Exposure to an occupational antigen

(a)   metal salts of platinum, chrome, or nickel

Platinum refiner, chemist, chrome polisher, chemical worker, cement tanning worker, nickel plater, chemical engineer.

(b)   dusts from oak, western red cedar, African maple, or ramin wood

Wood machinist, woodworker, carpenter, sawmill worker, wood finisher.

(c)   dusts or aerosols from cereal grain, wheat flour, rye flour, the castor bean, green coffee bean, soybean, buckwheat, latex, or  hydrolysed gluten

Grain elevator worker, miller, baker, grain worker, bagger, farmer, chemist, coffee worker, soybean processor, operating room nurse (re latex).

(d)   powdered forms of antibiotics, piperazine hydrochloride, or cimetidine

Chemical process worker, pharmaceutical worker.

(e)   fumes or dusts from toluene diisocyanate, methylene diphenyl diisocyanate, hexamethylene diisocyanate, phthalic acid anhydride, trimellitic anhydride, hexahydrophthalic anhydride, tetrahydrophthalic anhydride, himic anhydride, persulfate salts, ethylenediamine, p-phenylenediamine, ethylene diamine, triethylene tetramine, or reactive dyes: tartrazine; azoquinone; anthroquinone; methyl blue; or black G-R

Workers with varnish, polyurethane and plastics, automobile spray painter, chemical worker, epoxy resin worker, tool setter, paint manufacturer, hairdresser, fur dyer, rubber, shellac manufacturer, photographer, manufacturer of aircraft filters, textile dyer, dye weigher.

(f)    dusts or vapours from biological enzymes, subtilisin, aspergillus enzymes, trypsin, pancreatin, or laundry detergents

Medical or pharmaceutical laboratory worker, plastic polymer processor, pharmaceutical worker, pharmacist, enzyme processor worker or messenger, detergent industry worker.

(g)   dusts or vapours from animal hair, pelts, urine, serum and secretions, or crustaceans

Handler of laboratory animal (rats, mice, guinea pigs, rabbits), farmer, veterinarian, meat processor, meat inspector, poultry breeder or processor, egg processor, oyster farmer, oyster shucker, prawn processor.

(h)   insect dusts and secretions

Zoo curator, granary worker, dock worker, mill worker, farmer, laboratory worker, teacher, field worker, silkworm cutter, pea or bean sorter, outside worker, entomologist.