GB 4789.23-2024 English PDF (GB4789.23-2024)

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GB 4789.23-2024: National Food Safety Standards--Food Microbiological Inspection--Soy Product Sampling and Sample Processing
GB 4789.23-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
National Food Safety Standard – Food Microbiological
Examination – Sampling and Sample Treatment of Bean
Products
ISSUED ON: FEBRUARY 8, 2024
IMPLEMENTED ON: AUGUST 8, 2024
Issued by: National Health Commission of the People’s Republic of China;
State Administration for Market Regulation.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Equipment and Materials ... 4
3 Sampling ... 4
4 Sample Treatment ... 5
5 Inspection ... 6
National Food Safety Standard – Food Microbiological
Examination – Sampling and Sample Treatment of Bean
Products
1 Scope
This Standard specifies the sampling and sample treatment method of bean products.
This Standard is applicable to the sampling and sample treatment of bean products.
2 Equipment and Materials
2.1 Sampling tools
The sampling tools shall be made of stainless steel or other materials of appropriate strength,
with smooth surfaces, no gaps, and rounded corners. The sampling tools shall be clean and
sterile and kept dry before use. The sampling tools include stirring utensils, sampling spoons,
spoons, cutlery (knife or spatula), scissors, etc.
2.2 Sample container
The material (such as glass, stainless steel, plastic, etc.) and structure of the sample container
shall be able to fully ensure the original state of the sample. Containers and lids shall be clean,
sterile, and dry. The sample container shall be of sufficient volume so that the sample can be
fully mixed before testing. The sample containers include sampling bags, sampling tubes,
sampling bottles, etc.
2.3 Other supplies
It includes alcohol lamp, thermometer, aluminum foil, sealing film, markers, sampling
registration form, etc.
3 Sampling
3.1 Sampling principles and sampling plan
The sampling principles and sampling plans shall be implemented in accordance with the
provisions of GB 4789.1.
The number of sampling pieces n shall be implemented in accordance with the requirements of
relevant food safety standards. The sampling volume of each sample shall be no less than 5
times the sample of the inspection unit, or determined according to the purpose of inspection.
The following specifies the sampling requirements for a food sample.
3.2 Prepackaged bean products
3.2.1 Solid bean products with an independent packaging volume of less than or equal to 1000g,
or liquid bean products with an independent packaging volume of less than or equal to 1000mL
shall be individually packaged in the same batch.
3.2.2 Liquid or semi-solid bean products with an independent packaging volume of larger than
1000mL, the liquid shall be shaken or stirred with a sterile rod before sampling to make it
uniform and then an appropriate amount of sample shall be collected. If the sample cannot be
mixed evenly, representative samples shall be taken from various parts of the sample container;
and then placed in the same sterile sampling container as a food sample. Solid bean products
with an independent packaging volume of larger than 1000g, appropriate samples shall be taken
from different parts of the same package using a sterile sampler and placed in the same sterile
sampling container as a food sample.
3.3 Bean products made in bulk or on site
3.3.1 The samples shall be thoroughly stirred and mixed. Use sterile sampling tools to collect
samples from 5 different parts and put them into the same sterile sampling container as a food
sample. If the samples cannot be mixed uniformly, take representative samples from various
parts of the same package.
3.3.2 If the number of samples is less than the number specified in the corresponding standard
or is installed in a single large container such as a barrel or a box, a certain amount of
representative samples that have been mixed evenly shall be collected in proportion and put
into a sterile sampling container. Sampling after mixing evenly. If the samples cannot be mixed
uniformly, take representative samples from various parts of the same package.
3.3.3 When collecting samples of fermented bean curd, smelly bean curd and other bean
products, if the product label indicates that the liquid part (such as marinade, etc.) is also edible,
the representative sample shall contain both solid matter and marinade.
3.4 Storage and transportation of samples
It shall be implemented in accordance with the provisions of GB 4789.1.
4 Sample Treatment
4.1 Unpack the packaging