GB/T 10345-2022 in English

Iteration of sensory evaluation operation specifications

The new standard clarifies for the first time the classification and setting of standard wine tasting glasses:

• With foot: triangular lobe design controls the volatilization rate
• Uniform marking of liquid surface excavation observation area
• Addition of 20mL reference scale line

Breakthrough in the determination of total amount of acid esters

Innovatively proposed bidirectional titration method (C7H6O3 correction system):

1. Precision improvement link: distinguish between volatile/non-volatile acids in the pretreatment stage
2. Mass concentration error is compressed from ±5% to ±1.8%

Testing laboratory upgrade path

Quality control application case

Test data comparison table of a famous liquor company

The fluctuation of total esters in Luzhou-flavor base liquor dropped from 8.7% to 3.2%
The quantitative error rate of flavor components was optimized from 18% to 5%