Glass food storage container China GB4806 test report process
Date：2026-06-10 09:40:12 Classification
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Procedure for Obtaining a GB4806 Test Report for Glass Food Storage Containers in China
Glass food storage containers are food contact materials. Their production, sale, or import into China must comply with GB4806.5, "National Food Safety Standard for Food Contact Glass Materials and Products." Below is the complete procedure and key points.
I. Why are GB4806 tests required for glass food storage containers?
Mandatory Regulatory Requirements: Glass food storage containers come into direct contact with food and are therefore considered food contact materials. They must pass national food safety standard testing before being sold on the market.
E-commerce Platform Entry: Platforms such as Tmall, JD.com, and Douyin all require merchants to provide food contact product testing reports.
Market Supervision and Sampling Inspections: Products that do not meet the standards will face removal from shelves, penalties, and even recalls.
Core Risk Substances:
Heavy metals such as lead and cadmium (potentially introduced during glass production)
Total Migration (Specific Migration and Total Migration)
Sensory Requirements (Discoloration, Odor)
Thermal Shock Resistance (Temperature Difference Resistance)
II. Core Testing Items (Based on GB4806.5)
| Testing Item | Limit Requirements | Remarks
| Lead (Pb) Migration | ≤ 0.8 mg/dm² | Key Concern for Glass Materials
| Cadmium (Cd) Migration | ≤ 0.07 mg/dm² | Key Concern for Glass Materials
| Total Migration | ≤ 10 mg/dm² | Simulating Different Food Contact Environments
| Sensory Testing | Discoloration Test, Odor | Glass Transparency Requirements
| Thermal Shock Resistance | Temperature Difference ≥ 95℃ | Essential Item for Glass Food Storage Containers
| Physicochemical Indicators | Meets Relevant Food Safety Requirements | Comprehensive Judgment
Note: If the product contains a plastic cap or silicone sealing ring, additional testing according to GB4806.7 (plastics) or GB4806.11 (rubber) is required.
III. Processing Procedure (6 steps)
1. Consultation and Solution Confirmation
Communicate with the testing agency regarding product material, capacity, and whether it includes a cap.
Clarify the testing standards (GB4806.5 + mating parts standards).
Confirm the sample quantity and testing cycle.
2. Sample Preparation
Recommended to send: 4-6 finished products (some items require parallel testing).
Samples must be complete, packaged finished products to avoid damage during transportation.
If there is a plastic cap/silicone ring, the entire product must be provided.
3. Disassembly and Pre-treatment
The laboratory cleans and pre-treats the samples by soaking.
Simulate actual usage conditions (e.g., heating, refrigeration).
4. Laboratory Testing
Use Detection of heavy metal migration using instruments such as ICP-OES and atomic absorption spectroscopy
Simulated liquid immersion (4% acetic acid, 10% ethanol, etc.)
Sensory and physicochemical performance testing
5. Result Evaluation
Comparison of detected values with GB4806.5 limits
Comprehensive determination of product compliance
6. Report Issuance
Chinese version of CMA/CNAS test report issued within 5-7 working days
Report includes detected values, limits, conclusions, and testing basis
IV. Fees and Timeframe Reference
| Item | Description
| Testing Timeframe | 5-7 working days (expedited service can be shortened to 3 days)
| Fee Range | 800-2000 RMB (depending on the complexity of accessories)
| Report Validity | Usually 1-3 years (determined by product formulation stability)
| Qualification Requirements | Choose an institution with CMA + CNAS accreditation
V. Recommended Testing Institutions
Dezewei Testing CNAS Registration Number: L8083
Qualification Requirements: Report must bear CMA seal Only then will it be recognized by e-commerce platforms and market regulators.
VI. Compliance Recommendations
1. Consider material compliance during the product design stage and avoid using glass raw materials containing lead and cadmium.
2. Plastic caps/silicone rings must be tested simultaneously; otherwise, the report will be incomplete.
3. Retain the original report; it must be presented during e-commerce platform registration, offline supermarket entry, and random inspections.
4. If the formula or supplier changes, retesting is recommended.
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