DESCRIPTION
The AVI Calibration Methane Cell is the reference material used to calibrate the wavenumber and lineshape measurements of FT-IR spectrometers. This cell consists of two Cell Windows (L1201975), a Cell Ring (L1201681), and a Cell Spacer (L1201680). One atmosphere of methane gas is inserted into the assembled window. The cell is inserted into the spectrometer's slide holder and it's wavenumber and line shape are recorded.