Spectrosil WF Quartz Outer Window (Optistat CF/DN new style)

Spectrosil WF Quartz Outer Window (Optistat CF/DN new style) Spectrosil WF is a water free synthetic vitreous silica. It has the same material characteristics as Spectrosil B, but has a transmission range which extends further into the IR. The transmission data is for a 2 mm thick window. Measuring 42mm diameter x 2mm thick