Page 447 - NORTON cutting-off and grinding wheels - industrial

447
PERSONAL PROTECTION EQUIPMENT
Providing eye protection for metal, welding, cutting, grinding and sanding
applications. Adjustable hinges on Premium glasses allow for comfortable use
with respiratory masks.
UNDERSTANDING LENS MARKING
UNDERSTANDING FRAME MARKING
2
U
U
F
F 1.2
EN 166
1 N
FILTER TYPE
2 - Code No:
indicates the
type of filter
2 & 3 = UV
C - Enhanced
colour
recognition for
lenses category
2 or 4
MANUFACTURER
U - Identification of the
manufacturer
MANUFACTURER
U - Manufacturers
identification
MECHANICAL RESISTANCE
F - Symbol for mechanical strength
(F for high speed particles, low energy)
T - Symbol for resistance to high speed
particles at extremes of temperature
(-5°C & +55°C) follows impact grade
MECHANICAL
RESISTANCE
F - Symbol for
mechanical
strength (F for
low impact)
T - Symbol for
resistance to
high speed
particles at
extremes of
temperature
(-5°C & +55°C)
follows impact
grade
SHADE
NUMBER
1.2 - Indicates
the shade of the
lens (between
1.2 & 8 for
spectacles &
goggles)
OPTICAL CLASS
EN 166 - Optical class
(1 = permanent wear,
3 = occasional wear)
OPTICAL
CLASS
1 - Optical class
(1 = permanent
wear,
3 = occasional
wear)
ADDITIONAL
REQUIREMENTS
K - K Symbol for
resistance to
surface damage
by fine particles
N - Symbol
for resistance
to fogging of
lenses
Filter type
Additional requirements
Optical class
Mechanical resistance
Shade number
Manufacturer
GLASSES
PERSONALPROTECTIONEQUIPMENT
TECHNICALINFORMATION