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Standard Operating Procedure for the Preparation of Lead-Containing Paint Films and Lead-In-Paint Diagnostic Test Materials

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Standard Operating Procedure for the Preparation of Lead-Containing Paint Films and Lead-In-Paint Diagnostic Test Materials EPA/600/R-10/070 August 2009 www.epa.gov/ord Standard Operating Procedure for the Preparation of Lead-Containing Paint Films and Lead-in-Paint Diagnostic Test Materials Prepared by Kristen Sorrell, David Binstock, Curtis Haas, Cynthia Salmons, and William Gutknecht Environmental and Industrial Sciences Division RTI International Research Triangle Park, NC 27709 Disclaimer The information in this document has been funded wholly or in part by the U. S. Environmental Protection Agency (EPA) under EPA Contract No. EP-D-05-065 to Alion Science and Technology, Inc., and RTI Subcontract No. SUB1174861RB. It has been subjected to the Agency’s peer and administrative review. Mention of trade names or commercial products does not constitute endorsement or recommendation for use. ii Acknowledgments This document was prepared under the direction of the Work Assignment Contracting Officer’s Representative, Ms. Sharon L. Harper, National Environmental Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC. Special acknowledgment is given to Dr. Hunter Daughtrey, Alion Science and Technology, Inc., for his support of this effort and careful review of this document. iii iv Table of Contents List of Figures...............................................................................................................................................vii List of Appendixes........................................................................................................................................vii 1.0 PRINCIPLE AND APPLICABILITY................................................................................................. 1 2.0 SUMMARY OF THE METHOD........................................................................................................ 1 2.1 Stand-Alone Paint Films......................................................................................................... 1 2.1.1 Preparation................................................................................................................. 1 2.1.2 Performance............................................................................................................... 2 2.2 Method Diagnostic Test Materials.......................................................................................... 2 2.2.1 Preparation................................................................................................................. 2 2.2.2 Performance............................................................................................................... 2 3.0 DEFINITIONS, ACRONYMS, AND ABBREVIATIONS .................................................................. 2 4.0 HEALTH AND SAFETY WARNINGS ............................................................................................. 3 4.1 Safety with Paint Ingredients, Including Powdered Lead Compounds and Solvents ............ 3 4.2 Safety with Ball Mill ................................................................................................................ 3 4.3 Proper Disposal of Waste....................................................................................................... 3 5.0 EQUIPMENT, SUPPLIES, AND REAGENTS................................................................................. 3 5.1 Paint Mixing............................................................................................................................ 3 5.1.1 Paint Ingredients ........................................................................................................ 3 5.1.2 Equipment and Supplies for Mixing Paint Ingredients ............................................... 4 5.1.3 Equipment and Supplies for Casting Paint Films....................................................... 4 5.1.4 Supplies and Equipment for Preparing Test Kit Diagnostic Materials ....................... 4 5.2 Cleanup .................................................................................................................................. 5 5.3 Safety Equipment ................................................................................................................... 6 6.0 QUALITY CONTROL AND QUALITY ASSURANCE..................................................................... 6 7.0 PROCEDURE FOR PREPARATION OF STAND-ALONE PAINT FILM ....................................... 6 7.1 Selection of Components ....................................................................................................... 6 7.2 Mixing Paint Ingredients in Ball Mill........................................................................................ 8 7.3 Varying Recipes ..................................................................................................................... 9 7.4 Casting Paint into Films.......................................................................................................... 9 7.5 Retrieval of Paint Film from Release Paper......................................................................... 10 7.6 Testing for Variability of Film Thickness............................................................................... 10 7.7 Cleaning ............................................................................................................................... 11 7.7.1 Ball Mill Jar and Grinding Media .............................................................................. 11 7.7.2 Drawdown Rod and Drawdown Machine................................................................. 11 8.0 PROCEDURE FOR PREPARATION OF LEAD METHOD DIAGNOSTIC TEST MATERIALS........................................................................................................................ 12 8.1 Selection of Components ..................................................................................................... 12 8.1.1 Selection of Substrates ............................................................................................ 12 8.1.2 Selection of Leaded Paint Films............................................................................... 13 8.2 Cutting Paint Films into Desired Dimensions....................................................................... 13 8.3 Assembly of Test Pieces...................................................................................................... 13 8.4 Example of Preparation of Test Piece.................................................................................. 17 9.0 DATA PROCESSING .................................................................................................................... 18 9.1 Variability in Paint Film Thickness........................................................................................ 18 9.2 Variability in Lead Concentration in Prepared Paint Films................................................... 18 9.3 Variability in Lead Concentration in Method Diagnostic Test Materials............................... 18 v Table of Contents (cont'd.) 10.0 DATA AND RECORDS MANAGEMENT...................................................................................... 18 11.0 WASTE MANAGEMENT ......................................................................................................18 11.1 Mineral Spirits....................................................................................................................... 18 11.2 Leaded Paint ........................................................................................................................ 18 12.0 REFERENCES.....................................................................................................................19 vi List of Figures Figure 1. Ball mill being covered with safety shield to prevent injury from rollers. ................................. 3 Figure 2. Plot of paint film Pb concentrations versus Pb concentration in “wet” paint mixture............... 7 Figure 3. Ball mill jar with grinding media along with principal ingredients of paint. ............................... 8 Figure 4. Using the wire-wound drawdown bar to cast a lead chromate paint film on release paper.. 10 Figure 5. Marked paint film being measured for thickness. .................................................................. 11 Figure 6. Photograph of metal, wood, plaster, and masonry substrate materials ready for preparation of diagnostic test materials................................................................................. 12 Figure 7. Paint film cutting apparatus and process............................................................................... 14 Figure 8. Placing leaded paint film on wood substrate coated with primer to serve as adhesive. ....... 14 Figure 9. Smoothing out paint film after allowing time for the primer to partially dry. ........................... 15 Figure 10. Applying overcoat. ................................................................................................................. 16 Figure 11. Photographs of overcoated leaded paint films on wood, metal, masonry, and plaster substrate pieces, along with bare substrate pieces............................................................... 16 List of Appendixes Appendix 1. Results of Analysis of Multiple Samples Taken from Cast Paint Films Needed To Prepare All Planned Types of Coupons .....................................................................A-1 Appendix 2. Summary of Results of Analysis of Each Type of Coupon Prepared ..............................A-2 Appendix
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