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Back to Introduction to Ionizing Radiation
Radio Active Decay Series
Example Controls Required for Laser Classes from
ANSI Z-136.1 (1988)
y = yes s = sometimes -- = no
Control Measures
Class
I
IIA
II
IIIA
IIIB
IV
Protective Housing
y
y
y
y
y
y
Interlocks on Protective Housing
--
--
--
y
y
y
Limited Open Beam Path
--
--
--
--
y
y
Beam Stop or Attenuator
--
--
--
s
s
y
Activation Warning System
--
--
--
--
s
y
Labels
--
y
y
y
y
y
Area Posting
--
--
s
s
y
y
Standard Operating Procedures
--
--
--
--
s
y
Output Emission Limitations
--
--
--
LSO Determines
Education and Training
--
--
--
y
y
y
Authorized Personnel
--
--
--
--
y
y
Alignment Procedures
--
--
y
y
y
y
Eye Protection
--
--
--
--
s
y
Spector Control
--
--
--
--
s
y