T/YNZJ 013.4-2026 Active Group standards

T/YNZJ 013.4-2026 Determination of Maba Kun Residue in Tea and its Products and Alternative Teas by Gas Chromatography

T/YNZJ 013.4-2026 Determination of Maba Kun Residue in Tea and its Products and Alternative Teas by Gas Chromatography

Publish Date: 2026-01-09 Implement Date: 2026-01-09 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/YNZJ 013.4-2026

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Technical management

ICS Name: Tea

Publish Date: 2026-01-09

Implement Date: 2026-01-09

Scope

This standard specifies the determination of paraquat residues in tea and its products and substitute teas by gas chromatography. It is applicable to the determination of paraquat in fresh tea leaves, tea, tea-containing products, and substitute teas. Other matrices can be referenced for implementation. The quantitative limit of the standard is 0.01 mg/kg. The standard stipulates the requirements for reagents, consumables, equipment, and data processing, and specifies the main technical content such as sample pretreatment process and instrument analysis conditions, ensuring the scientificity, standardization, and operability of the method.

Development Information

Same series standard

T/YNZJ 013.1-2026 Determination of pesticide and metabolite residues in tea and its products and alternative teas: General principles T/YNZJ 013.2-2026 Determination of Residues of 14 Pesticides and Their Metabolites in Tea and Its Derivatives and Alternative Teas by Gas Chromatography-Mass Spectrometry T/YNZJ 013.3-2026 Determination of Residues of Ethephon and Chlorpyrifos in Tea and its Derivatives and Substitute Teas by Gas Chromatography-Mass Spectrometry T/YNZJ 013.5-2026 Determination of Methyl Bromide Residues in Tea and Its Products and Substitute Tea by Headspace-Gas Chromatography Method T/YNZJ 013.6-2026 Determination of Residual Levels of Lorsban in Tea and Its Derivatives and Alternative Teas by Liquid Chromatography-Mass Spectrometry T/YNZJ 013.7-2026 Determination of Residues of 14 Pesticides and Their Metabolites in Tea and its Products and Alternative Teas by Liquid Chromatography-Mass Spectrometry

Related Standards

GB/T 9172-1988 Abolished

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Publish Date: 1988-04-30

GB/T 14487-1993 Replaced

GB/T 14487-1993 The terms of tea sensory tests

Publish Date: 1993-06-19

GB/T 14456-1993 Replaced

GB/T 14456-1993 Green tea

Publish Date: 1993-09-07

GB/T 13738.1-1997 Replaced

GB/T 13738.1-1997 The first set of broken black tea

Publish Date: 1997-06-16

GB 18665-2002 Replaced

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Publish Date: 2002-03-05

GB/T 9833.1-2002 Replaced

GB/T 9833.1-2002 Brick tea—Hua zhuan tea

Publish Date: 2002-03-14