ADE WS 1908 Mode D'emploi page 49

3 > 1-3 mg/m³
4 > 3-10 mg/m³
5 > 10 mg/m³
Hygienically noteworthy.
Only limited use in spaces
that are regularly used is
acceptable (< 12 months).
Hygienically dubious.
Only limited use in spaces
that are regularly used is
acceptable (< 1 month).
Hygienically unacceptable.
Avoid use of this space
as much as possible. Use
of the space should be
limited to at most hourly
intervals/temporarily a
day. You must refrain from
using the space if values
exceed 25 mg/m³.
49