Amazon requires CPC testing on ordinary building blocks. According to the regulations of the Consumer Product Safety Commission (CPC) in the United States, all children's products, including toys, sold in the United States need to meet the requirements of CPC certification.



CPC testing items for ordinary building blocks on Amazon:

1. Physical and mechanical performance tests: These tests focus on the structural strength, durability and stability of the product. For building blocks, this might include testing whether the edges of the block are too sharp, whether they loosen or break easily, and whether small parts may pose a choking risk.

2. Chemical substance testing: These tests are designed to detect the presence of harmful chemicals in the building blocks, such as heavy metals, allergenic substances and harmful substance residues. These chemicals may pose potential risks to children's health.

3. Flammability test: For building block toys, flammability test is also very important. Testers will check the flame retardant properties of the bricks to ensure they will not burn quickly when exposed to a fire source, thus preventing fire hazards to children.

4. Labeling and packaging performance testing: In addition to the above-mentioned testing of the product itself, CPC testing also includes testing of product labeling and packaging. This includes checking that product labeling is clear and accurate, that packaging is strong enough to protect the product from damage during transportation, and that warnings and instructions on packaging attract consumers' attention.



Amazon CPC detection process for ordinary building blocks:

1. Submit application form and samples: First, you need to submit an application form to the testing agency and provide samples of the ordinary building blocks you want to test.

2. Confirm the testing items: The testing agency will confirm the testing items that need to be carried out based on the building block samples and relevant information provided by you. These items may include physical and mechanical property testing, chemical substance testing, flammability testing, etc.

3. Sample testing: The testing agency will test the provided building block samples to check whether they meet the requirements of relevant regulations and standards. This may include laboratory testing, safety assessments, etc.

4. If the building block sample passes the test, a CPC certificate will be issued: If the building block sample passes all testing items, the testing agency will issue a CPC certificate to prove that the building block meets the safety standards and regulations of the US CPSC.

It should be noted that the entire testing process usually takes 5-7 working days, depending on the complexity of the sample and the number of test items. In addition, the testing agency must be a third-party laboratory recognized by the CPSC to ensure testing accuracy and compliance.