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AMoN Bodies and Travel Blanks Portland, Oregon April 2012

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Cleaning Radiello Bodies Single wash with DI water and sonication Triple wash with DI water and sonication Above, followed by vacuum desiccator (7 days) - filter paper (with citric acid) - radiello core (with phosphoric acid) X X X

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762241,359308

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Scanning Electron Microscopy Three bodies tested New blue sampler body Used, unwashed blue sampler body Used white sampler body All sampler bodies ~uniform in appearance No visual difference between used blue sampler bodies and new blue sampler bodies Visual differences between blue sampler bodies and white sampler bodies

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White BodyBlue Body SEM: 100x magnification, interior wall

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SEM: 500x magnification Blue BodyWhite Body

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SEM: 8,000x magnification Blue BodyWhite Body

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Mercury Intrusion Porosimetry Results Porosity (%) Test ACYSBAAA 148.6447.6548.00 251.4751.2351.29 356.9454.0548.77 452.0350.9550.00 Mean52.2750.9749.52

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Mercury Intrusion Porosimetry Results Median Pore Diameter ( m) Test ACYSBAAA 143.6835.7238.82 241.7438.1443.23 346.7641.4241.63 437.0035.8338.99 Mean42.3037.7840.67