Nokia Lumia 930 Quick Manual page 8

Nickel
The surface of this device is nickel-free.
Certification information (SAR)
This mobile device meets international guidelines for exposure to
radio waves.
Your mobile device is a radio transmitter and receiver. It is designed
not to exceed the limits for exposure to radio waves (radio frequency
electromagnetic fields), recommended by international guidelines
from the independent scientific organization ICNIRP. These
guidelines incorporate substantial safety margins that are intended
to assure the protection of all persons regardless of age and health.
The exposure guidelines are based on the Specific Absorption Rate
(SAR), which is an expression of the amount of radio frequency (RF)
power deposited in the head or body when the device is transmitting.
The ICNIRP SAR limit for mobile devices is 2.0 W/kg averaged over 10
grams of tissue.
SAR tests are carried out with the device in standard operating
positions, transmitting at its highest certified power level, in all its
frequency bands. The maximum recorded SAR values for this device
are:
Maximum SAR value
When held against 0.60 W/kg over 10g
the head
When operated at a 0.68 W/kg over 10g
separation distance
of 1.5 centimetres
(5/8 inch) from the
body
This device meets RF exposure guidelines when used against the head
or when positioned at least 1.5 centimetres (5/8 inch) away from the
body. When a carry case, belt clip or other form of device holder is
used for body-worn operation, it should not contain metal and should
provide at least the above stated separation distance from the body.
To send data or messages, a good connection to the network is
needed. Sending may be delayed until such a connection is available.
Follow the separation distance instructions until the sending is
finished.
During general use, the SAR values are usually well below the values
stated above. This is because, for purposes of system efficiency and
Frequency bands
used when
Maximum SAR value
was recorded
4-slot GPRS 900 and
WLAN 5000
4-slot GPRS 900 and
WLAN 2450