A method for assessing the potential for a dermal burn hazard from malfunctioning consumer electronic devices

Area of Science:

• Materials Science
• Biomedical Engineering
• Consumer Product Safety

Background:

• Portable consumer electronic devices can pose a burn risk due to internal faults.
• Existing standards for burn injury assessment may not fully address the unique characteristics of these devices.

Purpose of the Study:

• To adapt the ASTM C1055-03 Standard for assessing contact burn injury potential in portable consumer electronic devices.
• To develop a reliable method for predicting burn hazards from device faults.

Main Methods:

• Measuring maximum temperature profiles during simulated device faults.
• Reproducing fault temperatures in exemplar devices for controlled thermesthesiometer measurements.
• Comparing thermesthesiometer data with burn injury thresholds and contact time guidelines.

Main Results:

• The adapted method successfully predicted potential contact burn injury hazards.
• Verification of predictions was achieved through "finger tests."
• The approach was applied to assess burn injury likelihood in various portable electronic devices.

Conclusions:

• The developed approach provides a viable method for evaluating burn injury risks associated with portable electronic devices.
• This adaptation of ASTM C1055-03 enhances consumer product safety by identifying potential thermal hazards.
• The findings support the safe design and use of portable consumer electronics.