Standard Practice for Dehydration of Oil-Type Preservatives

SCOPE
1.1 This practice covers dehydrating oil-type preservatives. When a quantitative determination of the amount of water is desired, Test Method D 95 shall be used. Test Methods D 38 covers the sampling of wood preservatives prior to testing.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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Historical
Publication Date
09-Dec-2002
Technical Committee
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ASTM D370-02 - Standard Practice for Dehydration of Oil-Type Preservatives
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
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American Association State
Designation: D 370 – 02
Highway Transportation Officials Standard
AASHTO No. T 83
Standard Practice for
1
Dehydration of Oil-Type Preservatives
This standard is issued under the fixed designation D 370; 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.
1. Scope
1.1 This practice covers dehydrating oil-type preservatives.
When a quantitative determination of the amount of water is
desired, Test Method D 95 shall be used. Test Methods D 38
covers the sampling of wood preservatives prior to testing.
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
D 38 Test Methods for Sampling Wood Preservatives Prior
2
to Testing
D 95 Test Method for Water in Petroleum Products and
3
Bituminous Materials by Distillation
4
E 1 Specification for ASTM Thermometers
FIG. 1 Copper Still
3. Summary of Test Method
3.1 Water is removed from the preservative solution by
distillation in a copper still.
5. Apparatus
4. Significance and Use
5.1 Still—A vertical, cylindrical copper still, with remov-
4.1 This is a practice for the preparation of oil-type preser-
able flanged top and yoke, of the form and approximate
vatives to enable the results of distillation tests to be reported
dimensions shown in Fig. 1.
more accurately on a dry basis.
5.2 Thermometer—An ASTM High Distillation Thermom-
eter, total immersion, graduated in either Celsius or Fahrenheit
degrees as specified, having a range from −2 to +400°C or 30
1
This practice is under the jurisdiction of ASTM Committee D07 on Wood and
to 760°F, and conforming to the requirements for Thermometer
is the direct responsibility of Subcommittee D07.06 on Treatments for Wood
8C or 8F as prescribed in Specification E 1.
Products.
Current edition approved Dec. 10, 2002. Published February 2003. Originally
5.3 Condenser—A copper trough condenser, with straight-
approved in 1933 as D 370 – 33 T. Last previous edition approved in 1995 as
walled glass tube, having approximately the form and dimen-
e1
D 370 – 84 (1995) .
sions shown in Fig. 2.
This practice is substantially in agreement with the Standard Method for the
Determination of Water in Oil-Type Preservatives which is part of the American 5.4 Separatory Funnel, conforming to the requirements
Wood-Preservers’ Association Standard Methods for Analysis of Creosote and
shown in Fig. 3. It shall have a total capacity of approximately
Oil-Type Preservatives (A1). Acknowledgement is made to the American Wood-
200 mL, with the lower 20 mL graduated accurately in 0.1 mL.
Preservers’ Association for its development of the subject matter covered in this
The graduation marks shall be numbered for each millilitre. A
standard.
2
Annual Book of ASTM Standards, Vol 04.10.
separatory funnel of the Squibb type, having a capacity of
3
Annual Book of ASTM Standards, Vol 05.01.
approximately 100 mL, may be used.
4
Annual Book of ASTM Standards, Vol 14.03.
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