... sample blank method, fixed-point absorbance measurement, quality control measurement, quality control Drawing and turbidity spectrum method.Results Print: built ... computer to print, print measurements in real time, comprehensive laboratory quality control data and report card. Data storage: 200 ... 505,546,578,630 (nm) arbitrary choice of eight wavelengthTemperature Control: 25 °C, 30 °C, 37 °C and room ...