12 Technical manual | X-am® 3500/8000
Conventions in this document
STEV Short time exposure value, average value of exposure over a
short period of time (generally 15 minutes).
TWA Time weighted average, average shift values are generally lim-
ited to eight hours exposure per day per workplace for 5 days a
week during a work lifetime. Observe the national definition of
the occupational exposure limit.
Abbreviation Explanation