IEEE C95.1b-2004

C95.1b-2004 is a technical amendment to C95.1 that addresses specific absorption rate (SAR) limits for the pinna, the outer part of the ear. In the context of fields, waves and electromagnetics, it provides focused guidance for evaluating localized radiofrequency exposure where ear-adjacent devices or test setups may create concentrated energy absorption. This makes the standard relevant for controlled design, assessment, and compliance work.

What is C95.1b-2004?

C95.1b-2004 defines Amendment 2 to C95.1, extending the standard’s exposure framework with SAR limits specific to the pinna. It is intended to support consistent measurement and interpretation of localized absorption in electromagnetic environments, especially where close proximity to the ear is involved. For engineers and compliance teams, the document helps refine how exposure limits are applied in targeted body regions, rather than only at a general whole-body level.

Where is C95.1b-2004 used?

This standard is mainly used in electromagnetic safety evaluation for equipment that can be worn, held close to the head, or operated near the ear. Typical applications may include radiofrequency devices, head-worn systems, and related test environments where pinna exposure needs to be considered. C95.1b-2004 is useful during product development, lab measurement, and documentation workflows when SAR assessment near the ear must align with the specified limits.

Why is C95.1b-2004 important?

By setting SAR limits for the pinna, C95.1b-2004 helps reduce ambiguity in localized exposure assessment. That matters for design control, safety review, and procurement decisions where compliance with electromagnetic exposure requirements is part of the approval process. It also supports more consistent testing and reporting, which can improve comparability between measurements and lower the risk of applying incomplete or overly general limits to ear-region exposure.

• Pinna-specific SAR limits
• Localized RF exposure assessment
• Amendment to C95.1
• Electromagnetic safety compliance
• English-language technical document