Outdated Standard Exemptions 7-61, September 23, 1982
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7. Boilers, heaters or other combustion units, but not including stationary internal combustion engines or turbines, provided that:
(1) The only emissions are products of combustion of the
(2) The maximum heat input is 10 x 106 BTU per hour or less.
(3) The fuel is:
(a) Sweet natural gas,
(b) LP gas
(c) Fuel gas containing no more than 0.1 grains of total sulfur compounds (calculated as sulfur) per dry standard cubic foot, or
(d) No. 2 fuel oil with less than 0.5% sulfur by weight.
8. Water cooling towers and water tanks, reservoirs or other water containers which cool, store or otherwise handle water that has not been used in direct contact with process gaseous or liquid streams containing air contaminants.
9. Equipment used exclusively for steam cleaning and dry cleaning.
10. Presses used exclusively for extruding metals, minerals, plastics, rubber or wood.
11. Vitreous or porcelain enameling furnaces or drying ovens.
12. Presses used for the curing of rubber products and plastic products.
13. Equipment used for hydraulic or hydrostatic testing.
14. All printing presses except those which will emit 15 tons per year or greater of volatile organic printing solvents.
15. Tanks, vessels and pumping equipment used exclusively for the storage or dispensing of fresh commercial or pure grades of sulfuric acid with an acid strength of 99% or less by weight; phosphoric acid with an acid strength of 99% or less by weight; nitric acid with an acid strength of 70% or less by weight; aqueous caustic or salt solutions of sodium, calcium, potassium, magnesium, barium and lithium metals; water or waste water.
16. Ovens used exclusively for the curing of plastics or rubber which is concurrently being vacuum held to a mold or ovens used exclusively for the softening or annealing of plastics or rubber.
17. Equipment used exclusively for the dyeing or stripping of textiles.
18. Equipment used exclusively to mill or grind coatings and molding compounds where all materials charged are in a paste form.
19. Crucible or pot furnaces with a brim full capacity of less than 450 cubic inches of any molten metal.
20. Equipment used exclusively for the melting or application of wax.
21. Equipment used exclusively for bonding lining to brake shoes.
22. Equipment used in eating establishments for the purpose of preparing food for human consumption.
23. Equipment used exclusively to store or hold dry natural gas.
24. All closed tumblers used for the cleaning or deburring of metal products without abrasive blasting, and all open tumblers with a batch capacity of 1,000 pounds or less.
25. Shell core and shell mold manufacturing machines.
26. Sand or investment molds with a capacity of 100 pounds or less used for the casting of metals.
27. Batch mixers with rated capacity of 5-cubic feet or less.
28. Equipment used exclusively for the packaging of lubricants or greases.
29. Equipment used exclusively for the manufacture of water emulsions of asphalt, greases, oils, or waxes.
30. Ovens used exclusively for the curing of vinyl plastisols by the closed mold curing process.
31. Equipment used exclusively for conveying and storing plastic and/or rubber pellets.
32. Equipment used exclusively for the mixing and blending of materials at ambient temperature to make water based adhesives.
33. Smokehouses in which the maximum horizontal inside cross sectional area does not exceed 100 square feet.
34. Platen presses used for laminating.
35. Blast cleaning equipment using a suspension of abrasives in water.
36. Ovens, mixers, blenders and confection cookers if the products are edible and intended for human consumption.
37. Kilns used for firing ceramic ware, heated exclusively by natural gas, liquified petroleum gas, electricity or any combination thereof.
38. Bench scale laboratory equipment and laboratory equipment used exclusively for chemical or physical analyses.
40. Equipment used for inspection of metal products.
41. Equipment used exclusively for rolling, forging, pressing, drawing, spinning or extruding either hot or cold metals by some mechanical means.
42. Die casting machines.
43. Photographic process equipment by which an image is reproduced upon material sensitized to radiant energy.
44. Brazing, soldering or welding equipment.
45. Hand-held or manually operated equipment used for buffing, polishing, carving, cutting, drilling, machining, routing, sanding, sawing, surface grinding or turning of ceramic art work, ceramic precision parts, leather, metals, plastics, fiber board, masonry, carbon, glass, graphite or wood.
46. Equipment using aqueous solutions for electrolytic plating, electrolytic polishing or stripping of brass, bronze, cadmium, copper, iron, lead, nickel, tin, zinc and precious metals and for cleaning, stripping, etching or other surface preparation but not including chemical milling or electrolytic metal recovery and reclaiming systems.
47. Equipment used for washing or drying products fabricated from metal or glass, provided no volatile organic materials are used in the process and that no oil or solid fuel is burned.
48. Laundry dryers, extractors or tumblers used for fabrics cleaned with water solutions of bleach or detergents.
49. Foundry sand mold forming equipment to which no heat is applied.
50. Ovens with a charging rate of less than 2,000 pounds per hour used exclusively for curing potting materials or castings made with epoxy resins.
51. Equipment used for compression molding and injection molding of plastics.
52. Mixers, blenders, roll mills or calendars for rubber or plastics where no material in powder form is added and in which no organic solvents, diluents or thinners are used.
53. Equipment used exclusively to package pharmaceuticals and cosmetics or to coat pharmaceutical tablets.
54. Roll mills or calendars for rubber or plastics in which organic solvents, diluents or thinners are used provided that before construction begins the facility is registered with From PI-7 and information regarding process rate and type of material emitted.
55. Vacuum producing devices used in laboratory operations.
56. Containers, reservoirs, or tanks used exclusively for dipping operations for coating objects with oils, waxes, or greases where no organic solvents, diluents, or thinners are used; or dipping operations for applying coatings of natural or synthetic resins which contain no organic solvents.
57. Containers, reservoirs, tanks or change of chemical services in the container, reservoir or tank used exclusively for unheated storage of organic materials with initial boiling point of 300 degrees F or greater. The storage of aniline, m-cresol, croton oil, maleic anhydride, 2-methyl styrene, toluene-2 and 4-diisocyanate is not exempt under this standard exemption.
58. Containers, reservoirs, or tanks used exclusively for the storage of fuel oils, kerosene, diesel fuel, lubricating oils and oil additives with each having a true vapor pressure of less than 0.5 psia.
60. Containers, reservoirs, or tanks with a capacity of 6,000 gallons or less used exclusively for the storage of organic liquids, except gasoline, normally used as solvents, diluents, or thinners; inks; colorants; paints; lacquers; enamels; varnishes; liquid resins; or other surface coatings.
61. Containers, reservoirs, or tanks used exclusively for the storage of liquid soaps, liquid detergents, vegetable oils, waxes, or wax emulsions.
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