BAAQMD RULE 850 POLYESTER RESIN OPERATIONS
LAST REVISED 06/15/94
  
                             REGULATION 8
                           ORGANIC COMPOUNDS
                                RULE 50
                      POLYESTER RESIN OPERATIONS 
                                   
                                 INDEX
                                    
  
  8-50-100     GENERAL
  
  8-50-101     Description
  8-50-110     Limited Exemption, Touch-up and Repair
  
  8-50-200     DEFINITIONS
  
  8-50-201     Catalyst
  8-50-202     Cleaning Materials
  8-50-203     Close-mold System
  8-50-204     Control System
  8-50-205     Corrosion-resistant Materials
  8-50-206     Cross-linking
  8-50-207     Fiberglass
  8-50-208     Gel Coat
  8-50-209     Inhibitor
  8-50-210     Low-VOC Emission Resin System
  8-50-211     Monomer
  8-50-212     Polyester
  8-50-213     Polyester Resin Material
  8-50-214     Polyester Resin Operations
  8-50-215     Polymer
  8-50-216     Polymerize
  8-50-217     Repair
  8-50-218     Resin
  8-50-219     Touch-up
  8-50-220     Volatile Organic Compound (VOC)
  8-50-221     Vapor Suppressant
  8-50-222     Waste Materials
  8-50-223     Airless Spray
  8-50-224     Air-assisted Airless Spray
  8-50-225     Electrostatic Spray
  8-50-226     High-volume, Low-pressure Spray
  8-50-227     Approved Emission Control System
  8-50-228     Key System Operating Parameter
  
  
  
  8-50-300     STANDARDS
  
  8-50-301     Process Requirements
  8-50-302     Spraying Operations
  8-50-303     Emission Control Requirement
  8-50-304     Corrosion-resistant Materials
  8-50-305     Surface Preparation and Clean-up Solvent
  8-50-306     Equipment Requirements
  8-50-307     Gel Coat Requirement
  
  8-50-400     ADMINISTRATIVE REQUIREMENTS
  
  8-50-500   MONITORING AND RECORDS
  
  8-50-501   Records
  
  8-50-600   MANUAL OF PROCEDURES
  
  8-50-601   Analysis of Samples
  8-50-602   Determination of Emissions
                                REGULATION  8
                              ORGANIC COMPOUNDS
                                  RULE 50                         
                           POLYESTER RESIN OPERATIONS
                           (Adopted December 5, 1990)
                               
8-50-100   GENERAL
  
8-50-101  Description:  The purpose of this Rule is to limit organic
          compound emissions from the manufacturing of products using
          polyester resins.
  
8-50-110  Limited Exemption, Touch-up and Repair:  The requirements of
          Sections 8-50-301 shall not apply to touch-up and repair.
  
8-50-200   DEFINITIONS
  
8-50-201     Catalyst:  A substance added to the resin to initiate
             polymerization. 
  
8-50-202  Cleaning Materials: Materials used to clean hands, tools,
          molds, application equipment, work area, and other process
          related equipment.
  
8-50-203  Closed-mold System: A system of forming objects from 
          polyester resins by placing the material in a confining cavity
          and applying pressure and/or heat.
  
8-50-204  Control System:  A control device and collection system
          designed in accordance with good engineering practices.
  
8-50-205  Corrosion-resistant Materials: Halogenated, furan,
          Bisphenol-A, Vinyl-ester, or isophthalic resins used to make
          products for corrosive or fire retardant services.
  
8-50-206  Cross-linking:  The chemical process of joining two or more
          polymer chains together.
  
8-50-207  Fiberglass: A fiber similar in appearance to wool or cotton
          fiber but made from glass.
  
8-50-208  Gel Coat:  A polyester resin surface coating that provides a
          cosmetic enhancement and improves resistance to degradation from
          exposure to the environment.
  
8-50-209  Inhibitor:  A substance used to slow down or prevent a
          chemical reaction.
  
8-50-210  Low-VOC Emission Resin System:  A polyester resin material
          which contains additives to reduce monomer evaporation loss.
  
8-50-211  Monomer:  A relatively low molecular weight organic compound
          that combines with itself or other similar compounds to
          become a polymerized thermosetting resin.
  
8-50-212  Polyester:  A complex polymeric ester containing
          difunctional acids.
  
8-50-213  Polyester Resin Material:  Any VOC containing materials used
          in polyester resin operations which include, but are not
          limited, to unsaturated polyester resins such as
          isophthalic, orthophthalic, halogenated, bisphenol-A, vinyl-
          ester, or furan resins; cross-linking agents; catalysts, gel
          coats, inhibitors, accelerators, promoters, and any other
          VOC containing materials.
  
8-50-214  Polyester Resin Operations:  Methods used for the production
          or rework of product by mixing, pouring, hand laying-up,
          impregnating, injecting, forming, spraying, and/or curing
          unsaturated polyester materials with fiberglass, fillers, or
          any other reinforcement materials and associated clean-up.
  
8-50-215  Polymer:  A substance consisting of a large number of
          chemical groups and which is formed by the chemical linking
          of monomers.
  
8-50-216  Polymerize:  Transformation from a liquid to a solid or
          semi-solid state to achieve desired product physical
          properties, including hardness.
  
8-50-217  Repair:  The part of the fabrication process that requires
          the addition of polyester material to portions of a
          previously fabricated product in order to mend minor
          structural damage immediately following normal fabrication
          operations.
  
8-50-218  Resin:  Any class of organic polymers of natural or
          synthetic origin used in reinforced products to surround and
          hold fibers, and is solid or semi-solid in the polymerized
          state.
  
8-50-219  Touch-up:  The portion of the fabrication process that is
          necessary to cover minor imperfections.
  
  
8-50-220  Volatile Organic Compound (VOC): Any organic compound
          (excluding methane, carbon monoxide, carbon dioxide,
          carbonic acid, metallic carbides or carbonates and ammonium
          carbonate) which would be emitted during use, application,
          curing or drying of a solvent or polyester resin material.
             
             220.1 For purposes of calculating the VOC content of a
             polyester resin material, any water or any of the following
             non-precursor organic compounds shall not be considered to  
             be part of the polyester resin material:
             acetone
             parachlorobenzotrifluoride (PCBTF)
             cyclic, branched or linear completely methylated
             siloxanes (VMS)
             220.2 For the purposes of calculating the VOC content of
             a solvent, any water shall be considered part of the
             material.(Amended December 20, 1995)

  8-50-221   Vapor Suppressant:  A substance added to resin to minimize
             the outward diffusion of monomer vapor into the atmosphere.
  
8-50-222     Waste Materials:  Materials including, but not limited to,
             any scrap resulting from cutting and grinding operations,
             any paper or cloth used for cleaning operations, waste
             resins, non-polymerized waste resins, and any spent cleaning
             materials.
  
8-50-223     Airless Spray:  Equipment used to apply materials by use of
             fluid pressure without atomizing air, including heated
             airless spray.
           
8-50-224     Air Assisted Airless Spray:  Equipment used to apply
             materials that uses fluid pressure to atomize coating and
             air pressure between 0.1 and 10 psig to adjust the spray
             pattern.
  
8-50-225     High-Volume Low-Pressure (HVLP) Spray:  Equipment used to
             apply materials by means of a gun which operates between 0.1
             and 10 psig air pressure.
            
8-50-226     Electrostatic Air Spray:  Equipment used to apply materials
             by charging atomized particles that are deposited by
             electrostatic attraction.
  
8-50-227     Aproved Emission Control System:  A system for reducing
             emissions of VOC to the atmosphere, consisting of a control
             device and a collection system, which achieves the overall
             abatement efficiency specified in the applicable standards
             section at all times during operation of the equipment being
             controlled. (Adopted June 15, 1994)
  
8-50-228     Key System Operating Parameter: An emission control system
             operating parameter, such as temperature, flow rate or
             pressure, that ensures operation of the abatement equipment
             within manufacturer specifications and compliance with the
             standard in Section 8-50-303. (Adopted June 15, 1994

8-50-300     STANDARDS

8-50-301     Process Requirements:  Effective June 1, 1991, a polyester
             resin operation shall use one or more of the following
             emission reducing methods except as provided in Section 8-
             50-304:
             301.1 Use polyester resin material with a monomer content of
                   no greater than 35 percent by weight.
             301.2 Use a resin containing vapor suppressant, such that
                   weight loss from VOC emissions do not exceed 60 grams
                   per square meter of exposed surface area during resin
                   polymerization.
             301.3 Use a closed-mold system.
  
8-50-302     Spraying Operations:  A polyester resin operation using
              spray application equipment shall use one or more of the
              following spray equipment:
              302.1  Airless Spray 
              302.2  Air-assisted Airless Spray
              302.3  Electrostatic Spray
              302.4  High-volume, Low-pressure Spray
  
8-50-303     Emission Control Requirement: The requirements of Sections
             8-50-301 and 302 shall not apply to polyester resin
             operations which install and properly operate an approved
             emission control system that meets the requirements of 
             Regulation 2, Rule 1 and reduces organic compound emissions
             by at least 85 percent overall.
             (Amended June 15, 1994)

8-50-304     Corrosion-resistant Materials: Effective June 1, 1991,any
             polyester resin operation using corrosion-resistant
             materials to manufacture products for corrosive or fire
             retardant service shall use a polyester resin material with
             a monomer content of no greater than 50 percent by weight.
  
8-50-305     Surface Preparation and Clean-up Solvent:  The 
             requirements of this section shall apply to any polyester
             resin operation using organic solvent for surface
             preparation and clean-up.
             305.1 A polyester resin operation shall use closed
                   containers for the storage of all polyester resin
                   materials, cleaning materials and any unused VOC-
                   containing materials except when accessed for use.
             305.2 A polyester resin operation shall use self-closing
                   containers for the disposal of all polyester resin
                   materials, cleaning materials, waste materials, and any
                   unused VOC containing materials in such a manner as to
                   effectively control VOC emissions to the atmosphere.
             305.3 A polyester resin operation shall not use organic
                   compounds for the clean-up of spray equipment including
                   spray lines unless equipment for collecting the
                   cleaning material and minimizing their evaporation to
                   the atmosphere is used.
             305.4 A polyester resin operation shall use cleaning
                   materials that contain no greater than 200 grams of VOC
                   per liter of material.
                   
8-50-306     Equipment Requirements:  Effective June 1, 1991, all resin
             baths shall be covered to reduce organic compound emissions.

8-50-307     Gel Coat Requirement:  A person shall not use a gel coat
             which contains more than 250 grams of volatile compounds per
             liter of coating applied.
  
8-50-500   MONITORING AND RECORDS
  
8-50-501     Records:  Effective June 1, 1991, any polyester resin
             operation shall comply with the following requirements, as
             applicable:
             501.1 Maintain a list of resin, catalyst, and cleaning
                   material used.
             501.2 Maintain a list of the weight of VOC (in percent) in
                   the polyester resin materials and the grams of VOC per
                   liter for the cleaning materials.
             501.3 For vapor suppressed resins, maintain a list of the
                   weight loss (grams per square meter) during resin
                   polymerization, the monomer percentage, and the gel
                   time for each resin.
             501.4 Maintain records on a daily basis that provide the
                   following information as applicable:
                   a.   the amount of each of the polyester resin
                        materials and cleaning materials used.
                   b.   the volume of resin and cleaning materials used
                        for touch-up and repair.
             501.5 Such records shall be retained and available for
                   inspection by the APCO for the previous 24-month
                   period.

8-50-502     Approved Emission Control System, Recordkeeping
             Requirements:  Any person operating an approved emission
             control system to comply with Section 8-50-303 shall record
             key system operating parameters on a daily basis.(Adopted
             June 15, 1994)

8-50-600   MANUAL OF PROCEDURES
  
8-50-601     Analysis of Samples:  Samples from polyester resin
             operations shall be analyzed as follows:
             601.1 Samples of gel coat as specified in Sections 8-50-307
                   shall be analyzed as prescribed in the Manual of
                   Procedures, Volume III, Method 26.
             601.2 Samples of cleaning materials as specified in Section
                   8-50-305.4 shall be analyzed as prescribed in the
                   Manual of Procedures, Volume III, Method 31.
             601.3 Samples of polyester resin material as specified in
                   Sections 8-50-301 and 304 shall be analyzed as
                   prescribed in the Manual of Procedures, Volume III,
                   Method 23.

  8-50-602   Determination of Emissions: Emissions from polyester resin
             operations as specified in Section 8-50-303 shall be
             analyzed as prescribed by any of the following methods: 1)
             BAAQMD Manual of Procedures, Volume IV, ST-7, 2) EPA Method
             25 or 25A.  A source shall be considered in violation if the
             VOC emissions measured by any of the referenced test methods
             exceed the standards of this rule.(Amended June 15, 1994)