We've introduced extensive improvements & created the innovative, user-friendly K-CELLG5 Kit!
The CELLG5 assay represents a huge step forward in the methodology for the measurement of cellulase that traditionally relied on substrates such as CM-cellulose, Avicel, cellooligosaccharides, filter paper or dyed polysaccharides including CMC Congo red or cellulose azure.

https://secure.megazyme.com/Cellulose-Assay-Kit-CELLG5-Method