As already explained, SAR is a function of the electric field and which in turn would be dynamic since it depends on the device,it's config and usage.
The Federal Communications Commission (FCC) has capped SAR limit to 1.6 W/kg in 1g of tissue.
I'm speculating at a mobile phone's SAR value and I am confused with different SAR values
Which one is the most important of all?
http://i68.tinypic.com/21nozcx.png

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