This requirement is for four optical emission spectrometers and ancillary equipment in accordance with the statement of work. This includes two each benchtop optical emission spectrometers with ancill... This requirement is for four optical emission spectrometers and ancillary equipment in accordance with the statement of work. This includes two each benchtop optical emission spectrometers with ancillary equipment to be installed and two each portable optical emission spectrometer with ancillary equipment.