Compliance Report for Metal Tableware Coatings (China GB 4806.10-2025)
Date：2026-09-15 09:54:04 Classification
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Key Points for Preparing GB 4806.10-2025 Compliance Reports for Metal Tableware Coatings
I. Product Applicability Analysis
Coatings on metal tableware fall squarely within the scope of GB 4806.10-2025. Examples include, but are not limited to:
Anti-rust or decorative coatings on stainless steel tableware
Anodized layers on aluminum tableware (applicability regarding coating requirements depends on the specific manufacturing process)
Anti-rust coatings on iron tableware (e.g., primers applied prior to enameling)
Surface protective coatings on copper tableware
Coatings on metal components within composite tableware
A crucial factor to consider is whether the coating comes into direct contact with food. If a coating is applied solely to the exterior surface (for decorative purposes), other relevant GB 4806 standards may apply; however, coatings on inner walls, food-contact surfaces, or areas that come into contact with the mouth must comply with the requirements of GB 4806.10-2025. II. Key Testing Items
1. Basic Physical Properties
Sensory evaluation: Normal color/appearance, no off-odors, and no flaking or detachment.
Coating adhesion: Ensures the coating does not peel off or enter the food during use.
2. Specific Migration (Priority Focus)
Overall migration: Total amount of substances released under simulated food-contact conditions.
Specific element migration: Depending on the coating formulation, this may involve the migration of metal elements such as lead, cadmium, arsenic, antimony, barium, chromium, nickel, and aluminum.
Formaldehyde migration (for certain resin-based coatings)
Free phenols (for phenolic coatings)
Epichlorohydrin (for epoxy coatings)
3. Additive and Monomer Requirements
Raw materials used in the coating formulation must comply with basic standards such as GB 4806.1 and the relevant requirements of GB 9685 (Standard for the Use of Additives in Food-Contact Materials and Articles).
4. Labeling Requirements
Products must be marked with the phrase "For Food Contact Use" or a similar indicator.
Information required includes manufacturer details, material specifications, applicable standards, and warning statements (where applicable).
III. Simulation of Testing Conditions
Testing typically simulates actual food-contact scenarios:
| Simulated Food Type | Examples of Applicable Products
| Aqueous food simulants (water, 4% acetic acid) | Tableware, soup pots
| Acidic food simulant (4% acetic acid) | Jam bowls, yogurt spoons
| Alcoholic simulants (10%/20% ethanol) | Wine sets, coated wine glasses
| Fatty food simulant (vegetable oil) | Oil dispensers, frying pans
| Special high-temperature conditions (e.g., boiling at 100°C) | Cookware
Testing conditions (duration and temperature) must be determined based on the product's intended use under the most rigorous conditions. IV. Compliance Reporting Process
| Stage | Tasks | Estimated Duration
| ① Preliminary Consultation | Clarify product material, coating type, food contact type, and intended conditions of use
| ② Documentation Preparation | Provide formulation details (critical), product samples, user manuals, and intended use descriptions
| ③ Sample Submission & Application | Mail samples to a qualified testing agency and complete the application form
| ④ Laboratory Testing | Conduct full-scope testing in accordance with GB 4806.10-2025
| ⑤ Report Issuance | Issue a CNAS/CMA compliant test report upon passing
| ⑥ Rectification & Retesting (if failed) | Adjust formulation or process based on non-compliant items and resubmit for testing
Total Duration: Typically 15–25 working days, depending on test complexity and laboratory scheduling.
V. Required Materials for Submission
Testing application form (must specify product usage, food contact type, and usage temperature/duration)
Coating formulation details: Coating model, supplier, and main ingredients (determines specific migration test requirements)
Finished product samples: Intact coating, representative of the product; 5–10 units recommended
Product manual/packaging design draft
Manufacturer information (business license, contact details)
Formulation details are crucial: Testing parameters and limit requirements vary significantly across coating systems (e.g., epoxy-phenolic, silicone, PTFE, ceramic coatings); providing the formulation prevents missing key tests.
VI. Cost Reference
Costs depend primarily on factors such as coating type, number of test items, and types of food simulants used:
Basic full-scope testing (overall migration + migration of key elements): Approx. 800–3,000 RMB
Coatings for metal tableware intended for infants and young children may require additional specific tests, increasing the cost accordingly.
VII. Recommendations
1. Prioritize Qualifications: Select a testing agency holding dual accreditation from CNAS (China National Accreditation Service for Conformity Assessment) and CMA (Provincial Administration for Market Regulation)—such as Dezewei Testing (CNAS Reg. No.: L8083). This ensures the report is valid nationwide, accepted by e-commerce platforms, and recognized for customs clearance. 2. Communication regarding formulation is crucial: It is recommended to fully discuss the coating type with the testing engineer before submission—providing the MSDS or technical documentation from the coating supplier if necessary—to avoid missed test items or incorrect assessments.
3. Pay attention to the general requirements of the GB 4806 series: While GB 4806.10-2025 is the specific standard for coatings, compliance with supporting standards—such as GB 4806.1 (general safety requirements), the GB 31604 series (migration test methods), and GB 9685 (use of additives)—is also mandatory.
4. Stricter requirements for infant and toddler products: For coatings on metal tableware intended for infants and toddlers, it is advisable to confirm in advance with the testing agency whether compliance with the stricter limits and additional test items specified in GB 4806.10 is required.
5. Report validity: Compliance reports do not have a fixed expiration date; however, e-commerce platforms, supermarkets, and distributors typically require reports issued within the past year. Retesting is required if there are changes to the formulation, manufacturing process, or raw material suppliers.
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