VALIDATED TECHNOLOGY 611 POLYCARBONATE Lens
128 g
autoclave sterilization
Sterilization with STEAM 121°C for 30min in 1 ATM
REFERENCE PARAMETERS Lens Δl = 73.3% VLT= visible light trasmittance Δl = elongation% VLT = 85.8% Elastic Band
LIFE CYCLE
number of cycles 0 5 10 15 20 25 30 35 40 45
suggested action
suggested action Replace the goggles
Change the lens
Mask elements
Number of cycles
0÷20
20÷30
30÷40
Frame
No alteration
No alteration
No alteration
Lens
VLT = 82.6% Δl = 63.3% No alteration
VLT = 82.3% Δl = 61.2% No alteration
VLT = 81.4% Δl = 58.3% No alteration
Elastic band
Buckle
Resistance to fogging of oculars EN166:2001 Clause 7.3.2
SAMPLE
TIME TO FOGGING [s]
‘N’ MARKING REQUIREMENT [s]
AF121
>30
>8
Resistance to surface damage by fine particles EN166:2001 Clause 7.3.1
SAMPLE REDUCED LUMINANCE FACTOR [cd/lx·m 2 ]
‘K’ MARKING REQUIREMENT [cd/lx·m 2 ]
AF121
1.2
<5
611
Lens
128 g
β and γ ray sterilization
Reference
1 cycle
5 cycles
10 cycles
15 cycles
20 cycles
Visible light trasmittance (VLT) Lens
89.1%
88.9%
88.7%
89.1%
88.5%
88.3%
Variation
-0.2%
-0.4%
-0.4%
-0.6%
-0.8%
87.2%
85.6%
78.2%
73.1%
66.4%
63.6%
Visible light trasmittance (VLT) POLYCARBONATE Lens
Variation
-1.8%
-10%
-16%
-24%
-27%
REF 5 cycles 10 cycles 15 cycles 20 cycles
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