Quantcast Table III. Treatment of Special Wood Products

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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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