A.I 級B.II 級C.III 級D.IV 級
A.ONSB.TENC.PPND.TPNE.CPN
A.1.0~1.5g/(kg·d)B.1.5~2.0g/(kg·d)C.1.8~2.0g/(kg·d)D.2.0~2.5g/(kg·d)E.0.5~1.0g/(kg·d)