Steamer Mat China GB4806 Testing Process
Date：2025-09-15 10:04:49 Classification
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Food Contact Materials (FCM) refer to materials that come into contact with food under normal or foreseeable conditions of use and do not themselves constitute part of the food. The complete process and key points for testing steamer mats in accordance with China's GB4806 Food Contact Materials Standard, compiled based on national standard requirements and laboratory operating procedures:
I. Applicable Testing Standards and Scope
1. Core Standards
- GB4806.11-2016 "National Food Safety Standard - Rubber Materials and Products for Food Contact"
- New Requirements (Revised in 2024):
- Migration of Aromatic Primary Amines: Not Detectable (Detection Limit ≤ 0.01 mg/kg)
- N-Nitrosamines and Their Derivatives: Not Detectable (Applicable to products containing vulcanizing agents)
2. Special Scenario Supplement
- If steamer mats contain adhesives/coatings, they must also comply with GB4806.10 "Paints and Coatings."
- Reusable products must undergo three cycles of testing (potassium permanganate consumption is determined based on the third result).
II. Testing Process
1. Preliminary Preparation
- Sample Requirements:
- Submit ≥ 3 complete finished products for testing (different batches must be separated).
- Provide a list of materials (e.g., natural rubber, silicone) and a production process description.
- Key documents:
- Product instructions (indicate the operating temperature range)
- Declaration of Conformity (must indicate "food contact")
- Copy of business license (with official seal)
2. Laboratory Testing Items
| Test Category | Test Items
| Chemical Migration | Total Migration (4% acetic acid, vegetable oil simulant)
| Heavy Metals (as Pb)
| Potassium Permanganate Consumption
| Newly Added Risk Substances | Aromatic Primary Amines, N-Nitrosamines
| Sensory Testing | Color, Odor
3. Selecting a Testing Agency
- Must hold CMA (China Metrology Accreditation) and CNAS (National Accreditation Service) certification.
- Preference is given to laboratories drafting the new standard (e.g., Dezewei Testing).
4. Timeline and Cost
- Regular Turnaround: 5-7 working days (up to 10 days for complex projects)
- Basic Fee: Approximately 1,000-3,000 RMB (including high-temperature migration testing)
- Expedited Fee: 30% increase for a reduction to 3 days
III. Common Failure Causes and Solutions
| Problem Types | Typical Cases
| Chemical Exceedance | Excessive Migration of Plasticizer DEHP (Cheap Rubber Raw Materials)
| Missing Labeling | No "Food Contact" Label or Missing Declaration of Conformity
| Omission of High-Temperature Testing | Excessive Migration Due to Failure to Simulate a Steam Environment
IV. Post-Certification Maintenance Requirements
1. Annual Sampling Inspection: 10% of products must be retested annually.
2. Change Management: Retesting is required after any adjustments to the material formula or process.
3. Labeling Specifications:
- Product packaging must include:
- "Food Contact" label
- Applicable Temperature Range (e.g., "Heat Resistant -20°C to 120°C")
- Manufacturer's Name and Address
Shen Gongwang Security: 44030602006947