Food-grade plastic boxes, China GB4806 report processing
Date：2026-06-04 10:03:14 Classification
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Guidelines for Reporting Food-Grade Plastic Containers under China GB4806
I. Applicable Standards and Regulatory Basis
Food-grade plastic containers sold in the Chinese market must comply with GB 4806.1 "National Food Safety Standard - General Safety Requirements for Food Contact Materials and Articles" and implement the specific requirements of GB 4806.7 "National Food Safety Standard - Plastic Materials and Articles for Food Contact".
Basic Standard: GB 4806.1 (General Requirements)
Specialized Standard: GB 4806.7 (Plastics)
Supporting Standards: GB 31604.1~52 series (Methods for Detecting Migrants), GB 5009.156 (Pretreatment for Migration Tests)
Labeling Standards: GB 4806.1 and "General Rules for Labelling of Food Contact Materials and Articles"
II. Core Testing Items
| Testing Category | Main Items | Limit Requirements
| Sensory Requirements | Color, Normal Odor, Decolorization Test | Immersion solution should be free of obvious turbidity, sediment, etc.
| Total Migration | Simulated solutions such as distilled water, 4% acetic acid, 10% ethanol, and olive oil | ≤10 mg/dm²
| Heavy Metals | Specific migrations of lead (Pb), cadmium (Cd), arsenic (As), etc. | Lead ≤1 mg/kg, cadmium ≤0.5 mg/kg, etc.
| Specific Migrants | Monomers and additives (such as phthalates, phenols, etc.) | Depends on specific material
| Decolorization test | Decolorization after immersion in 50% ethanol | Negative
| Microbial limits | Some disposable products | According to relevant standards
Specific migration and additive limits vary for different resin materials (PP, PE, PET, PC, PS, etc.). The laboratory will determine the specific testing items based on the material formulation.
III. Application Process
1. Preliminary Preparation
Determine the specific material (PP, PE, PET, PC, etc.) and intended use (room temperature/heating/microwave) of the plastic box.
Prepare samples: It is recommended to have at least 5-10 complete finished products for each material/color (approximately 500cm² contact area).
Collect product information sheets and ingredient formulas.
2. Select a Testing Institution
Select a third-party laboratory with CMA + CNAS accreditation (e.g., Dezewei Testing CNAS registration number: L8083).
Confirm that the laboratory can issue a full-item test report conforming to GB 4806.
The institution's qualifications can be verified through the website of the Certification and Accreditation Administration of the State Administration for Market Regulation.
3. Application for Testing
Fill out the testing application form and provide the material formula and product specifications.
The laboratory determines the specific testing plan based on the material.
Sample submission for testing.
4. Laboratory Testing
Conduct migration tests according to GB 5009.156 and GB 31604 series standards.
Evaluate compliance after data issuance.
5. Report Issuance
Issuance of Chinese version CMA/CNAS test report
Report content includes all test items, limits, test results, and judgment conclusions
The report will indicate "Qualified" or "Unqualified" conclusion
IV. Required Documents
1. Product Testing Application Form
2. Product Information Sheet (material, applicable temperature range, etc.)
3. Ingredient Formulation Sheet (If commercial secrets are involved, a confidentiality agreement can be signed with the institution)
4. Samples (multiple colors and batches of samples are recommended)
5. Copy of Business License
V. Cycle, Fees, and Validity
Testing Cycle: Usually 5-7 working days (including migration test period)
Fee Range: Approximately 1000-3000 RMB, depending on the specific project
Report Validity: Usually [duration missing] 3-5 years, but annual retesting or retesting upon major changes is recommended.
VI. Key Considerations
Material Determines Items: PP, PE, and PET have significantly different testing items; precise confirmation of resin type is necessary.
Usage Conditions are Critical: Whether the product comes into contact with acidic, alcoholic, or oily foods, and whether heating is involved, will affect the selection of the simulant.
Labeling Compliance: Product packaging must comply with food contact material labeling requirements (e.g., "for food contact use," material labeling, precautions, etc.).
Stricter Requirements for Infant and Toddler Products: If used for infants and toddlers, stricter specific migration limits should be used.
Formula Changes Require Retesting: Retesting should be conducted promptly if raw materials or suppliers change.
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