What is the standard colorimetric plate for the determination of flesh color?

The colorimetric plate for meat color determination is also called meat quality colorimetric card. The colorimetric plate shows that the meat color of pork chops is from 1 to 6. Arts and science are from 1 to 10.

Standard colorimetric plate technical parameters for determination of flesh color:

The flesh color scores of five cross-sections of eye muscles on the US NPPC colorimetric plate were arranged from light to dark for quantitative assessment of flesh color.

1 point = grayish white (abnormal flesh color)
2 = Mild gray (tendency to abnormal flesh color)
3 = normal bright red
4 points = slightly dark red (normal flesh color)
5 points = dark purple (abnormal flesh color)

1 divided into fatty traces;
2 points for fat trace;
3 in the amount of fat;
4 is divided into more fat;
5 is divided into excessive fat.
A 0.5 score is allowed between two points