Custom Search
|
|
|
||
 Minimum net retention of active preservative1/
Penetration
Assay
Treating
Form of product and
Zone
service conditions
specifi-
cations 2/
(AWPA C1
and
others
listed
below)
In. and/or
pct of
sapwood
Timbers--cont.
Solid--cont.
In areas where teredo are
present with light
limnoria activity
3/
Coastal Douglas-fir
0.75 and 90
25.0
0-0.60
--
--
--
--
--
--
2.50
2.50 --
--
--
3/
Western Hemlock
0.75 and 90
0-0.60
25.0
--
--
--
--
--
--
2.50
2.50 --
--
--
3/
Southern pine
2.50 or 85
0-0.60
--
25.0
--
--
--
--
--
2.50
2.50 --
--
--
In areas where teredo are
present with no limnoria
activity
5/
Coastal Douglas-fir and 0.75 and 90
0-0.60
20.0
--
--
--
--
--
--
--
--
--
--
--
western hemlock
5/
Southern pine
2.50 or 85
0-0.60
20.0
--
--
--
--
--
--
--
--
--
--
--
For other important structural
members used in fresh water
or in ground contact
Coastal Douglas-fir and
0.75 and 90
0-0.60
12.0
12.0
12.0
0.60
--
--
--
0.60
0.60 --
--
--
western larch
Western Hemlock
0.75 and 90
0-0.60
12.0
12.0
12.0
0.60
--
--
--
0.60
0.60 --
--
--
Southern pine
2.50 or 85
0-0.60
12.0
12.0
12.0
0.60
--
--
--
0.60
0.60 --
--
--
For other timbers used in
fresh water or in ground
contact
Coastal Douglas-Fir,
0.75 and 90
0-0.60
10.0
10.0
10.0
0.50
0.62
0.62
0.50
0.40
0.40 --
--
--
western larch, and
redwood
Western hemlock, jack,
0.75 and 90
10.0
0.50
0.62
0.62
0.50
0-0.60
10.0
10.0
0.40
0.40 --
--
--
lodgepole, sugar, red,
northern white, and
western white pines
Southern and ponderosa
2.50 of
85
0-0.60
10.0
10.0
10.0
0.50
0.62
0.62
0.50
0.40
0.40 --
--
--
pines
|
 
|
|
|
||
