The ISO 12870 describes a test of the bridge deformation under load and check the fit of
the lens in the eyeglass frame.
The left lens is mounted between two annular clamping jaws. Then
the right lens is moved with a rod up to 8 mm up to
a force of 5 N. After 5 s the glasses is relieved
and the deformation
is measured after 20 s. The permanent deformation
shall not exceed 2% and the spectacle frame may occured no cracks or breaks.
Dimension(B,T,H) | ca. 200, 200, 300 mm | |
Weight | 10 kg |
1 Test Device
1 Operating Instruction
Bridge Deformation Test manuel | 620-010 | 3.880,- € |
Delivery: DAP
Shipping time: by arrangement
Technical changes reserved.
The illustrations may differ from the actual equipment.
All data without obligation and not-binding.
The prices quoted are net prices.