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 Product and use conditions
Requirements
on
treatment
Other requirements
Assay
Retention 1/ zone Penetration
In and/or
Pcf
In
pct of sapwood
--
--
--
--
Dual-treated
marine
piles
Kiln drying after first
treatment not permitted.
Coastal
Douglas-fir
1.00
First
treatment
Ammoniacal copper arsenite
Do.
1.0
0-1.00
or chromated copper arsenate
(types I, II, or III)
(13/)
Creosote5/
20.0
Second
treatment
Do.
0-1.00
Southern pine
1.00
First treatment
Ammoniacal copper arsenite
1.0
Do.
0-1.00
or chromated copper arsenate
(types I, II, or III)
Creosote5/
20.0
Second
treatment
0-1.00
4.0 or 90
Do.
Dual-treated lumber and
--
--
--
--
timbers for marine use
Do.
Coastal Douglas-fir
1.50
Do.
0-0.60
0.5 and 90
First treatment
Ammoniacal copper arsenite
or chromated copper arsenate
(types I, II, or III)
Creosote5/
20.0
Do.
Second
treatment
0-0.60
0.5 and 90
Western Hemlock
1.50
0.5 and 90
First treatment
Do.
Ammoniacal copper arsenite
0-0.60
or chromated copper arsenate
(types I, II, or III)
Creosote5/
20.0
Do.
Second
treatment
0.5 and 90
0-0.60
Southern pine
1.50
First treatment
1.0
Do.
Ammoniacal copper arsenite
0-0.60
or chromated copper arsenate
(types I, II, or III)
Creosote5/
20.0
Second
treatment
2.5 or 85
Do.
0-0.60
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