410-1

RULE 410 Organic Solvents - Adopted 4/18/72, Amended 12/17/74, 11/27/79 

I. A person shall not discharge into the atmosphere more than 15 pounds or organic materials

in any 1 day from any article, machine, equipment, or other contrivance in which any organic

solvent or any material containing organic solvent comes into contact with flame or is baked,

heat-cured, or heat-polymerized in the presence of oxygen, unless said discharge has been

reduced by a least 85 percent. These portions of any series of articles, machines, equipment,

or other contrivances designed for processing continuous web, strip, or wire that emit organic

materials in the course of using operations described in this Section shall be collectively

subject to compliance with this Section.

II. A person shall not discharge into the atmosphere more than 40 pounds of organic materials

in any 1 day from any article, machine, equipment or other contrivance used under

conditions other than those described in Paragraph I. of this Section for employing or

applying any photochemically reactive solvent, as defined in Paragraph X. of this Section,

or material containing such photochemically reactive solvent, unless said discharge has been

reduced by at least 85 percent. Emissions of organic materials into the atmosphere resulting

from air or heated-drying of products for the first 12 hours after their removal from any

article, machine, or other contrivance described in this Section shall be included in

determining compliance with this paragraph. Emissions resulting from baking, heat-curing,

or heat-polymerizing as described in Paragraph I. of this Section shall be excluded from

determination of compliance with this Section. Those portions of any series of articles,

machines, equipment, or other contrivances designed for processing a continuous web, strip,

or wire that emit organic materials in the course of using operations described in this Section

shall be collectively subject to compliance with this Section.

III. A person shall not, after August 31, 1986, discharge into the atmosphere more than 3,000

pounds of organic materials in any 1 day from any article, machine, equipment, or other

contrivance in which any non-photochemically reactive organic solvent or any material

containing such a solvent is employed or applied, unless said discharge has been reduced by

at least 85 percent. Emissions or organic materials into the atmosphere resulting from air or

heated-drying of products for the first 12 hours after their removal from any article, machine,

equipment, or other contrivance described in this Section shall be included in determining

compliance with this Section. Emissions resulting from baking, heat-curing, or heatpolymerizing as described in Paragraph I. of this Section shall be excluded from

determination of compliance with this Section. Those portions of any series of articles,

machines, equipment, or other contrivances designed for processing a continuous web, strip,

or wire that emit organic materials in the course of using operations described in this Section

shall be collectively subject to compliance with this Section.

IV. Emissions of organic materials to the atmosphere from the cleanup with photochemically

reactive solvent, as defined in Section X., of any article, machine, equipment or other 
410-2

contrivance described in Sections I., II., or III., shall be included with the other emissions of organic

materials from that article, machine, equipment or other contrivance for determining compliance

with this Rule.

V. Emissions of organic materials into the atmosphere required to be controlled by Sections I.,

II., or III., shall be reduced by:

A. Incineration, provided that 90 percent or more of the carbon in the organic material

being incinerated is oxidized to carbon dioxide, or

B. Absorption, or

C. Processing in a manner determined by the Air Pollution Control Officer to be not less

effective than A. or B. above

VI. A person incinerating, absorbing, or otherwise processing organic materials pursuant to this

Rule shall provide, properly install and maintain in calibration, in good working order and

in operation, devices as specified in the Authority to Construct or the Permit to Operate, or

as specified by theAir Pollution Control Officer, for indicating temperatures, pressures, rates

of flow or other operating conditions necessary to determine the degree and effectiveness of

air pollution control.

VII. Any person using organic solvents or any materials containing organic solvents shall supply

the Air Pollution Control Officer, upon request and in the manner and form prescribed by

him, written evidence of the chemical composition, physical properties and amount

consumed for each organic solvent used.

VIII. The provisions of this Rule shall not apply to:

A. The manufacture of organic solvents, or the transport or storage of organic solvents or

materials containing organic solvents.

B. The use of equipment for which other requirements are specified by Rules 411, 412,

413, and 414, or which are exempt from air pollution control requirements by said

Rules.

C. The spraying or other employment of insecticides, pesticides or herbicides.

D. The employment, application, evaporation or drying of saturated halogenated

hydrocarbons or perchloroethylene.

E. The use of any material, in any article, machine, equipment or other contrivance

described in Sections I., II., III., or IV., if:
410-3

1. the volatile content of the material consists only of water and organic solvents,

and

2. the organic solvents content comprises not more than 20% by volume of the total

volatile content, and

3. the volatile content is not photochemically reactive, and

4. the organic solvent does not come into contact with flame.

F. The use of any material in any article, machine, equipment or other contrivance

described in Sections I., II., III., or IV. if:

1. until January 1, 1977, the organic solvent content of a material does not exceed

30% by volume of said material after January 1, 1977, the organic solvent

content of such material shall not exceed 20% by volume, and

2. the volatile content is not photochemically reactive, and

3. the organic solvent content does not come into contact with flame.

G. The use of equipment or surface coating material for which other requirements are

specified by these Rules and Regulations.

IX. For the purpose of this Rule, organic solvents include diluents and thinners and are defined

as organic materials which are liquids at standard conditions and which are used as

dissolvers, viscosity reducers or cleaning agents, except that such materials exhibiting a

boiling point higher than 220 F at 0.5 millimeter mercury absolute pressure or having an

equivalent vapor pressure shall not be considered to be solvents unless exposed to

temperatures exceeding 220 F.

X. For the purposes of this Rule, a photochemically reactive solvent is any solvent with an

aggregate of more than 20 percent of its total volume composed of chemical compounds

classified below or which exceeds any of the following individual percentage composition

limitations, referred to the total volume of solvent:

A. A combination of hydrocarbons, alcohols, aldehydes, esters, ethers or ketones having

an olefinic or cycloolefinic type of unsaturation: 5 percent;

B. A combination of aromatic compounds with eight or more carbon atoms to the

molecule except ethylbenzene: 8 percent;

C. A combination of ethylbenzene, ketones having branched hydrocarbon structures,

trichloroethylene or toluene: 20 percent.
410-4

Whenever any organic solvent or any constituent of an organic solvent may be

classified from its chemical structure into more than one of the above groups of

organic compounds, it shall be considered as a member of the most reactive chemical

group; that is, that group having the least allowable percentage of the total volume of

solvents.

XI. For the purpose of this Rule, organic materials are defined as chemical compounds of carbon

excluding carbon monoxide, carbon dioxide, carbonic acid, metallic carbides, metallic

carbonates and ammonium carbonate.