SDAPCD RULE X-M STDS.OF PERF.:SEC.BRSS&BRNZE INGOT PROD.PLTS         
LAST REVISED 03/30/77

          
          SUBPART M - Standards of Performance for Secondary Brass and
                      Bronze Ingot Production Plants  
                      (Delegation Effective 3-30-77)


                RULE 260.130.    APPLICABILITY AND DESIGNATION OF AFFECTED
                                 FACILITY (Rev. Effective 9/17/85)

                The provisions of this subpart are applicable to the following
           affected facilities in secondary brass or bronze ingot production
           plants:

                (a)   Reverberatory and electric furnaces of 2205 lbs 
           (1,000 kg) or greater production capacity; and

                (b)   Blast (cupola) furnaces of 550 lbs (250 kg) per hour or
           greater production capacity.

                Furnaces from which molten brass or bronze are cast into the 
           shape of finished products, such as foundry furnaces, are not 
           considered to be affected facilities.


                RULE 260.131.    DEFINITIONS

                As used in this subpart, all terms not defined herein shall 
           have the meaning given them in Subpart A of this Regulation.

                (a)   "Brass or Bronze" means any metal alloy containing 
           copper as its predominant constituent, and lesser amounts of zinc, 
           tin, lead, or other metals.

                (b)   "Reverberatory Furnace" includes the following types of
           reverberatory furnaces:  Stationary, rotating, rocking, and 
           tilting.

                (c)   "Electric Furnace" means any furnace which uses 
           electricity to produce over 50 percent of the heat required in the 
           production of refined brass or bronze.

                (d)   "Blast Furnace" means any furnace used to recover metal 
           from slag.


                RULE 260.132.    STANDARD FOR PARTICULATE MATTER

                (a)   On and after the date on which the performance test 
           required to be conducted by Rule 260.8 is completed, no owner or 
           operator subject to the provisions of this subpart shall discharge 
           or allow to be discharged into the atmosphere from a reverberatory 
           furnace any gases which:

                      (1)  Contain particulate matter in excess of 50 mg/dscm
                (0.022 gr/dscf).

                      (2)  Exhibit 20 percent opacity or greater.

                (b)   On and after the date on which the performance test 
           required to be conducted by Rule 260.8 is completed, no owner or 
           operator subject to the provisions of this subpart shall discharge 
           or cause the discharge into the atmosphere from any blast (cupola) 
           or electric furnace any gases which exhibit 10 percent opacity or 
           greater.


                RULE 260.133.    TEST METHODS AND PROCEDURES

                Performance tests shall be conducted as specified in Part 60,
           Chapter I, Title 40, Code of Federal Regulations, Section 60.133.