Table 1.

A series of FPAs of six cellulase preparations with the IUPAC method.

	Cellulase dilution	Cellulase concentration	FPA (IU/ml)
Youtell	189	0.0053	69.9
RCconc	130	0.0077	48.1
R-10	109	0.0092	40.7
Lerkam	63	0.0159	23.3
Yishui	24	0.0442	8.4
Sinopharm	21	0.0476	7.7