ISO STANDARD READING THE MARKING
ISO STANDARD
OPTIONAL MARKINGS
CAN BE FOUND ON
CODE LETTER
MEANING
LENS / FILTER
FRAME
Enhanced optical performance (marking optional)
•
1
Resistance to droplets
•
3
16321 MARK Means that the eyewear complies with the essential international health and safety requirements.
Resistance to large dust particles
•
4
Resistance to gas and fine dust particles
•
5
Resistance to streams of liquids
•
6
Protection from radiant heat
•
•
7
Resistance to molten metals and hot solids
•
•
9
Resistance to chemicals
•
•
CH
Resistance to surface damage by fine particles
•
K
U UL1,2 DT K N
16321 U DT 3 4
LENS:
FRAME:
Resistance to fogging
•
N
Extremes of temperature for mechanical tests
•
•
T
MANUFACTURER The logo or letter identifies who made the safety glasses. Univet symbol is “U”.
FILTERING PERFORMANCE CODE LETTER Level of protection against UV, infrared radiation, or visible glare.
IMPACT LEVEL Level of protection against speed particles.
OPTIONAL MARKINGS A dditional certified features.
NUMBER OF THE DOCUMENT It ensures to which specific standard this PPE is compliant.
APPLICABLE HEAD SIZE Shape and size of the used headform, if not expressed, equal to 1-M.
It is mandatory to add the reference number of the document, in this case, «16321» on frames and on welding filters. NUMBER OF THE DOCUMENT
FILTERING PERFORMANCE
MEET REQUIREMENTS FOR COLOUR DETECTION OF SIGNAL LIGHTS
CODE LETTER
INFRARED ABSORPTION
ENHANCED IR REFLECTANCE
SHADE NUMBER 1,2 to 5 1,1 to 10
FILTERS
U R
L (optional) L (optional)
Not applicable
Not applicable
UV filter
Not needed
R
IR filter
L
0 to 3
Sunglare filters for occupational use
G
R
Not applicable
L (optional)
4
IMPACT LEVEL
CODE LETTER
MEANING
Impact level resistance: 45 m/s Impact level resistance: 80 m/s Impact level resistance: 120 m/s
C (T)
D (T)
E (T)
HM (T) Impact level resistance: High Mass If the impact letter (C, D, E or HM) is followed by the letter T, then the eyewear protects against the relative impact even at extreme temperatures (−5 ± 2 / +55 ± 2 °C).
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