Method 8265: [PDF Format 158
This method uses direct sampling ion trap mass spectrometry (DSITMS) for the rapid quantitative measurement, continuous real-time monitoring, and qualitative and quantitative preliminary screening of volatile organic compounds (VOCs) in water, soil, soil gas, and air. DSITMS introduces sample materials directly into an ion trap mass spectrometer by means of a simple interface (such as a capillary restrictor). There is little if any sample preparation and no chromatographic separation. The response of the instrument to analytes in a sample is nearly instantaneous. In addition, the instrument is field transportable, rugged, and relatively easy to operate and maintain.
Method 5035A: [PDF Format 197 KB]
Closed-System Purge-and-Trap and Extraction for Volatile Organics in Soil and Waste Samples
This method describes a closed-system purge-and-trap sample preparation process for the analysis of volatile organic compounds (VOCs) in solid materials (e.g., soils, sediments, and solid waste). While the method is designed for use on samples containing low levels of VOCs, procedures are also provided for collecting and preparing solid samples containing high concentrations of VOCs and for oily wastes. In addition, the method contains an appendix with pertinent information and appropriate references based on EPA's evaluation of currently available data and technology as applied to the most appropriate sample handling and preservation procedures in order to minimize the loss of VOCs during the collection and analysis of aqueous and solid materials, such as groundwater, wastewater, soils, solid waste, or sediments. These procedures are designed to minimize the losses of VOCs through the two most common mechanisms, volatilization and biodegradation.
PROPOSED UPDATE IIIB
EPA is proposing to revise several methods and chapters of SW-846 and release these revisions as an update (Update IIIB) to the Third Edition of SW-846Update IIIB is now available. Proposed Update IIIB is now available on-line.
Draft Update IVB was issued by the EPA's Office of Solid Waste and contains methods which are being considered for inclusion in SW-846. All Update IVB documents can be viewed or downloaded from this site. View the Federal Register notice (65 FR 70678) which announces Draft Update IVB and explains the appropriate use of its methods or view the index to the docket. To summarize:
To find out more information about the current status of the RCRA methods development program, please look at the article "An Update of the Current Status of the RCRA Method Development Program". This article has been updated to include the activities of the OSW Methods Team in advancing the RCRA Methods Development Program over the past year.
OSW has revised the existing Methods 9070 and 9071A to replace the CFC Freon
113 with n-hexane as the extraction solvent for determination of oil and
grease. This change has been issued as a Direct Final Rule, which was published
in the Federal Register on
SW-846 documents: The much awaited arrival of the SW-846 METHODS ON-LINE is now a reality. The documents found on-line are complete copies of the published versions and thus include all figures and tables. The files are retrievable in the Portable Document Format (PDF).