红:R0.1～R79.9罗维朋单位；黄:R0.1～R79.9罗维朋单位；蓝:B0.1～B49.9罗维朋单位；中性色泽:N0.1～N3.9罗维朋单位；最小读数:0.1罗维朋单位                                   Red: R0.1～R79.9 Lovibond
Yellow: R0.1～R79.9 Lovibond
Blue: B0.1～B49.9 Lovibond
Neutral: N0.1～N3.9Lovibond
Minimum reading: 0.1 Lovibond