California Proposition 65 test report for power adapters
Date：2026-06-01 09:37:56 Classification
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Guide to Obtaining a California I-65 Testing Report for Power Adapters
I. Why do power adapters need California I-65 testing?
Power adapters are classified as electrical and electronic products, a key category regulated under California I-65 regulations. Its internal components (such as PCB boards, solder, plastic casing, electrolytic capacitors inside the switching power supply, enameled wire insulation coating, etc.) may contain the following restricted substances:
Lead: Solder, component leads, enameled wire
Cadmium: Switch contacts, metal plating
Phytaldehyde: Plastic casing, cable insulation
Brominated flame retardants: PCB board substrate
Formaldehyde: Internal plastic components
II. Processing Procedure
| Steps | Content | Timeframe
| 1. Document Preparation | Product BOM list, material composition description, circuit diagram, application form
| 2. Sample Submission and Testing | Provide 3-5 complete sets of samples and key material samples
| 3. Laboratory Testing | Conduct chemical analysis according to California Proposition 65 methods
| 4. Report Issuance | Compile a test report, including the content of each substance and the judgment results
Timeframe: Usually 5-7 working days (depending on the agency's schedule and expedited requests)
III. Main Testing Items
| Detected Substances | Common Detection Sites | Reference Limits
| Lead (Pb) | Solder, PCB, Component Leads | ≥100ppm requires attention
| Cadmium (Cd) | Metal Plating, Switch Contacts | ≥5ppm requires attention
| Phthalate Esters (DBP/BBP/DEHP/DIDP) | Plastic Housings, Cables | ≥100ppm requires attention
| Brominated Flame Retardants (PBB/PBDE) | PCB Substrates, Plastic Components | ≥100ppm requires attention
IV. Precautions
Warning Labels: If test results exceed safe harbor levels, a warning label must be provided when the product is sold in California.
Supply Chain Compliance: It is recommended to request material composition declarations from upstream component suppliers.
Report Validity: It is recommended to retest annually or when raw materials change.
Certification Body Selection: Prioritize domestic institutions with CMA/CNAS accreditation or international authoritative institutions (DEZEW Testing CNAS Registration No.: L8083)
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