Test methods of enzymes, catalog, Chinese national standards
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GB/T 8622 Determination of urease activity in soya bean products for feeds
GB/T 18634 Determination of feed phytase activity - Spectrophotometric method
GB/T 23195 Method for the determination of catalase in bee pollen - Ultaraviolet spectrophotometry
GB/T 23874 Determination of xylanase activity in feed additives - Spectrophotometric method
GB/T 23881 Determination of feed cellulase activity - Filter paper assay method
GB/T 25877 Starch gel electrophoresis isozyme analysis
GB/T 25879 Determination of lysozyme in chicken egg white - Spectrophotometry
GB/T 28715 Determination of acidic and neutral protease activity in feed additives - Spetrophotometric method
GB/T 33409 Determination of the activity of beta-galactosidase - Spectrophotometric method
GB/T 33410 Determination of the activity of protease K in biochemical reagents
GB/T 34222 Determination of the activity of ribonuclease
GB/T 34223 Determination of the purity of ribonuclease and desoxyribonuclease
GB/T 35538 Technical guides for industrial enzyme preparations assay
GB/T 39030 Technical specification of physiological activity evaluation for enzyme preparations
GB/T 41906 Assay method of superoxide dismutase activity
GB/T 41907 Assay method of enterokinase activity