Quantcast Table 1. Treatment of Sawn Wood Products -Cont. - mo3120206

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Minimum net retention of active preservative1/
Treating
Penetration
Assay
Form of product and
service conditions
specifi-
Zone
cations2/
(AWPA C1
and
others
listed
below)
In. and/or In.
--------------------------pounds
per
cubic
foot--------------------------
pct of
sapwood
C2,
Lumber:
C14,
For use in coastal waters
C16,
In areas where Limnoria
and
tripunctata and pholads are
C18
known to be active,
or in southern areas for
which information on the
borer hazard is lacking the
dual treatment shall be
used (see table III)
In areas where moderate to
heavy limnoria attack is
expected but pholads
are absent
-- --
--
--
--
--
--
2.50 2.50 --
Coastal Douglas Fir
0.50 and 90
O-0.60
-- --
--
--
--
--
--
2.50 2.50 --
Western hemlock
0.50 and 90
O-0.60
-- --
--
--
--
--
--
2.50 2.50 --
Southern,  ponderosa,
0.75 or 85
O-0.60
and red pines
In areas where teredo are
present with light
limnoria  activity
-- --
--
--
--
--
3/
2.50  2.50 --
0-0.60
25.0  --  --
Coastal Douglas-fir
0.50 and 90
-- --
--
--
--
--
3/25.0  --  --
2.50 2.50 --
0.50 and 90
O-0.60
Western hemlock
-- --
--
--
--
--
3/
25:0 4/25.0 --
2.50 2.50 --
0.75 or 85
Southern, ponderosa,
O-0.60
and red pines
In areas where teredo are
present with no
limnoria activity
--
--
--
-- --
--
--
--
5/
20.0
--
--
--
Coastal  Douglas-fir  and  0.50 and 90
0-0.60
western hemlock
--
--
--
--
-- --
--
--
5/
6/
20.0
20.0
--
--
0.75 or 85
Southern, ponderosa,
O-0.60
and red pines





 


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