What is the content of QCVN 12-2:2011/BYT on national technical regulation on safety and hygiene for ruber implements, container and packaging in direct contact with foods in Vietnam?
- What is the content of QCVN 12-2:2011/BYT on national technical regulation on safety and hygiene for ruber implements, container and packaging in direct contact with foods in Vietnam?
- What are the technical requirements for national technical regulation on safety and hygiene for ruber implements, containers and packaging in direct contact with foods in Vietnam?
- Vietnam: What is the material testing method?
What is the content of QCVN 12-2:2011/BYT on national technical regulation on safety and hygiene for ruber implements, container and packaging in direct contact with foods in Vietnam?
National Technical Regulation QCVN 12-2:2011/BYT compiled by the Drafting Committee of National Technical Regulations on ruber implements, container and packaging in direct contact with foods, submitted for approval by the Department of Food Hygiene and Safety and issued under Circular 34/2011/TT-BYT dated August 30, 2011 of the Minister of Health.
National technical regulation QCVN 12-2:2011/BYT stipulating technical and management requirements on national technical regulation on safety and hygiene for ruber implements, containers and packaging in direct contact with foods (hereinafter referred to as ruber implements, containers and packaging).
National Technical Regulation QCVN 12-2:2011/BYT applies to:
- Organizations and individuals that import, produce, trade and use ruber implements, container and packaging products.
- State management agencies and other relevant organizations and individuals.
What is the content of QCVN 12-2:2011/BYT on national technical regulation on safety and hygiene for ruber implements, container and packaging in direct contact with foods in Vietnam? (Picture from internet)
What are the technical requirements for national technical regulation on safety and hygiene for ruber implements, containers and packaging in direct contact with foods in Vietnam?
Pursuant to Chapter II National Technical Regulations QCVN 12-2:2011/BYT stipulating technical requirements on national technical regulation on safety and hygiene for ruber implements, container and packaging in direct contact with foods as follows:
- Technical requirements for ruber implements, containers and packaging (not for small children):
Ruber implements, containers and packaging must meet the following general requirements:
- Technical requirements for ruber implements, containers and packaging (for children):
*Note:
- Applicable to packaging, utensils containing fat, cooking oil and foods containing fat.
- Applicable to packaging and containers of alcoholic beverages.
- Applicable to packaging and food containers with a pH greater than 5.
- Applicable to packaging and food containers with a pH of less than or equal to 5.
- Applicable to tools used at temperatures greater than 1000C, soaking conditions are 950C for 30 minutes.
- Limits on tools.
Vietnam: What is the material testing method?
Pursuant to Section 1, Appendix 1 issued together with National Technical Regulation QCVN 12-2:2011/BYT stipulates material testing methods to be carried out in 2 ways as follows:
(1) Determine Lead and Cadmium as follows:
- Prepare test solution:
Weigh 1.0 g (accurate to mg) of the sample into an evaporation crucible made of platinum, quartz or heat-resistant glass, add 2 ml of sulfuric acid, heat slowly until white smoke disappears from the sulfuric acid and Most of the sample has been charred. Then, put the crucible in an electric furnace at 450°C for complete charring. You can repeat the process of adding sulfuric acid and heating for residue on the crucible, then let it cool. residue 5ml hydrochloric acid (1/2), mix well, and evaporate on a water bath. After cooling, add 20 ml of 0.1 mol/l nitric acid, dissolve, filter and remove the insoluble portion, and collect the filtrate as the test solution.
- Prepare standard solution:
+ Cadmium:
++ Stock Cadmium standard solution:
Weigh 100 mg of cadmium, dissolve in 50 ml of 10% nitric acid, and evaporate on a water bath. Then add 0.1 mol/l nitric acid to dissolve and make up to 100 ml. This cadmium stock standard solution has a concentration of 1 mg/ml.
++ Cadmium working standard solution (not for children)
Take exactly 1 ml of cadmium stock standard solution, add 0.1 mol/l nitric acid to make 200 ml. This working standard solution has a concentration of 5 μg/ml.
++ Cadmium working standard solution (not for children)
Take exactly 1 ml of cadmium stock standard solution, add 0.1 mol/l nitric acid to make 200 ml. Continue taking 10 ml of the above solution, add 0.1 mol/l nitric acid to make 100 ml. This working standard solution has a cadmium concentration of 0.5 μg/ml.
+ Lead:
++ Lead standard solution:
Dissolve 159.8 mg of lead(II) nitrate in 10 ml of 10% nitric acid, and add distilled water to make 100 ml. This stock lead standard solution has a concentration of 1 mg/ml.
++ Lead working standard solution (not for children)
Take exactly 1 ml of stock lead standard solution, add 0.1 mol/l nitric acid to make 200 ml. This working standard solution has a concentration of 5 μg/ml.
++ Lead working standard solution (not suitable for children)
Take exactly 1 ml of stock lead standard solution, add 0.1 mol/l nitric acid to make 200 ml. Continue taking 10 ml of the above solution, add 0.1 mol/l nitric acid to make 100 ml. This working standard solution has a lead concentration of 0.5 μg/ml.
- Proceed:
Use atomic absorption spectroscopy or plasma emission spectroscopy to determine cadmium and lead in test solutions.
(2) Determination of 2-mecaptoimidazolin:
- Prepare test solution:
Take 1.0 g of sample into a cylindrical filter paper tube, and use a Soxhlet extraction system to extract for 8 hours with about 45ml of methanol. Concentrate the extract to approximately 1 ml and use 10 μl as the test solution.
- Prepare standard solution:
Take 200 mg of mercaptoimidazolin-2 and dissolve in methanol to make 100 ml. Continue to take 1 ml of this solution and add methanol to make 100 ml. The standard solution has a 2-mercaptoimidazoline concentration of 20 μg/ml.
- Prepare a solution of 2,6-dichloroquinone clorimide in ethanol: Dissolve 100 mg of 2,6-dichloroquinone clorimide in ethanol to make 10 ml.
- Proceed:
+ Conduct thin layer chromatography for the test solution and 2-mercaptoimidazolin standard solution, using the standard solution as reference solution.
Use a mixture of ethyl acetate and benzene at a ratio of 5:1; mixture of ethyl acetate, methanol, ammonia solution and water in ratio 30:2:1:1 as developing solvent. The thin plate used silica gel as the adsorbent and was dried for 1 hour at 120oC.
When the solvent layer has expanded to about 10cm, stop expanding and let it dry naturally. Then, spray 2,6-dichloroquinone clorimide solution in ethanol, dry for 10 minutes at 120oC and observe.
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