How much does UL 964 testing cost?

China JJR is an ISO/IEC 17025 accredited laboratory. The UL 964 standard testing fee for electric blankets is $500-800$. It requires one sample, and the testing period is 7-9 working days.

What is the UL 964 standard?

The UL 964 standard: UL 964 is a safety standard for electric blankets developed by Underwriters Laboratories (UL). It covers multiple aspects, including electrical safety, mechanical safety, thermal performance, and material flammability, ensuring that electric blankets remain safe and reliable under normal use and foreseeable abnormal conditions.

Contents of UL 964 Testing

1. Electrical Safety Testing:

- Insulation Resistance Test: Detects the insulation performance of the electric blanket to prevent leakage and ensure user safety during normal use.

- Ground Continuity Test: Verifies the effectiveness of grounding measures to safely direct current to the ground during electrical faults.

- Dielectric Strength Test: Applies high voltage to the electric blanket to assess its insulation's ability to withstand voltage and avoid breakdowns under normal or external disturbances.

2. Mechanical Safety Testing:

- Enclosure Strength Test: Evaluates the enclosure's strength and stability under external pressure or impact to prevent exposing internal electrical components.

- Power Cord Tension Test: Simulates scenarios where users pull the power cord, testing the connection strength between the cord and the blanket to ensure it does not detach easily.

3. Thermal Performance testing:

- Heat Uniformity Test: Checks if the blanket's surface temperature is evenly distributed to prevent local overheating and potential burns.

- Temperature Control Test: Verifies the temperature control device's accuracy in maintaining temperatures within a set range to avoid overheating and fire risks.

- Abnormal Temperature Test: Simulates abnormal conditions (e.g., excessive covering, folded use) to ensure the blanket can shut off power or issue alerts to protect the user.

4. Material Flammability Testing:

- Tests the blanket's outer shell, fabric, and other materials to ensure they self-extinguish upon exposure to flames, preventing fire spread.

Process for Obtaining a UL 964 Test Report

1. Select an Accredited Laboratory:

- Choose a professional testing laboratory accredited for UL certification (e.g., China JJR Lab) with advanced testing equipment and extensive experience.

2. Submit Samples and Documentation:

- Provide representative electric blanket samples reflecting production quality.

- Submit relevant product documentation, such as manuals, circuit diagrams, and material lists, to help the laboratory understand the product characteristics for accurate testing.

3. Conduct Testing:

- The laboratory performs comprehensive tests on the sample per UL 964 requirements. Testing typically takes 7-9 working days, depending on the complexity and scheduling.

4. Receive Test Report:

- If the sample passes all test items, the laboratory issues an official UL 964 test report, detailing the testing process, results, and conclusions, supporting product sales on platforms like Amazon.

Key Considerations

1. Regularly Update Test Reports:

- As standards and regulations evolve, sellers should periodically update their UL 964 test reports to ensure compliance with the latest safety requirements.

2. Ensure Product Consistency:

- During production, maintain strict quality control to ensure mass-produced electric blankets are consistent with the tested sample.

3. Monitor Market Dynamics:

- Stay informed about changes in Amazon's requirements and relevant regulations for electric blankets to prepare in advance.

In summary, the UL 964 test report for electric blankets is a crucial document for ensuring product safety and legal compliance for sales.