Detailed explanation of California 65 testing process for computer casings
Date：2025-12-23 09:24:41 Classification
：【question】 Visits：
The process control of California 65 testing is directly related to whether the product can pass the review of platforms such as Amazon. Combined with the latest regulatory requirements, this process needs to progress from material screening to label design, with clear technical standards for each link.
Computer Shell California 65 Testing Full Process Operation Guide
1、 Clearly define the detection scope and key limits
Core controlled substances (for computer casings)
|Substance category | Limit requirements | Key detection areas
|Total lead (Pb) | ≤ 100ppm (non coated material) | Plastic shell body, metal frame coating, logo printing ink
|Phthalates | Single type ≤ 0.1% (1000ppm) | Soft plastic components (such as anti slip foot pads, screen frame adhesive strips)
|Cadmium (Cd) | ≤ 300ppm (metal material) | Aluminum alloy shell, zinc alloy connector
|Flame retardant (such as TDCPP) | ≤ 25ppm (new limit in 2025) | ABS/PC mixed material shell containing flame retardant requirements
Exempt Requirements
If the internal non-contact parts (such as the plating inside screw holes) comply with RoHS standards, partial project exemptions can be applied for, but structural design drawings must be provided to prove that they cannot be accessed by users.
2、 Preparation checklist before testing
1. Technical documents
Material List (BOM): It is necessary to specify the materials of each component of the shell (such as PC+ABS alloy, anodized aluminum) and the MSDS report from the supplier
Production process description: indicate the surface treatment method (spray painting/anodizing/electroplating), with a focus on the process steps containing ink and glue
Product manual: It is necessary to describe the usage scenario (such as whether it comes into contact with the skin, whether it may be touched by children)
2. Sample requirements
Quantity: 2-3 complete sets of shells (including all detachable components such as foot pads and decorative strips)
Representative: All color/material variants need to be covered (such as black spray paint and silver metal models need to be tested separately)
Preprocessing: The sample needs to undergo simulated transportation aging testing (temperature and humidity cycling) before being sent for inspection to avoid initial state detection deviation
3、 The entire process of laboratory testing (5-7 working days)
1. Institution selection criteria
Must have ISO 17025 qualification
Recommended Institution: Dezewei Testing CNAS Registration Number: L8083
2. Testing methods and equipment
|Testing items | Standard methods | Core equipment
|Heavy metal leaching | EPA 3052 (microwave digestion method) | ICP-MS (inductively coupled plasma mass spectrometer)
|Phthalates | EPA 8270D (solvent extraction) | GC-MS (gas chromatography-mass spectrometry)
|Flame retardant screening | ASTM D7359 (thermal cracking) | LC-MS/MS (liquid chromatography tandem mass spectrometry)
3. Key detection scenarios
Edge strengthening test: separate samples should be taken from the opening and closing parts, as well as the edges and corners of the laptop, to simulate the release of substances after long-term contact and friction by the user
Temperature simulation: For high heating devices such as gaming laptops, migration testing needs to be conducted at 40 ℃ (simulating actual usage temperature)
4、 Reporting and Compliance Response
1. Verification of report validity
Essential elements: laboratory CNAS/CMA identification, test standard number (such as EPA 3052), sample spectrum (heavy metal detection requires ICP-MS raw data)
Validity period: Not mandatory by regulations, but it is recommended to update annually (California 65 list updated 4-6 times a year, with 8 new high-risk substances added by 2025)
2. Excess handling plan
Slight exceedance (such as 120ppm lead): A warning message in accordance with California 65 can be labeled on the product packaging, and the format should include:
plaintext
⚠️ WARNING: This product contains a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
Serious exceedance (such as lead>500ppm): Raw materials must be replaced (lead-free electroplating process is recommended, such as trivalent chromium coating replacing hexavalent chromium)
3. Amazon platform declaration
Please upload a scanned copy of the testing report in the "Product Safety" section of the Listing page and indicate "Complies with California Proposition 65" in the description
Starting from 2025, it is mandatory to display warning images (font height ≥ 6pt, contrast ≥ 70%) on detail pages
5、 Key focus of new regulations in 2025
Newly added controlled substances: Hexachlorobutadiene (HCBD) ≤ 0.1ppm (for plastic flame retardants), Perfluorooctanoic acid (PFOA) ≤ 0.001ppm (for waterproof coatings)
New label requirement: Warning language must clearly list the specific names of substances exceeding the standard (such as "lead" and "DEHP containing"), and vague expressions must no longer be used.
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