Vapor space characterization of waste Tank 241-U-103: Results from samples collected on 2/15/95

Tank characterization report for single-shell tank 241-U-103

“…Sections 2.1 through 2.9 present the response. Data from the February 1995 vapor sample Ligotke et al 1995) and February 1997 to March 1998 tracer gas samples provided the means to address the vapor screening, organic solvents, and vapor phenomenology issues. See Appendix B for sample and analysis data for tank 241-U-103.…”

Tank 241-U-103 headspace gas and vapor characterization results for samples collected in February 1995

“…PNL and ORNL both used a gas chromatograph (GC) equipped with a mass spectrometer (MS) detector to separate, identify,' and quantitate the analytes. Descriptions of sample device cleaning, sample preparations, and analyses are given by Jenkins et al (1995a) and Ligotke et al (1995).…”

“…0 Table 4-1 lists the organic compounds positively identified and quantitated in SUMMATM samples by PNL. SUMMATM analyses were performed according to the TO-I4 methodology, except for methane analysis, which was analyzed with the inorganic gases (Ligotke et al 1995). Only 4 of the 39 TO-I4 target analytes and 7 of the 14 additional target analytes were measured to be above the 0.005 ppmv detection limit of the analyses.…”

Tank 241-U-111 headspace gas and vapor characterization results for samples collected in February 1995

“…The nitrous oxide concentration in tank U-I 11,327 ppmv, is also relatively high compared to other waste tanks sampled to date. Nitrous oxide has been detected in other passively ventilated waste tanks at average concentrations as low as about 12 ppmv in tank TX-105 (Klinger et al 1995), and as high as 868 ppmv in tank U-103 (Ligotke et al 1995). Under proper conditions, nitrous oxide can serve as an oxidizer to support combustion.…”