T/GZTSS 1-2021 Active Group standards

T/GZTSS 1-2021 Determination of the Content of Tea Amine and Caffeine in Tea by Near Infrared Diffuse Reflectance Spectroscopy

Publish Date: 2021-10-28 Implement Date: 2021-11-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/GZTSS 1-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Drinks

ICS Name: Tea

Publish Date: 2021-10-28

Implement Date: 2021-11-01

Scope

Main technical content: This standard specifies the scope of the near-infrared diffuse reflectance spectroscopy method for determining the content of theanine and caffeine in tea, normative reference documents, terms and definitions, principles, requirements, analysis steps, selection of calibration and verification sample sets, determination of sample reference data, preprocessing of spectral data, establishment and verification of calibration models, result presentation, and detection report requirements. This standard is applicable to the rapid determination of the content of theanine and caffeine in tea in the near-infrared spectral region (12,800 cm-1 to 4,000 cm-1 or 780 nm to 2,500 nm). The minimum detection limit of this method is 0.1%.