ASTM D5008-01
(Test Method)Standard Test Method for Ethyl Methyl Pentanol Content and Purity Value of 2-Ethylhexanol By Gas Chromatography
Standard Test Method for Ethyl Methyl Pentanol Content and Purity Value of 2-Ethylhexanol By Gas Chromatography
SCOPE
1.1 This test method covers the determination of ethyl methyl pentanol content and purity value of 2-ethylhexanol.
1.2 Water and acid cannot be determined by this test method and must be determined in accordance with Test Methods D1613 and E203 and those results used to normalize the chromatographic data.
1.3 This standard does not purport to address all of the safety problems, 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. For a specific hazard statement, see 6.1.1.
1.4 For hazard information and guidance, see the supplier's Material Safety Data Sheet.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
Designation:D5008–01
Standard Test Method for
Ethyl Methyl Pentanol Content and Purity Value of
1
2-Ethylhexanol By Gas Chromatography
This standard is issued under the fixed designation D 5008; 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 * Acidity and water are measured by Test Methods D 1613 and
E 203, respectively, and the results are used to normalize the
1.1 This test method covers the determination of ethyl
values obtained by gas chromatography. An internal standard
methyl pentanol content and purity value of 2-ethylhexanol.
procedure is also included as an alternative calculation tech-
1.2 Waterandacidcannotbedeterminedbythistestmethod
nique. With this procedure, all impurities are determined
and must be determined in accordance with Test Methods
relative to the internal standard and the purity value is
D 1613 and E 203 and those results used to normalize the
determined by subtracting the sum of the impurities, water, and
chromatographic data.
acid from 100.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Significance and Use
responsibility of the user of this standard to establish appro-
4.1 This test method is used to determine the purity value
priate safety and health practices and determine the applica-
and ethyl methyl pentanol content of 2-ethylhexanol.
bility of regulatory limitations prior to use. For a specific
hazard statement, see 6.1.1.
5. Apparatus
1.4 For hazard information and guidance, see the supplier’s
5.1 Chromatograph—Any gas chromatograph designed or
Material Safety Data Sheet.
modifiedforusewithcapillaryorwide-borecapillarycolumns.
2. Referenced Documents The gas chromatograph should be equipped with a flame
ionization detector or other detector capable of operating with
2.1 ASTM Standards:
these columns and capable of detecting impurities at a level of
D 1613 Test Method for Acidity in Volatile Solvents and
0.01 weight % with a signal to noise ratio of at least 5:1.
Chemical Intermediates Used in Paint, Varnish, Lacquer,
2 5.2 Column—Any column capable of resolving
and Related Products
3 2-ethylhexanol from ethyl methyl pentanol and other impuri-
E 203 Test Method for Water Using Karl Fischer Titration
ties that may be present. The peaks should be resolved
3. Summary of Test Method quantitatively within a practical elapsed time. Columns that
meet the requirement of this test method are listed in Table 1.
3.1 Arepresentative specimen is introduced onto a capillary
Other columns may be used, provided the user establishes that
column. The 2-ethylhexanol is separated from the ethyl methyl
a column gives the required separations.
pentanol and other impurities while the components are trans-
5.3 Specimen Introduction System—Any system capable of
ported through the column by an inert carrier gas. The
introducing a representative specimen into the gas chromato-
separated components are measured in the effluent by a flame
graph may be used.A1-µLsyringe has been used successfully.
ionization detector and the areas for the peaks are determined
5.4 Computing Integrator—Any computing integrator ca-
by a suitable integration technique. The data are interpreted by
pable of accurately determining the peak areas generated
applying component detector response factors to the peak
during this analysis.
areas, and the relative concentrations are determined by relat-
5.5 Analytical Balance—The internal standard technique
ing the individual peak responses to the total peak response.
requires an analytical balance capable of measuring 0.1 mg.
1 6. Reagents and Materials
This test method is under the jurisdiction of ASTM Committee D01 on Paint
and Related Coatings, Materials, andApplications and is the direct responsibility of
6.1 Carrier Gas—Helium, purified nitrogen, or hydrogen
Subcommittee D01.35 on Solvents, Plasticizers, and Chemical Intermediates.
are suitable. The carrier gas should have a minimum purity of
Current edition approved May 10, 2001. Published July 2001. Originally
{1
99.95 mol %.
published as D 5008–89. Last previous edition D 5008–97 .
2
Annual Book of ASTM Standards, Vol 06.04.
3
Annual Book of ASTM Standards, Vol 15.05.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D5008
TABLE 1 Conditions and Retention Times
Case I Case II Case III
Column:
Material fused silica fused silica fused silica
Length, m
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.