Illinois Administrative Code
Title 32 - ENERGY
Part 315 - STANDARDS FOR PROTECTION AGAINST LASER RADIATION
Table E - Measurement Apertures for Classification
Spectral Region (µm) |
Duration (s) |
Aperture Diameter (mm) |
||||||
0.180 to 0.302 |
10-9 to 0.25 |
1.0 |
||||||
0.25 to 3 x 104 |
3.5 |
|||||||
0.302 to 2.8 |
10-9 to 3 x 104 |
50.0 |
||||||
2.8 to 102 |
10-9 to 0.3 |
1.0 |
||||||
0.3 to 10 |
1.5 t3/8 |
|||||||
10 to 3 x 104 |
3.5 |
|||||||
102 to 103 |
10-9 to 3 x 104 |
11.0 |
||||||
NOTES: |
1. |
These apertures are used for the measurement of optical power or energy for purposes of laser classification |
||||||
2. |
When the laser output is intended to be viewed with optics (excluding ordinary eyeglasses) or the laser safety officer determines that there is reasonable probability of accidental viewing with optics, a 50 mm aperture is used if the following conditions are met. |
|||||||
A) |
Viewing with optics presents a more severe hazard than unaided viewing. |
|||||||
B) |
The viewing time is sufficient to constitute a hazard. |
|||||||
3. |
Under normal conditions these exposure durations would not be used for classification (see ANSI Z136.1 (Table 9)). |
|||||||
4. |
For purposes of this Section 315.Table E, the following abbreviations or symbols are used: |
|||||||
µm |
= |
micrometers |
||||||
s |
= |
seconds |
||||||
mm |
= |
millimeters |
||||||
ts |
= |
time in seconds |