TUMA HAZARD CLASSIFICATIONS |
Hazard level |
Exposure |
Service Environment |
Biological Hazard |
Typical Uses |
H3 |
Outside
above ground |
Clear of ground,
subject to periodic wetting
and attack by fungi, and
insects including termites. |
Decay fungi
and insects
including termites |
Bearers, Joists, Decking, Handrail, Capping, Palings, Rails & Cladding |
H4 |
Outside
in ground |
In ground or persistently damp above ground where severe
decay and insect, including termite, attack exists. |
Severe decay fungi and insects
including termites |
Fence Posts, Landscape Materials, Retaining Walls & Freeway Noise Barrier |
H5 |
Outside
in contact with
ground or water |
For use where high hazard ground contact,
fresh water contact or
critical end use is involved. |
Very severe decay fungi and insects including termites |
Engineered Retaining Walls, House Poles & Power Poles |
H6 |
Marine |
Where prolonged contact
with sea water exists. |
Very severe
decay fungi and marine borer hazard |
Piles, Jetty & Boardwalk Construction |
