Xylanase Assay Kit (Azo-Wax) (K-AZOWAX)

How is the Tris Buffer solution prepared for use in the Xylanase Assay Kit (K-AZOWAX)?
Wed, 30 Mar, 2016 at 4:39 PM
I have assayed the Aspergillus xylanase standard with the Xylanase Assay Kit (K-AZOWAX) using the suggested dilution of 1:100 and am getting an OD of only 0.03.
Wed, 30 Mar, 2016 at 4:40 PM