 40 40 30 60 40 SO 40 35 25 60 40 50 30 240 50 50 SO 70 15 25 40 100 100 80 80 120 60 60 45 20 80 60 25 10 SO 60 45 40 20 50 10 15 10 70 85 20 601 35 85 100 40 100 65 50 100 40 115 60 100 60 60 45 62* 85 50 30 120 40 110 55 90 40 105 40 105 55 95 40 105 25 85 30 105 130 60* 50 100 75 110 45 95 too 80 45 95 35 100 35 90 70 110 70 105 50 95 so 105 35 75 15 95 35 85 30 90 60 60 160 60 40* 45 65 55 100 40* 45 120 60 55 85 45 95 35 100 15 90 25 55* 35 55 20 90 15 100 40 90 45 90 45 60 20 85 40 100 45 85 30 90 15 80 15 70 25 75 Rates of pressure nse (psi per sec) Avg Max Limiting oxygen percentage to prevent ignition of dutt cloud by electric sparks 800 500 1 700 200 500 900 1 400 1 200 400 550 150 1 200 2.200 800 1 800 1 400 t 000 1 400 2 300 1 900 400 2100 1 600 2 300 GOO 1 000 1 200 1 600 1 400 1,500 1 200 1 000 1 200 1 200 2000 2900 600 600 200 400 1 100 200 300 300 600 1,200 2 000 2900 1300 400 1200 2400 900 600 BOO 1 000 2 500 900 1700 1.400 1 300 1 500 2 000 1 000 4 500 500 1 000 3000 4 000 3 000 1 000 1200 250 3 750 6 750 2500 7 000 4 000 2 750 4 750 7 000 4 000 1250 6 000 8 000 8000 1 500 2 750 3250 5 000 3500 3,500 3 750 2500 2 750 4 750 10 000+ 9500 2000 2 000 300 1 000 2 750 250 600 600 2250 3 000 5500 10 000+ 2250 1 500 3750 10000-12 750 2750 2250 3000 10000+ 2250 9 500 4 250 4250 8000 17 14 15 13 to 15 13 15 17 17 13 18 16 15 14 13 15 12 14 16 14 I 1611

Rockwell (continued) Rockwell Number F.M.S.I.

TABLE VI WORKPLACE PROTECTION FACTORS FROM TRANSMISSION ELECTRON MICROSCOPIC ANALYSES Workplace Protection Factor Respirator Fibers Exceeding 0.2 ura Diameter and 5 um Length* All Diameter Fibers Exceeding 5 urn Length 3M 8710 330 120 3M 9910 47 41 Survivair 2000 with Dust.

BA 3SC-16 TENTATIVE CONDENSED MANUFACTURING INSTRUCTIONS DEVELOPMENT DEPARTMENT PRODUCT NO. issue no.

STANDARD OIL CO.

The H.

1 1 STATE OF INDIANA 2 COUNTY OF MARION 3 4 IN THE MARION SUPERIOR COURT 5 CIVIL DIVISION, ROOM 2 6 CAUSE NO. 49D02-9501-MI-0001-374 7 8 FREAL and MARY FRYE, 9 Plaintiff, 10 vs. 11 ACandS, INC., et al, 12 Defendants. 13 14 15 16 DEPOSITION OF: CARLO MARTINO 17 WEDNESDAY, MAY 9, 2001 18 19 20 21 22 ATLANTIC CITY COURT REPORTING COMPANY LLC 23 1125 Atlantic Avenue, Suite 416 24 Atlantic City, New Jersey 08401 25 609-345-8448 DUPLICATE FILE COPY F:\Desktop\martmodepo.doc Deposition of CARLO MARTINO, taken in the above-entitled matter before Phyllis A.

NEW PLANT EQUIPMENT Duo equalizing joint to all eqttoliilng rings and to move ail ring* the same relative diatanco at aane time.

TEARCHLIGHT SECTION SEARCHLIGHT SECTION Here's your piRECTORY^mf RELIABLE ELECTRICAL EQUIPME: BE LYE A RE-NU-BILT REBUILT TO N.I.S.A.