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HD2402
- 13 -
V1.4
Table 4 shows the 15 limit values to be calculated according to attachment 37 of L.D.
81/08.
Index
Wavelength nm
Exposure limit value
Units
Comment
Part of the body
Hazard
a.
180-400
(UVA, UVB and UVC)
H
eff
= 30
Daily value 8 hours
[J m
-2
]
eye cornea
conjunctiva
lens
skin
photokeratitis
conjunctivitis
cataractogenesis
erythema
elastosis
skin cancer
b.
315-400
(UVA)
H
UVA
= 10
4
Daily value 8 hours
[J m
-2
]
eye lens
cataractogenesis
c.
300-700
(Blue light)
see note 1
L
B
¼
10
6
t
for t
≤
10 000 s
L
B
:[W m
-2
sr
-1
]
t: [seconds]
for
α
≥
11 mrad
eye retina
photoretinitis
d.
300-700
(Blue light)
see note 1
L
B
= 100
for t > 10 000 s
[W m
-2
sr
-1
]
e.
300-700
(Blue light)
see note 1
E
B
¼
100
t
for t
≤
10 000 s
E
B
: [W m
-2
]
t: [seconds]
for
α
< 11 mrad
see note 2
f.
300-700
(Blue light)
see note 1
E
B
= 0,01
t >10 000 s
[W m
-2
]
g.
380-1 400
(Visible and IRA)
L
R
¼
2,8 · 10
7
C
α
for t >10 s
[W m
-2
sr
-1
]
C
α
= 1,7 for
α
≤
1,7 mrad
C
α
=
α
for
1,7
≤
α
≤
100 mrad
C
α
= 100 for
α
> 100 mrad
λ
1
= 380;
λ
2
= 1 400
eye retina
retinal burn
h.
380-1 400
(Visible and IRA)
L
R
¼
5 · 10
7
C
α
t
0,25
for 10
μ
s
≤
t
≤
10 s
L
R
:[W m
-2
sr
-1
]
t: [seconds]
i.
380-1 400
(Visible and IRA)
L
R
¼
8,89 · 10
8
C
α
for t <10
μ
s
[W m
-2
sr
-1
]
j.
780-1 400
(IRA)
L
R
¼
6 · 10
6
C
α
for t > 10 s
[W m
-2
sr
-1
]
C
α
= 11 for
α
≤
11 mrad
C
α
=
α
for
11
≤
α
≤
100 mrad
C
α
= 100 for
α
> 100 mrad
(measurement field-of-view:
11 mrad)
λ
1
= 780;
λ
2
= 1 400
eye retina
retinal burn
k.
780-1 400
(IRA)
L
R
¼
5 · 10
7
C
α
t
0,25
for 10
μ
s
≤
t
≤
10 s
L
R
: [W m
-2
sr
-1
]
t: [seconds]
l.
780-1 400
(IRA)
L
R
¼
8,89 · 10
8
C
α
for t < 10
μ
s
[W m
-2
sr
-1
]
m.
780-3 000
(IRA and IRB)
E
IR
= 18 000 t
-0,75
for t
≤
1 000 s
E: [W m
-2
]
t: [seconds]
eye cornea
lens
corneal burn
cataractogenesis
n.
780-3 000
(IRA and IRB)
E
IR
= 100
for t > 1 000 s
[W m
-2
]
o.
380-3 000
(Visible, IRA
and IRB)
H
skin
= 20 000 t
0,25
for t < 10 s
H: [J m
-2
]
t: [seconds]
skin
burn
Table 4: exposure limit values for non-coherent radiations
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