304 stainless steel EU EC) NO 1935/2004 food contact material testing
Date：2025-07-10 10:31:02 Classification
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304 stainless steel EU EC NO 1935/2004 food contact material testing requirements, the information is organized as follows:
I. Core test items and standards
1. Heavy metal migration test
- Test items: Migration of heavy metals such as nickel (Ni), chromium (Cr), and manganese (Mn) under simulated acidic conditions.
- Limit requirements:
- Nickel migration ≤0.1 mg/L
- Chromium migration ≤0.1 mg/L
- Manganese migration ≤0.1 mg/L.
- Test method:
- The sample is placed in a 4% acetic acid solution and boiled for 24 hours, and the migration amount is determined by ICP-MS (inductively coupled plasma mass spectrometry).
2. Surface coating adhesion evaluation (if the product has a coating)
- Test method: Scratch test (such as Tape Test) or tape stripping method to ensure that the coating does not fall off during use.
3. Other heavy metal detection
- According to the general requirements of the European Union, the dissolution of heavy metals such as lead (Pb) and cadmium (Cd) needs to be tested. The specific limit values need to refer to the EN 13881/EN 13882 standards.
2. Testing process and examples
1. Typical testing process
- Sample processing: Randomly select samples (such as pots and tableware) to simulate actual use conditions (high temperature, acidic environment).
- Migration experiment: Boil 4% acetic acid solution for 24 hours to detect the migration of heavy metals.
- Coating test: Observe whether the coating falls off after scratching.
2. Example reference
- A 304 stainless steel pot test case:
- The chromium migration amount is 0.09 mg/L and the manganese migration amount is 0.05 mg/L, both of which meet the standards; the coating does not fall off and has passed the EU certification.
- Unqualified case: A stainless steel tableware needs to replace low-nickel raw materials and optimize the process because the nickel migration exceeds the standard.
III. Regulatory framework and differences between member states
1. General requirements of the EU
- Based on the EC 1935/2004 framework regulation, it emphasizes material safety and migration limits, and must comply with EN 16168 (general standard for metal materials), etc.
2. Special requirements of member states
- German LFGB: Additional sensory testing and comprehensive migration testing are required, such as Chapter 30/31.
- French DGCCRF: Focus on migration rate and component safety, and must pass the 2004-64 ceramic regulations, etc.
IV. Compliance recommendations
1. Select a qualified testing agency
- Give priority to laboratories with EN 601/EN 602 standard testing capabilities, such as Dezewei Testing Company, to ensure that the report meets the requirements of the EU and member states.
2. Supply chain management
- Strictly screen raw materials (such as low-nickel stainless steel) and optimize production processes to reduce heavy metal precipitation.
For a complete list of testing items or specific national regulatory details, please refer to the source.
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