ASTM D4064-89(1995)e1

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
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e1
Designation: D 4064 – 89 (Reapproved 1995) An American National Standard
Standard Practice for
Preservative Treatment of Utility Poles by the Thermal
Process
This standard is issued under the fixed designation D 4064; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
e NOTE—Section 10 was added editorially in November 1995.
1. Scope 3. Terminology
1.1 This practice covers the full-length preservative treat- 3.1 Definitions of Terms Specific to This Standard:
ment of utility poles by the thermal process. 3.1.1 groundline or setting depth—the groundline distance
1.2 Poles furnished under this practice shall be limited to the from the butt.
following species:
4. Description of Treating Process
Douglas fir (Pseudotsuga menziesii),
4.1 The thermal process consists of at least two operations,
Lodgepole pine (Pinus contorta),
Alaska yellow cedar (Chamaecyparis nootkatensis), namely the hot and the cold or cooling cycles. A cold cycle is
accomplished by removing the preservative of the hot cycle
Northern white cedar (Thuja occidentalis), and
Western red cedar (Thuja plicata). from the treating tank and replacing it with preservative at a
lower temperature. A cooling cycle is accomplished by allow-
1.3 The purchaser should note that requirements both within
and between species vary and care must be used in selection of ing the preservative of the hot cycle to remain in the treating
tank and cool. In addition, a final expansion cycle with hot
specific options for the intended use and service area.
preservative may be applied.
2. Referenced Documents
4.2 At no time during the entire process shall the tempera-
2.1 ASTM Standards: ture of the preservative exceed 230°F (110°C).
D 390 Specification for Coal-Tar Creosote for the Preserva-
5. Plant Equipment
tive Treatment of Piles, Poles, and Timbers for Marine,
5.1 Treating plants shall be equipped with thermometers,
Land, and Fresh Water Use
D 1272 Specification for Pentachlorophenol gages, clocks, recording devices, and related items to indicate
accurately the conditions at all stages of the treating process.
D 1860 Test Method for Moisture and Creosote-Type Pre-
servative in Wood Such equipment shall be maintained in acceptable, working
condition.
D 2085 Test Method for Determining Chloride Used In
Calculating Pentachlorophenol in Solutions or Wood 5.2 The apparatus and chemicals necessary for making
analyses and tests required shall be provided by plant operators
(Lime Ignition Method)
D 2604 Specification for High-Boiling Hydrocarbon Sol- and kept in condition for use at all times.
vent for Preparing Oil-Borne Preservative Solutions
6. Prior to Treatment
2.2 Other Standard:
6.1 Seasoning—Before treatment, poles shall be air sea-
ANSI 05.1 American National Standard Specifications and
soned as defined in ANSI 05.1, Paragraph 4.1.2.1, under proper
Dimensions for Wood Poles
sanitary conditions to minimize checking after treatment and to
permit maximum penetration and retention of preservative.
This practice is under the jurisdiction of ASTM Committee D-7 on Wood, and
Certain arid areas will require lower moisture contents than the
is the direct responsibility of Subcommittee D07.06 on Treatments for Wood
values expressed in this practice.
Products.
6.1.1 Determination of Moisture Content—Prior to treat-
Current edition approved Oct. 27, 1989. Published December 1989. Originally
published as D 4064 – 81. Last previous edition D 4064 – 83.
ment, determine the moisture content of a charge or carload
Some requirements in this practice are similar to those in the Commodities
(whichever is less in number) by either of the following
Standards of the American Wood-Preservers’ Association for full-length preserva-
methods: (a) Use of an approved resistance type moisture
tive treatment of utility poles by the thermal process with preservative materials and
meter equipped with insulated needles. The needles shall be
solutions. Acknowledgment is made to the American Wood-Preservers’ Association
for its development of subject matter used in this practice.
driven to a depth equal to the minimum preservative penetra-
Annual Book of ASTM Standards, Vol 04.10.
tion for standard treatments; (b) Oven-drying increment borer
Available from American National Standards Institute, 11 W. 42nd St., 13th
cores. The sample used shall be the aggregate sapwood present
Floor, New York, N. Y. 10036.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
D 4064
in cores (heartwood discarded) dried to constant weight at penetration requirements subject to retreatment.
220°F (105°C). 8.2.2 Selective Inspection—Tentatively accept the charge or
6.1.2 Location of Samples—Determine meter readings at, or
carload if 18 or more borer cores from 20 poles selected as
remove increment borer cores from, a point approximately representing the treatment meet penetration requirements. If 16
halfway between the extreme top and extreme butt of the pole.
or 17 of the 20 borer cores meet penetration requirements, all
Take borer cores to a depth at least equal to the depth of the poles are subject to the 100 % inspection of 8.2.1. If less than
sapwood.
16 borer cores meet penetration requirements, reject all poles,
6.1.3 Basis of Calculation—express all moisture contents as subject to retreatment.
a percentage of the oven-dry weight.
8.2.3 Distinguishing Heartwood and Sapwood—In order to
6.1.4 Testing for moisture content—If 100 % inspection for test for penetration conformity in Lodgepole pine or Douglas
moisture content is not specified, test not less than 10 % of the
fir, it may be necessary to use approved staining procedures to
poles in a tankload, but in no case less than 12 poles. Test all distinguish between the sapwood and heartwood.
Alaska yellow cedar poles for moisture content.
8.3 Retention—Preservative retention values shall be the
6.2 Machine Shaving—When so specified, poles shall be
aggregate average for the assay zone specified of the first 20
machine shaved above the groundline area for the balance of
increment borer cores that are in good physical condition. No
their entire length. Keep shaving depth to a minimum but make portion of any borer core that has been subjected to heartwood-
it deep enough to ensure the removal of all inner bark. This
sapwood indicator may be used for retention determination.
operation may be in addition to machine peeling for bark Reject all poles from charges or carloads failing to meet
removal at time of tree harvest.
minimum preservative retention requirements, subject to re-
6.3 Incising—In all incising operations, the wood shall not
treatment.
be splintered or loosened from the pole. The incisions shall be
8.3.1 Determine pentachlorophenol retentions using Test
reasonably clean-cut and their spacing pattern and depth shall
Method D 2085.
be such as to ensure uniform penetration of preservation to the
8.3.2 Determine creosote retention using Test Method
required depth throughout the incised section. The depth of
D 1860.
incising shall be at least as deep as the minimum preservative
8.4 Plugging of Holes—Fill all increment
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