Safety
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Magnetic field strength is a vector quantity (H), which, together with the magnetic flux density,
specifies a magnetic field at any point in space. It is expressed in Ampere per meter. (A/m).
Magnetic flux density is a vector quantity (B), resulting in a force that acts on moving charges,
expressed in (T). In free space and in biological materials, magnetic flux density and mag-
netic field strength can be interchanged using the equivalence 1 A/m = 4π 10
-7
T.
German Regulations
In Germany, regulation BGV B15 describes the maximum exposure doses in two basic ta-
bles. The first table below applies to situations under the standard precautionary conditions,
whereas the second table applies to systems with field strengths above 5 Tesla and can only
be applied to certain subgroups of people, which meet nonstandard precautionary conditions.
Details on the different precautionary conditions and subgroups of people are given in the
document BGV B15 document.
Exposure Maximum Magnetic Flux Density
Average over 8 hours 212 mT
Peak values for head and body 2T
Peak values for extremities 5T
Standards on health and safety in the workplace for standard precautions
and users, according to BGV B15.
Table2.4: BGV B15 Standards for Standard Precautions and Users
Exposure Maximum Magnetic Flux Density
Average over 8 hours 4T
Peak values for head and body 2T
Peak values for extremities 10T
Health and safety standard in the workplace applicable under special con-
ditions to selected subgroups of people, according to BGV B15
Table2.5: BGV B15 Standards Under Special Conditions for Selected Subgroups
2.2 Transport and Rigging Safety
The following safety notices pertain to the transport and rigging of AVANCE NEO systems:
• The magnet should always be transported gently in an upright position.
• The magnets are sensitive to shocks and tilting, thus are fitted with shock and tilt watches
during transportation.
• Only certified operators of fork lifts, pallet jacks and cranes should handle the transport
and rigging.
• Crates should not be left outside, but should be brought inside immediately to protect
equipment.
• Storage conditions:
– Temperature: 5-40 °C
For a relocation of NMR systems please contact your local Bruker Service office for further
details and arrangements.