| A1. | AOAC Official Method 977.11: Moisture in Cheese In Official Methods of Analysis of AOAC International; Cunniff, P., Ed.; AOAC International: Arlington, VA, 1995. |
| A2. | AOAC Official Method 985.14: Moisture in Meat and Poultry Products In Official Methods of Analysis of AOAC International; Cunniff, P., Ed.; AOAC International: Arlington, VA, 1995. |
| A3. | AOAC Official Method 985.15: Fat (Crude) in Meat and Poultry Products In Official Methods of Analysis of AOAC International; Cunniff, P., Ed.; AOAC International: Arlington, VA, 1995. |
| A4. | AOAC Official Method 985.26: Solids (Total) in Processed Tomato Products In Official Methods of Analysis of AOAC International; Cunniff, P., Ed.; AOAC International: Arlington, VA, 1995. |
| A5. | ASTM Method D1506-94b: Standard Test Methods for Carbon Black - Ash Content ; The American Society for Testing and Meterials: Philadelphia, 1994. |
| A6. | ASTM Method D4309-91: Standard practice for sample digestion using closed vessel microwave heating technique for the determination of total recoverable metals in water ; The American Society for Testing and Meterials: Philadelphia, 1991. |
| A7. | ASTM Method D4643-93: Standard test method for determination of water (moisture) content by soil by the microwav oven method ; The American Society for Testing and Meterials: Philadelphia, 1993. |
| A8. | ASTM Method D5258-92: Standard practice for acid extraction of elements from sediments using closed vessel microwave heating ; The American Society for Testing and Meterials: Philadelphia, 1992. |
| A9. | ASTM Method D5513-94: Standard Practice for Microwave Digestion of Industrial Furnace Feedstreams for Trace Element Analysis ; The American Society for Testing and Meterials: Philadelphia, 1994. |
| A10. | ASTM Method E1358-90: Standard test method for determination of moisture content of particulate wood fuels using a microwave oven ; The American Society for Testing and Meterials: Philadelphia, 1990. |
| A11. | ASTM Method E1645-94: Standard Practice for the Preparation of Dried Paint Samples for Subsequent Lead Analysis by Atomic Spectrometry ; The American Society for Testing and Meterials: Philadelphia, 1994. |
| A12. | SW-846 EPA Method 3015: Microwave assisted acid digestion of aqueous sample and extracts In Test Methods for Evaluating Solid Waste, 3rd edition, 3rd update; U.S. EPA: Washington, DC, 1995. |
| A13. | SW-846 EPA Method 3031: Acid digestion of oils for metals, analysis by FLAA or ICP spectroscopy In Test Methods for Evaluating Solid Waste, 3rd edition, 3rd update; U.S. EPA: Washington, DC, 1995. |
| A14. | SW-846 EPA Method 3050B: Acid digestion of sediments, sludges, and soils In Test Methods for Evaluating Solid Waste, 3rd edition, 3rd update; U.S. EPA: Washington, DC, 1995. |
| A15. | SW-846 EPA Method 3051: Microwave assisted acid digestion of sediments, sludges, soils, and oils In Test Methods for Evaluating Solid Waste, 3rd edition, 3rd update; U.S. Environmental Protection Agency: Washington, DC, 1995. |
| A16. | Hewitt, A. D.; Reynolds, C. M. in "Microwave Digestion of Soils and Sediments for Assessing Contamination by Hazardous Waste Metals"; Special Report 90-19, U.S. Army Corps of Engineers Cold Regions Research & Engineering Laboratory, June 1990, 1990 |
| A17. | Hewitt, A. D.; Cragin, J. H. "Comment on "Acid Digestion for Sediments, Sludges, Soils, and Solid Wastes. A Proposed Alternataive to EPA SW 846 Method 3050"" Environ. Sci. Technol. 1991, 25, 985-986. |
| A18. | Hewitt, A. D.; Cragin, J. H. "Comment on "A Study of the Linear Ranges of Several Acid Digestion Procedures"" Environ. Sci. Technol. 1992, 26, 1848. |
| A19. | Kimbrough, D. E.; Wakakuwa, J. "A Study of the Linear Ranges of Several Acid Digestion Procedures" Environ. Sci. Technol. 1992, 26, 173-178. |
| A20. | SW-846 EPA Method 3052: Microwave assisted acid digestion of siliceous and organically based matricies In Test Methods for Evaluating Solid Waste, 3rd edition, 3rd update; U.S. EPA: Washington, DC, 1995. |
| A21. | Fordham, O. , 1996. |
| A22. | 40 CFR Part 136: Guidelines Establishing Test Procedures for the Analysis of Pollutants; Microwave Digestion Federal Register 1992, 57, 41830-41834. |
| A23. | in "Closed Vessel Microwave Digestion of Wastewater Samples for Determination of Metals"; RD42, CEM Corporation, 1992 |
| A24. | Method 3030K: Microwave assisted digestion In Standard Methods for the Examination of Water and Wastewater; Greenberg, A. E., Clesceri, L. S., Eaton, A. d., Eds.; American Public Health Association: Washington, D.C., 1992. |
| A25. | NIEA Method C303.01T: Acid digestion of fish and shellfish ; Republic of China. |
| A26. | Method V 03-100: Kjeldahl Nitrogen ; French Standard. |