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GB 4789.42-2025 English PDF

GB 4789.42-2025 English PDF

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GB 4789.42-2025: National food safety standard - Food microbiological examination - Examination of Norwalk Viruses

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Scope

This Standard specifies the real-time fluorescence RT-PCR examination method for Norovirus
in foods.
This Standard is applicable to the detection of Norovirus in shellfish, raw vegetables, hard
surface foods, soft fruits and packaged drinking water.

Basic Data

Standard ID GB 4789.42-2025 (GB4789.42-2025)
Description (Translated English) National food safety standard - Food microbiological examination - Examination of Norwalk Viruses
Sector / Industry National Standard
Classification of Chinese Standard X09
Word Count Estimation 18,145
Date of Issue 2025-03-16
Date of Implementation 2025-09-16
Issuing agency(ies) National Health Commission of the People's Republic of China, State Administration for Market Regulation


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