ASTM D367-94(2000)e1

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
American Association State
e1
Designation:D367–94 (Reapproved 2000) Highway and Transportation Officials Standard
AASHTO No. T81
Standard Test Method for
Xylene-Insoluble Matter in Creosote
This standard is issued under the fixed designation D 367; 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—Keywords were added editorially in March 2000.
1. Scope 5. Apparatus and Materials
1.1 Thistestmethodcoversthedeterminationofthexylene- 5.1 Filtering Crucibles, porcelain with fine-porosity bottom
insoluble matter in creosote and creosote-coal tar solution. 40-mL capacity, high form, maximum pore diameter, 7µ m .
Since this method is empirical, strict adherence to all details of 5.2 Filter Apparatus, Filter Flask and Tube, with crucible
the procedure is necessary for close agreement of results adapter, and means for producing a vacuum.
among laboratories. 5.3 Diatomaceous SilicaAnalytical Filter , shall be dried to
1.1.1 Test Methods D 38 covers the sampling of wood a constant weight at 105°C and stored in tightly stoppered
preservatives prior to testing. container. (Any other grade of filtering medium should not be
1.2 This standard does not purport to address all of the used because porosities differ.)
safety concerns, if any, associated with its use. It is the 5.4 Balance and Weights, accurate to 0.5 mg.
responsibility of the user of this standard to establish appro- 5.5 Xylene, five-degree distillation range, conforming to
priate safety and health practices and determine the applica- Specification D 845.
bility of regulatory limitations prior to use. 5.6 Acetone, boiling at a pressure of 760 mm Hg within a
range of 1.0°C, which shall include the temperature of 56.1°C.
2. Referenced Documents
6. Preparation of Filter Crucible
2.1 ASTM Standards:
D 38 Test Methods for Sampling Wood Preservatives Prior 6.1 Make and record all weighings to the nearest 0.5 mg.
to Testing 6.2 Clean a crucible, if used for less than six determinations
D 370 Test Method for Dehydration of Oil-Type Preserva- as follows. Remove the mat, wash the crucible with distilled
tives water,dryandigniteinamufflefurnacefor1hatabout800°C.
D 845 Specification for Five-Degree Xylene Cool the crucible slowly to prevent cracking and place it in a
desiccator while still warm.
3. Summary of Test Method
6.3 After a crucible has been used for six determinations,
3.1 The sample is digested in hot xylene and filtered. The remove any residual ash from pores in the filtering area by
insoluble matter is washed, dried, and weighed.
boiling in 1 + 1 hydrochloric acid. Then boil the crucible in
distilled water, thoroughly back wash with distilled water, dry,
4. Significance and Use
and ignite as above.
4.1 The test is useful in evaluating and characterizing
6.4 Transfer0.45to0.55 gofdiatomaceoussilicatoaclean,
creosote and as one element in establishing the uniformity of
filtering crucible, distributing it evenly over the bottom. Dry in
shipments and sources of supply.
an oven at 105 to 110°C for 30 min. Cool in a desiccator and
weigh. Record the weight of crucible plus diatomaceous silica.
7. Procedure
This test method is under the jurisdiction of ASTM Committee D-7 on Wood
7.1 Take the original, undehydrated sample and, if neces-
and is the direct responsibility of Subcommittee D07.06 on Treatments for Wood
sary, heat and stir until any crystalline material is in solution
Products.
Current edition approved April 15, 1994. Published June 1994. Originally
and the sample is homogeneous. Determine the percentage of
published as D 367 – 33. Last previous edition D 367 – 88.
water in accordance with Test Method D 370.
This test method is identical in substance with the Standard Method for the
7.2 Weigh the following size sample, into a 100-mLbeaker:
Determination of the Amount of Material Insoluble in Xylene which is part of the
American Wood-Preservers’Association Standard Methods ofAnalysis of Creosote
and Oil Type Preservatives (A1-62). Acknowledgment is made to the A
...