Illinois Administrative Code
Title 32 - ENERGY
Part 315 - STANDARDS FOR PROTECTION AGAINST LASER RADIATION
Table E - Measurement Apertures for Classification

Universal Citation: 32 IL Admin Code ยง E
Current through Register Vol. 47, No. 52, December 29, 2023

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

Disclaimer: These regulations may not be the most recent version. Illinois may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.