Specific Absorption Rate (SAR) Testing

Specific absorption rate (SAR) is the internationally recognized metric used to quantify the rate at which radio frequency energy is absorbed by human tissue when exposed to electromagnetic fields generated by wireless devices. SAR is expressed in watts per kilogram (W/kg) and serves as a critical indicator of RF exposure safety. During SAR testing, the device under evaluation is positioned near standardized human head or body models (phantoms) filled with tissue-equivalent liquids that simulate the electrical characteristics of human tissues. Specialized electric-field probes measure the RF energy distribution inside the phantom, enabling accurate calculation of SAR values. From smartphones and wearables to IoT devices and medical equipment, products that operate in close proximity to the human body must demonstrate compliance with SAR regulations before entering global markets.

At Alfa Chemistry, we provide SAR testing service to help manufacturers verify product safety, meet international regulatory requirements, and accelerate certification processes. Supported by advanced SAR measurement systems, experienced compliance engineers, and globally recognized testing methodologies, we deliver reliable testing solutions for a broad range of wireless products.

Global SAR regulations and exposure limits

Most countries worldwide have adopted either the FCC exposure model (1.6 W/kg averaged over 1 g of tissue) or the ICNIRP exposure model (2.0 W/kg averaged over 10 g of tissue), making SAR compliance a key requirement for global market access.

Our SAR testing solution

To ensure the highest levels of measurement accuracy, repeatability, and regulatory compliance, our SAR laboratory is equipped with one of the industry's most advanced RF exposure assessment platforms. At the core of our laboratory is the DASY 6 Specific Absorption Rate Measurement System developed by SPEAG (Schmid & Partner Engineering AG). The DASY 6 platform is widely recognized by regulatory authorities and certification bodies worldwide and is extensively used for FCC, ISED, CE, MIC, and global SAR compliance evaluations. Moreover, we employ internationally recognized anthropomorphic phantoms, including SAM head phantom, flat phantom, body phantom, and limb phantom. These phantoms accurately simulate realistic human exposure conditions and comply with IEC/IEEE testing requirements.

Based on the advanced equipment, we support SAR testing for a wide range of wireless and connected products:

Our SAR testing services are performed in accordance with: