Instructions

HD2402 - 13 - V1.3
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
:[Wm
-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 μs ≤ 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 μs
[W m
-2
sr
-1
]
j. 780-1 400
(IRA)
L
R
¼
6·10
6
C
α
fort>10s
[W m
-2
sr
-1
]C
α
=11for
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 μs ≤ t ≤ 10 s
L
R
:[Wm
-2
sr
-1
]
t: [seconds]
l. 780-1 400
(IRA)
L
R
¼
8,89 · 10
8
C
α
for t < 10 μs
[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
fort<10s
H: [J m
-2
]
t: [seconds]
skin burn
Table 4: exposure limit values for non-coherent radiations