GB/T 18525.2-2026Irradiation processing practice for agricultural products - Part 2: Cereals and their products (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part

1.Structure and Drafting Rules of Standardization Documents". Drafting. This document is Part 2 of GB/T 18525 "Irradiation Processes for Agricultural Products". GB/T 18525 has already published the following parts.

1.Legumes and their products;

2.Cereals and their products;

---Irradiation process for insect control and mold prevention in dried shiitake mushrooms (GB/T 18525.5);

6.Dehydrated Vegetables;

7.Spices and Seasonings;

8.Cooked Meat Products;

11.Dried Longan;

12.Pollen. This document replaces GB/T 18525.2-2001 "Irradiation Pesticide Process for Cereal Products". Compared with GB/T 18525.2-2001, except for the structure... Aside from adjustments and editorial changes, the main technical changes are as follows:

a) The scope has been changed (see Chapter 1, Chapter 1 of the.2001 edition);

b) Added terms and definitions for "process dosage," "dosage non-uniformity," and "dosage distribution test" (see 3.4-3.6), and changed "grains." Terms and definitions for "and its products", "minimum effective dose", and "maximum tolerated dose" (see 3.1-3.3,.2001 edition 3.1-3.3). 3.3);

c) The requirements for "radiation devices" have been changed (see Chapter 4,

5.1 of the.2001 edition);

2 Cereals and their products

1.Scope This document specifies the irradiation equipment, pre-irradiation requirements, irradiation process, post-irradiation procedures, and recording for the irradiation of grains and their products for insecticidal and bactericidal purposes. And document management requirements. This document applies to the irradiation of grains and foods made from grains that have undergone primary or advanced processing for pest and bacteria control. deal with.

4 Irradiation device

4.1 Irradiation devices shall comply with relevant provisions such as GB/T 17568 and GB/T 25306.

4.2 The irradiation device shall be a gamma-ray device that produces 60Co or 137Cs radionuclides, or an accelerator with an electron beam energy not exceeding

10 MeV. The device and the X-ray device that meets the relevant standards.

6 Irradiation process

6.1 Irradiation Operation According to the irradiation process documentation, the equipment operating parameters and loading mode were set, and the irradiation was organized. The irradiation device, related parameters, and online production were also monitored. The product circulation process is monitored and recorded.

6.2 Dose Monitoring According to the irradiation process documentation, monitoring dosimeters are deployed for measurement and recording. The dosimeter measurement system is selected according to GB/T 16640. Select and regularly trace back to the national absorbed dose standard.

6.3 Interruption Assessment If the irradiation process is interrupted, the impact on the absorbed dose of the product should be assessed, and the subsequent processing procedures should be recorded.

6.4 Repeated irradiation Repeated irradiation may be performed to control pest infestation. The cumulative dose should not exceed the maximum tolerable dose of the grain (see 5.2.2).

7 Post-irradiation management

7.1 Storage Irradiated and unirradiated products should be stored separately. The storage environment should meet the temperature, humidity, and other conditions required by the product.