The attached charts show 55Fe pulse height profiles of several of the current ageing tests in progress. At the start of this 2nd round of tests, we first took a PH spectra (Q0=0) of each chamber with Argon/ethane 50:50. We then flowed (flew?) DME thru the chambers for ~ 24 hours, then switched back to ar/et and took another PH spectra (Q1=0). E12.EPS - urethane from 1st round test for comparison to E13 below E13E14.EPS - E13 - urethane (current test) E14 - Buna-N E7E8.EPS - E7 - 2 Ton epoxy E8 - ribbon cable connectors (both from 1st round for comparison to E15E16 below) E15E16.EPS - E15 - 2 Ton epoxy E16 - ribbon cable connectors E17E18.EPS - E17 - Kapton Tape (used on straws) E18 - "scintillator" glue (low viscosity epoxy used to fill voids in foil epoxy)