Armstrong 1732 Fine Fissured Ceiling Tile, Mineral Fiber, 24 in x 24 in, Angled Tegular, 15 16 in Grid Size, White, 16 PK G3788757 000 Hz Minimum DC Voltage 000 Hz Minimum DC Voltage Measured 5 V Maximum Operating Temperature 140 Degrees F Number of Voltage Ranges 2 Maximum DC Voltage Measured 80 kV Minimum Operating Temperature 20 Degrees F Maximum AC Voltage Measured 1 The combined suffix "CH" indicates that the face mounting dimensions differ from frames with a "C" letter designation Sag Resistant Thickness 5 8 in Coverage 64 sq ft Noise Reduction Coefficient 0 Series Fine Fissured Material Mineral Fiber Color White Application Libraries Overall Length 24 in Overall Width 24 in Edge Type Angled Tegular Light Reflectance 85 % Recycled Content 73 % Resistance Properties Fire Resistive