SDAPCD RULE X-SS STDS.OF PERF.FOR INDUS.SURF.COAT.:LG.APP.          
LAST REVISED 11/03/92

          
          SUBPART SS  -  Standards of Performance for Industrial Surface
                         Coating:  Large Appliances  (Delegation Effective 
                         4/24/84:  Rev. Effective 11/3/92)


               RULE 260.450.  APPLICABILITY AND DESIGNATION OF AFFECTED
                              FACILITY

               (a)  The provisions of this subpart apply to each surface
          coating operation in a large appliance surface coating line.

               (b)  The provisions of this subpart apply to each affected
          facility identified in Section (a) of this rule that commences
          construction, modification, or reconstruction after December 24,
          1980.


               RULE 260.451.  DEFINITIONS

               All terms used in this subpart not defined below are given
          the meaning in the Act or in Subpart A of this Regulation.

               (a)  "Applied Coating Solids" means the coating solids that
          adhere to the surface of the large appliance part being coated.

               (b)  "Large Appliance Part" means any organic surface-coated
          metal lid, door, casing, panel, or other interior or exterior
          metal part or accessory that is assembled to form a large
          appliance product.  Parts subject to in-use temperatures in
          excess of 250F are not included in this definition.

               (c)  "Large Appliance Product" means any organic surface-
          coated metal range, oven, microwave oven, refrigerator, freezer,
          washer, dryer, dishwasher, water heater, or trash compactor
          manufactured for household, commercial, or recreational use.

               (d)  "Large Appliance Surface Coating Line" means that
          portion of a large appliance assembly plant engaged in the
          application and curing of organic surface coatings on large
          appliance parts or products.

               (e)  "Coating Application Station" means that portion of the
          large appliance surface coating operation where a prime coat or a
          topcoat is applied to large appliance parts or products (e.g.,
          dip tank, spray booth, or flow coating unit).

               (f)  "Curing Oven" means a device that uses heat to dry or
          cure the coating(s) applied to large appliance parts or products.

               (g)  "Electrodeposition" (EDP) means a method of coating
          application in which the large appliance part or product is
          submerged in a tank filled with coating material suspended in
          water and an electrical potential is used to enhance deposition
          of the material on the part or product.

               (h)  "Flashoff Area" means the portion of a surface coating
          line between the coating application station and the curing oven.

               (i)  "Organic Coating" means any coating used in a surface
          coating operation, including dilution solvents, from which VOC
          emissions occur during the application or the curing process.
          For the purpose of this subpart, powder coatings are not included
          in this definition.

               (j)  "Powder Coating" means any surface coating that is
          applied as a dry powder and is fused into a continuous coating
          film through the use of heat.

               (k)  "Spray Booth" means the structure housing automatic or
          manual spray application equipment where a coating is applied to
          large appliance parts or products.

               (l)  "Surface Coating Operation" means the system on a large
          appliance surface coating line used to apply and dry or cure an
          organic coating on the surface of large appliance parts or
          products.  The surface coating operation may be a prime coat or a
          topcoat operation and includes the coating application
          station(s), flashoff area, and curing oven.

               (m)  "Transfer Efficiency" means the ratio of the amount of
          coating solids deposited onto the surface of a large appliance
          part or product to the total amount of coating solids used.

               (n)  "VOC Content" means the proportion of a coating that is
          volatile organic compounds (VOC's), expressed as kilogram s of
          VOC's per liter of coating solids.

               (o)  "VOC Emissions" means the mass of volatile organic
          compounds (VOC's), expressed as kilograms of VOC's per liter of
          applied coating solids, emitted from a surface coating operation.



               All symbols used in this subpart not defined below are given
          the meaning in the Act or Subpart A of this Regulation.

          Ca   =    the concentration of VOC's in a gas stream leaving a
                    control device and entering the atmosphere (parts per
                    million by volume, as carbon).

          Cb   =    the concentration of VOC's in a gas stream entering a
                    control device (parts per million by volume, as
                    carbon).

          Cf   =    the concentration of VOC's in a gas stream emitted
                    directly to the atmosphere (parts per million by
                    volume, as carbon).
          Dc   =    density of coating (or input stream), as received
                    (kilograms per liter).

          Dd   =    density of a VOC-solvent added to coatings (kilograms
                    per liter).

          Dr   =    density of a VOC-solvent recovered by an emission
                    control device (kilograms per liter).

          E    =    the VOC destruction efficiency of a control device
                    (fraction).

          F    =    the proportion of total VOC's emitted by an affected
                    facility that enters a control device (fraction).

          G    =    the volume-weighted average mass of VOC's in coatings
                    consumed in a calendar month per unit volume of applied
                    coating solids (kilograms per liter)

          Lc   =    the volume of coating consumed, as received (liters).

          Ld   =    the volume of VOC-solvent added to coatings (liters).

          Lr   =    the volume of VOC-solvent recovered by an emission
                    control device (liters).

          Ls   =    the volume of coating solids consumed (liters).

          Md   =    the mass of VOC-solvent added to coatings (kilograms).

          Mo   =    the mass of VOC's in coatings consumed, as received
                    (kilograms).

          Mr   =    the mass of VOC's recovered by an emission control
                    device (kilograms).

          N    =    the volume-weighted average mass of VOC's emitted to
                    the atmosphere per unit volume of applied coating
                    solids (kilograms per liter).

          Qa   =    the volumetric flow rate of a gas stream leaving a
                    control device and entering the atmosphere (dry
                    standard cubic meters per hour).

          Qb   =    the volumetric flow rate of a gas stream entering a
                    control device (dry standard cubic meters per hour).

          Qf   =    the volumetric flow rate of a gas stream emitted
                    directly to the atmosphere (dry standard cubic meters
                    per hour).

          R    =    the overall VOC emission reduction achieved for an
                    affected facility (fraction).

          T    =    the transfer efficiency (fraction).

          Vs   =    the proportion of solids in a coating (or input
                    stream), as received (fraction by volume).

          Wo   =    the proportion of VOC's in a coating (or input stream),
                    as received (fraction by weight).


               RULE 260.452.  STANDARD FOR VOLATILE ORGANIC COMPOUNDS

               On or after the date on which the performance test required
          by Rule 260.8 is completed, no owner or operator of an affected
          facility subject to the provisions of this subpart shall
          discharge or cause the discharge of VOC emissions that exceed
          0.90 kilogram of VOC's per liter of applied coating solids from
          any surface coating operation on a large appliance surface
          coating line.


               RULE 260.453.  PERFORMANCE TEST AND COMPLIANCEPROVISIONS

               The owner or operator of an affected facility shall conduct
          performance tests and provide compliance calculations as
          specified in Part 60, Chapter I, Title 40, Code of Federal
          Regulations, Section 60.453.


               RULE 260.454.  MONITORING OF EMISSIONS AND OPERATIONS

               (a)  The owner or operator of an affected facility that uses
          a capture system and an incinerator to comply with the emission
          limits specified under Rule 260.452 shall install, calibrate,
          maintain, and operate temperature measurement devices as
          prescribed below:

                    (1)  Where thermal incineration is used, a temperature
               measurement device shall be installed in the firebox.  Where
               catalytic incineration is used, a temperature measurement
               device shall be installed in the gas stream immediately
               before and after the catalyst bed.

                    (2)  Each temperature measurement device shall be
               installed, calibrated, and maintained according to the
               manufacturer's specifications.  The device shall have an
               accuracy of the greater of 0.75 percent of the temperature
               being measured expressed in degrees Celsius or +2.5C.

                    (3)  Each temperature measurement device shall be
               equipped with a recording device so that a permanent
               continuous record is produced.



               RULE 260.455.  REPORTING AND RECORDKEEPING REQUIREMENTS.
                              (Rev. Effective 11/3/92)

               (a)  The reporting requirements of Rule 260.8(a) apply only
          to the initial performance test.  Each owner or operator subject
          to the provisions of this subpart shall include the following
          data in the report of the initial performance test required under
          Rule 260.8(a):

                    (1)  Except as provided in Subsection (a)(2) of this
               rule, the volume-weighted average mass of VOC's emitted to
               the atmosphere per volume of applied coating solids (N) for
               a period of one calendar month from each affected facility.

                    (2)  For each affected facility where compliance is
               determined under the provisions of Rule 260.453(b)(1)(iv), a
               list of the coatings used during a period of one calendar
               month, the VOC content of each coating calculated from data
               determined using Reference Method 24 or supplied by the
               coating manufacturer, and the minimum transfer efficiency of
               any coating application equipment used during the month.

                    (3)  For each affected facility where compliance is
               achieved through use of an incineration system, the
               following additional information will be reported:

                         (i)  The proportion of total VOC's emitted that
                    enters the control device (F).

                         (ii) The VOC reduction efficiency of the control
                    device (E).

                         (iii)The average combustion temperature (or the
                    average temperature upstream and downstream of the
                    catalyst bed), and

                         (iv) A description of the method used to establish
                    the amount of VOC's captured and sent to the
                    incinerator.

                    (4)  For each affected facility where compliance is
               achieved through use of a solvent recovery system, the
               following additional information will be reported:

                         (i)  The volume of VOC-solvent recovered (Lr), and

                         (ii) The overall VOC emission reduction achieved
                    (R).

               (b)  Following the initial performance test, the owner or
          operator of an affected facility shall identify, record, and
          submit a written report, as specified in Rule 260.7(c), to the
          Control Officer every calendar quarter of each instance in which
          the volume-weighted average of the total mass of VOC's emitted to
          the atmosphere per volume of applied coating solids (N) is
          greater than the limit specified under Rule 260.452.  If no such
          instances have occurred during a particular quarter, a report
          stating this shall be submitted to the Control Officer
          semiannually.
               
               (c)  Following the initial performance test, the owner or
          operator of an affected facility shall identify, record, and
          report semiannually to the Control Officer the following:

                    (1)  Where compliance with Rule 260.452 is achieved
               through use of thermal incineration, each 3-hour period of
               coating operation during which the average temperature of
               the device was more than 28C below the average temperature
               of the device during the most recent performance test at
               which destruction efficiency was determined as specified
               under Rule 260.453.

                    (2)  Where compliance with Rule 260.452 is achieved
               through the use of catalytic incineration, each 3-hour
               period of coating operation during which the average
               temperature recorded immediately before the catalyst bed is
               more than 28C below the average temperature at the same
               location during the most recent performance test at which
               destruction efficiency was determined as specified under
               Rule 260.453.

               Additionally, all 3-hour periods of coating operation during
          which the average temperature difference across the catalyst bed
          is less than 80 percent of the average temperature difference
          across the catalyst bed during the most recent performance test
          at which destruction efficiency was determined as specified under
          Rule 260.453 will be recorded.

                    (3)  For thermal and catalytic incinerators, if no such
               periods as described in Subsections (c)(1) and (c)(2) of
               this rule occur, the owner or operator shall state this in
               the report.

               (d)  Each owner or operator subject to the provisions of
          this subpart shall maintain at the source for a period of at
          least two years, records of all data and calculations used to
          determine VOC emissions from each affected facility.  Where
          compliance is achieved through the use of thermal incineration,
          each owner or operator shall maintain at the source daily records
          of the incinerator combustion chamber temperature.  If catalytic
          incineration is used, the owner or operator shall maintain at the
          source daily records of the gas temperature, both upstream and
          downstream of the incinerator catalyst bed.  Where compliance is
          achieved through the use of a solvent recovery system, the owner
          or operator shall maintain at the source daily records of the
          amount of solvent recovered by the system for each affected
          facility.


               RULE 260.456   TEST METHODS AND PROCEDURES

               Performance tests shall be conducted as specified in Part
          60, Chapter I, Title 40, Code of Federal Regulations, Section
          60.456.