GB 1352-1986
Replaced
T/CGTA 02-2024
Active
Group standards
T/CGTA 02-2024 Cadmium contaminated rice safety utilization technical specification: Organic acid soaking method
T/CGTA 02-2024 Cadmium contaminated rice safety utilization technical specification: Organic acid soaking method
Price:
$ 20.00
Basic Information
Standard Code:
T/CGTA 02-2024
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Food processing and products
ICS Name:
Cereals, legumes, and their products
Publish Date:
2024-09-20
Implement Date:
2024-11-20
Scope
Scope: This document specifies the terms and definitions, processes, and quality control requirements for the safe utilization of cadmium-contaminated rice. This document applies to the disposal of cadmium-contaminated rice. Main Technical Content: 4. Processes and Quality Control 4.1 Reagents and Materials The reagents and materials used shall meet food safety requirements. 4.1.1 Citric Acid: Food grade, with a content of not less than 98%. 4.1.2 Citric Acid Solution: Dissolve and mix citric acid and water in a mass ratio of 2:98. 4.2 Main Processes Rice processing: - Precision milling of rice to meet the requirements of GB 1354; - If it is finished rice or broken rice, no further processing is required. 4.3 Rice Sample Collection Collect 20kg of rice samples according to GB/T 5491. 4.4 Cadmium Content Monitoring of Soaked Rice Samples - Place the rice samples in a soaking tank. Add about twice the dry weight of rice with citric acid solution, stir evenly, and flatten the surface so that the soaking solution covers and maintains a level 2cm above the rice surface. Soak at 30°C for 12-18 hours. Drain the soaking solution and dry the rice. The drained soaking wastewater shall be treated in accordance with regulations. 4.5 Cadmium Content Monitoring of Soaked Rice Samples 4.5.1 Drying of Soaked Rice Samples - Take 100g of drained rice samples according to GB/T 5491 and dry them at 105°C-130°C until the weight of the rice samples remains essentially unchanged (about 240 minutes). 4.5.2 Cadmium Content Monitoring - Determine the cadmium content in the dried rice samples according to GB 5009.15. 4.6 Determining the Number of Soaking Cycles for Rice to be Processed 4.6.1 Soaking Cycles for Rice Used in Non-rice Protein Production - If the cadmium content does not exceed 0.2mg/kg, proceed to the next process; if it exceeds 0.2mg/kg, repeat steps 4.5 and 4.6 until the cadmium content in the dried rice samples drops below 0