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ASTM D4094-07

(Test Method)

Standard Test Method for Acid Content of Ethylene-Acrylic Acid Copolymers (Withdrawn 2015)

Standard Test Method for Acid Content of Ethylene-Acrylic Acid Copolymers (Withdrawn 2015)

SCOPE
1.1 This test method covers the determination of the acid content of ethylene-acrylic acid (EAA) copolymers containing 2.5 to 25 weight % of acrylic acid.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parenthesis are for information only.
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. Specific hazards statements are given in Section .Note 1
There is no similar or equivalent ISO standard.
WITHDRAWN RATIONALE
This test method covers the determination of the acid content of ethylene-acrylic acid (EAA) copolymers containing 2.5 to 25 weight % of acrylic acid.
Formerly under the jurisdiction of Committee D20 on Plastics, this test method was withdrawn in April 2015 in accordance with section 10.6.3 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.

General Information

Status
Withdrawn
Publication Date
31-Oct-2007
Withdrawal Date
05-Apr-2015
ICS
83.080.20 - Thermoplastic materials
Technical Committee
D20 - Plastics
Drafting Committee
D20.70 - Analytical Methods
Current Stage
Ref Project

Relations

Replaces
ASTM D4094-00 - Standard Test Method for Acid Content of Ethylene-Acrylic Acid Copolymers
Effective Date
01-Nov-2007

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ASTM D4094-07 - Standard Test Method for Acid Content of Ethylene-Acrylic Acid Copolymers (Withdrawn 2015)ASTM D4094-07 - Standard Test Method for Acid Content of Ethylene-Acrylic Acid Copolymers (Withdrawn 2015)
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ASTM D4094-07 - Standard Test Method for Acid Content of Ethylene-Acrylic Acid Copolymers (Withdrawn 2015)
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D4094 − 07
StandardTest Method for
1
Acid Content of Ethylene-Acrylic Acid Copolymers
This standard is issued under the fixed designation D4094; 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.
1. Scope* 5. Significance and Use
1.1 This test method covers the determination of the acid 5.1 EAAcopolymerspossessunusualchemicalandphysical
content of ethylene-acrylic acid (EAA) copolymers containing properties because they contain free acid groups. Since poly-
2.5 to 25 weight % of acrylic acid. mer performance in end-use applications is a function of the
amount of copolymerized acrylic acid, it is important that acid
1.2 The values stated in SI units are to be regarded as the
contents be determined quantitatively by a suitable method,
standard. The values given in parenthesis are for information
such as that described herein.
only.
1.3 This standard does not purport to address all of the
6. Apparatus
safety concerns, if any, associated with its use. It is the
6.1 Balance, analytical, with precision of 0.0001 g.
responsibility of the user of this standard to establish appro-
6.2 Buret, 25-mL, 0.1-mL subdivisions, Class A, polytetra-
priate safety and health practices and determine the applica-
fluoroethylene stopcock.
bility of regulatory limitations prior to use. Specific hazards
statements are given in Section 8.
6.3 Flask,Erlenmeyer,250-mL,femalestandard-taperjoint,
with condenser, reflux, matching male standard-taper joint.
NOTE 1—There is no similar or equivalent ISO standard.
6.4 Stirrer/Hotplate, magnetic.
2. Referenced Documents
6.5 Stirrer, magnetic.
2
2.1 ASTM Standards:
6.6 Stirring Bar, magnetic, 40 mm (1.5 in.) long,
E177 Practice for Use of the Terms Precision and Bias in
polytetrafluoroethylene-encased.
ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to
7. Reagents and Materials
Determine the Precision of a Test Method
7.1 Xylene, reagent-grade.
IEEE/ASTM SI-10 Standard for Use of the International
System of Units (SI): The Modern Metric System
7.2 n-Butanol, reagent-grade.
7.3 MixedSolvent—Mix3volumesofxylenewith1volume
3. Terminology
of n-butanol.
3.1 Units and symbols used in this test method are those
7.4 Tetrabutylammonium Hydroxide (TBAH), solution in
recommended in IEEE/ASTM SI-10. Additional acronyms
methanol, in 1 M concentration.
unique to this test method are defined in the text.
7.5 Standard Base (0.1 N)—Mix 1 volume of 1 M TBAH
4. Summary of Test Method
solution with 9 volumes of mixed solvent.
4.1 In this test method, a weighed specimen is dissolved in
7.6 Benzoic Acid, primary standard.
a suitable hot solvent and titrated while hot with standard base
7.7 Thymol Blue (TB) Indicator (Formula Weight of
to a visual equivalence point.
466.58)—Prepare 0.5 % solution by weighing 0.125 g of
reagent-grade TB (acid form) into a small beaker, adding 25
1
This test method is under the jurisdiction ofASTM Committee D20 on Plastics mLof mixed solvent, and adding 0.268 milliequivalents of 0.1
and is the direct responsibility of Subcommittee D20.70 on Analytical Methods
N base to form a clear, red-orange solution. Transfer to a
(Section D20.70.11).
glass-dropping bottle.
Current edition approved Nov. 1, 2007. Published November 2007. Originally
approved in 1982. Last previous edition approved in 2000 as D4094 – 00. DOI:
8. Hazards
10.1520/D4094-07.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
8.1 Solvents and titrants are odorous and flammable and can
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
cause burns to skin, eyes, and lungs.Wear proper body and eye
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. protection when handling these materials and conduct all
*A Summary of Changes section appears at the end of this standard
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959. United States
1

---------------------- Page: 1 ----------------------
D4094 − 07
TABLE 1 Acrylic Acid Content
operations in a fume hood from which all possible sources of
ignition have been removed. Materials Average S S rR
r R
6.6% 6.6833 0.0370 0.0769 0.1035 0.2153
9.5% 9.4467 0.1252 0.1477 0.3505 0.4136
9. Test Specimen
20.1% 20.2344 0.1044 0.3083 0.2923 0.8632
9.1 Analyze samples in the form as received. Pellets or 20.2% 20.4150 0.1772 0.3549 0.4961 0.9937
powder are suitable.
9.2 Analyze samples in duplicate.
10. Standardization
12.2 Transfer the weighed specimen to a flask containing a
stirring bar and add 100 mL of mixed solven
...

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