PRESERVATIVE TREATED TIMBER

HAZARD CLASS GUIDE

NOTE: For more detailed information and description of Hazard Classes refer to Australian Standard series AS1604. Koppers®, MicroPro®, NatureWood® ACQ®, DeterMite®,

Protim® are registered trademarks and Inshield™ is a trademark of Koppers Inc and its subsidiaries. *See separate limited guarantee document for more details.

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MicroPro®

Bifenthrin

HAZARD CLASS EXPOSURE HAZARD EXAMPLES

H1 Inside, above ground Lyctid borersSusceptible framing, flooring, furniture and interior joinery

H2 Inside, above ground Borers and termites

Framing, flooring and similar used in dry conditionsH2F is the Hazard Class for framing timber and H2S is the Hazard

Class for LVL and plywood, both classes approved for use South of the Tropic of Capricorn only.

H3 Outside, above ground Borers and termites

Weatherboard, fascia, pergolas (above ground), window joinery, decking and verandah posts

H4 Outside, in-groundSevere decay, borers and termites

Fence posts, garden walls less than 1m high, landscaping

H5Outside, in-ground contact with or in fresh water

Very severe decay, borers and termites

Retaining walls, piling, house stumps, building poles and cooling tower fill

H6 Marine watersMarine wood borers and decay

Boats hulls, marine piles, jetty cross bracing and landing steps etc