Selelekela
Ena ke spectrophotometer e bohlale, e bonolo ea ts'ebetso le e nepahetseng haholo.
Letoto lena le fumaneha ka mehlala e latelang YYDS-23D YYDS-25D YYDS-26D
Ho nepahala ha ho pheta-pheta dE*ab≤0.02
Tumellano ea Inter-Instrument deE*ab≤0.25