The following is a (incomplete) list of objects that should not come too close
to a permanent magnet, as well as the recommended safety distance:
Object
Heart pacemakers new
Heart pacemakers old
High-quality magnetic card
(Credit card, EC-card, banking card)
One way magnetic card
(parking card, admission card for
example to exhibitions)
Mechanical watch, anti-magnetic,
acc. ISO 764
Mechanical watch,
not anti-magnetic
Hearing aid
Car key
USB-stick, memory card
CD, DVD
Camera, mobile phone,
smartphone
Festplatte
3.2 Material
Attention
Magnetic flux density: in closed condition at the PeroSupport.tec
approx. 4mT at a distance of 25,4 mm to the closure.
Epoxy-resin pre-impregnated carbon fibre
(carbon-pre-preg-material)
Pad:
Hook- and loop fasteners:
18/36
Magnetic field
harmful from:
1 mT
0,5 mT
40 mT
3 mT
6 mT
0,05 mT
20 mT
no hazard
no hazard
no hazard
no hazard for
memory Hard disk
unclear
100 %
PE
100 %
PA
Recommended
safety distance
62 mm
80 mm
15 mm
42 mm
32 mm
176 mm
20 mm
Polyester
Polyamide