Here's a ongoing summary of the substrate aging tests.

S1600619

Mark Optics with polished edges and CO2 polished, stored in the CR0 vacuum chamber.

S1600623

Mark Optics with polished edges, stored in standard wafer container in the dessicator cabinet

S1600624

Mark Optics with polished edges, stored in standard wafer container in vacuum sealed envelope with dessicant

S1600620

Mark Optics with polished edges and CO2 polished, stored in standard wafer container in the dessicator cabinet

S1600621

Mark Optics with polished edges, stored in standard wafer container in vacuum sealed envelope with dessicant