ASTM D914-00(2006)
(Test Method)Standard Test Methods for Ethylcellulose
Standard Test Methods for Ethylcellulose
SIGNIFICANCE AND USE
The results of this test are used for calculating the total solids in the sample and, by common usage, all materials volatile at this test temperature are designated as moisture.
Moisture analysis (along with sulfated ash) is used to calculate the amount of active polymer in the material and shall be considered when determining the amount of ethylcellulose in various functions.
SCOPE
1.1 These test methods cover the testing of ethylcellulose.
1.2 The test procedures appear in the following order: SectionsMoisture to Sulfated Ash to Chlorides (as Sodium Chloride) to Ethoxyl Content to Viscosity to
1.3The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
This standard may involve hazardous materials, operations, and equipment. 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.
1.4 This test method covers the determination of the volatile content of ethylcellulose.
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D914 − 00 (Reapproved 2006)
StandardTest Methods for
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Ethylcellulose
This standard is issued under the fixed designation D914; 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 conform to the specifications of the Committee on Analytical
Reagents of the American Chemical Society, where such
1.1 These test methods cover the testing of ethylcellulose.
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specifications are available. Where such specifications have
1.2 The test procedures appear in the following order:
not been established, reagents of the best grade available shall
Sections
be used. References to water shall be understood to mean
Moisture 4 to 6
distilled water.
Sulfated Ash 7 to 11
Chlorides (as Sodium Chloride) 12 to 16
Ethoxyl Content 20 to 24 MOISTURE
Viscosity 25 to 39
1.3 The values stated in SI units are to be regarded as
4. Scope
standard. The values given in parentheses are for information
4.1 Thistestmethodcoversthedeterminationofthevolatile
only.
content of ethylcellulose.
1.4 This standard may involve hazardous materials,
operations, and equipment. This standard does not purport to
5. Significance and Use
address all of the safety concerns, if any, associated with its
5.1 The results of this test are used for calculating the total
use. It is the responsibility of the user of this standard to
solids in the sample and, by common usage, all materials
establish appropriate safety and health practices and deter-
volatile at this test temperature are designated as moisture.
mine the applicability of regulatory limitations prior to use.
5.2 Moisture analysis (along with sulfated ash) is used to
2. Referenced Documents
calculatetheamountofactivepolymerinthematerialandshall
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2.1 ASTM Standards:
be considered when determining the amount of ethylcellulose
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D362 Specification for Industrial Grade Toluene
in various functions.
D446 Specifications and Operating Instructions for Glass
Capillary Kinematic Viscometers
6. Apparatus
D841 Specification for Nitration Grade Toluene
6.1 Oven, gravity convection, capable of maintaining a
D4794 Test Method for Determination of Ethoxyl or Hy-
temperature of 105 6 3°C.
droxyethoxyl Substitution in Cellulose Ether Products by
Gas Chromatography
6.2 Weighing Bottles.
E1 Specification for ASTM Liquid-in-Glass Thermometers
6.3 Analytical Balance.
3. Purity of Reagents and Materials
7. Procedure
3.1 Reagent grade chemicals shall be used in all tests.
Unless otherwise indicated, all of the reagents used shall
7.1 Weigh accurately 2 to5gofthe sample to the nearest
0.001 g into a tared dish (fitted with a lid) and dry for2hinan
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These test methods are under the jurisdiction of ASTM Committee D01 on
oven at 100 to 105°C. Remove the dish from the oven, cover
Paint and Related Coatings, Materials, and Applications and are the direct
with a lid, cool in a desiccator, and weigh.
responsibility of Subcommittee D01.36 on Cellulose and Cellulose Derivatives.
Current edition approved April 1, 2006. Published April 2006. Originally
approved in 1947. Last previous edition approved in 2000 as D914 – 00. DOI:
10.1520/D0914-00R06.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or Reagent Chemicals, American Chemical Society Specifications, American
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Chemical Society, Washington, DC. For suggestions on the testing of reagents not
Standards volume information, refer to the standard’s Document Summary page on listed by the American Chemical Society, see Analar Standards for Laboratory
the ASTM website. Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
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Withdrawn. The last approved version of this historical standard is referenced and National Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville,
on www.astm.org. MD.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D914 − 00 (Reapproved 2006)
8. Calculation 16. Precision and Bias
8.1 Calculate the percent moisture, M as follows: 16.1 Precision—Statistical analysis of interlaboratory (re-
producibility) test results indicates a precision of 610 % at the
M 5 A/B 3100 (1)
~ !
95 % confidence level.
where:
16.2 Bias—No statement of bias can be made as no suitable
A = mass loss on heating, g, and
reference material is available as a standard.
B = sample used, g.
CHLORIDES (as Sodium Chloride)
9. Precision and Bias
17. Scope
...
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