Standard Test Method for Ester Value of Solvents and Thinners

SIGNIFICANCE AND USE
This test method is useful in determining the assay of solvents and thinners which are esters or solutions of esters of carboxylic acid. The ester value is calculated as percent ester. This test method has its greatest application where the solvent or thinner is not a pure ester. This test method may be used in assessing compliance to specification.
SCOPE
1.1 This test method covers the determination of the ester value of solvents and thinners used in lacquers and other coatings.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 For purposes of determining conformance of an observed or a calculated value using this test method to relevant specifications, test result(s) shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E 29.
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. For a specific hazard statement, see 8.6.
1.4 For hazard information and guidance, see the supplier's Material Safety Data Sheet.

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Publication Date
31-May-2007
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ASTM D1617-07 - Standard Test Method for Ester Value of Solvents and Thinners
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D1617 − 07
StandardTest Method for
1
Ester Value of Solvents and Thinners
This standard is issued under the fixed designation D1617; 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 (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* consumed, which is determined by titrating the excess with
standard mineral acid, is a measure of the ester originally
1.1 This test method covers the determination of the ester
present.
value of solvents and thinners used in lacquers and other
coatings. 3.2 Since this determination is based on an acidimetric
titration,asuitablecorrectionshouldbeappliediftheacidityof
1.2 The values stated in SI units are to be regarded as
the sample exceeds the limit of the specification.
standard. No other units of measurement are included in this
standard.
4. Significance and Use
1.3 For purposes of determining conformance of an ob-
4.1 This test method is useful in determining the assay of
served or a calculated value using this test method to relevant
solvents and thinners which are esters or solutions of esters of
specifications, test result(s) shall be rounded off “to the nearest
carboxylic acid. The ester value is calculated as percent ester.
unit” in the last right-hand digit used in expressing the
This test method has its greatest application where the solvent
specification limit, in accordance with the rounding-off method
or thinner is not a pure ester. This test method may be used in
of Practice E29.
assessing compliance to specification.
1.4 This standard does not purport to address all of the
5. Interferences
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5.1 Organic chlorides, nitriles, and amides may be hydro-
priate safety and health practices and determine the applica-
lyzed by the reagent, particularly at 98°C, and are a possible
bility of regulatory limitations prior to use. For a specific
source of error. Ketones interfere only slightly with this
hazard statement, see 8.6.
procedure. Aldehydes consume some alkali, but the error
1.5 For hazard information and guidance, see the supplier’s
introduced by small amounts is negligible.
Material Safety Data Sheet.
6. Apparatus
2. Referenced Documents
6.1 Pressure Bottle, 200 to 350-mL capacity, made from
2
2.1 ASTM Standards:
heat-resistant glass.
D1193 Specification for Reagent Water
6.2 Container for Pressure Bottle—Asuitable safety device
E29 Practice for Using Significant Digits in Test Data to
to contain the pressure bottle. A metal container with hinged
Determine Conformance with Specifications
top and perforated bottom, a strong synthetic fabric or canvas
3. Summary of Test Method bag, or a safety shield may be used.
3.1 The specimen is reacted with a measured excess of 6.3 Ampoule, 1 or 2-mL capacity.
aqueous potassium hydroxide, using isopropanol as a mutual
6.4 Weighing Pipet, Lunge or similar type.
solvent if necessary. The amount of potassium hydroxide
6.5 Erlenmeyer Flasks, 250-mL glass-stoppered.
6.6 Buret, 50-mL capacity.
1
This test method is under the jurisdiction of ASTM Committee D01 on Paint
and Related Coatings, Materials, andApplications and is the direct responsibility of
6.7 Boiling Water Bath.
Subcommittee D01.35 on Solvents, Plasticizers, and Chemical Intermediates.
CurrenteditionapprovedJune1,2007.PublishedJuly2007.Originallyapproved
7. Reagents
in 1958. Last previous edition approved in 2001 as D1617 - 90 (2001). DOI:
10.1520/D1617-07.
7.1 Purity of Reagents—Reagent grade chemicals shall be
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
used in all tests. Unless otherwise indicated, it is intended that
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
all reagents shall conform to the specifications of the Commit-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. tee onAnalytical Reagents of theAmerican Chemical Society,
*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

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D1617 − 07
TABLE 1 Specimen Size and Reaction Conditions
8. Procedure
Isopropyl Minimum Reaction
8.1 Prepare a sufficient number of 250-mL, glass-stoppered
Alcohol Conditions
A
Ester Specimen, g
Added, Erlenmeyer flasks to make all blank and test determinations in
Time, Tempera-
mL
min ture, °C duplicate. Use heat-resistant press
...

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