ASTM D871-96(2010)

Standard Test Methods of Testing Cellulose Acetate

SIGNIFICANCE AND USE
Moisture content of the cellulose ester can be used to estimate the dry weight of the cellulose ester. Since cellulose esters are desiccants, their moisture content can vary greatly depending on storage.
SCOPE
1.1 These test methods cover procedures for testing cellulose acetate.
1.2 The test procedures appear in the following sections:

General Information

• Status: Historical
• Publication Date: 31-May-2010
• ICS: 85.040 - Pulps
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.36 - Cellulose and Cellulose Derivatives

Relations

• Replaces: ASTM D871-96(2004) - Standard Test Methods of Testing Cellulose Acetate
• Effective Date: 01-Jun-2010
• Replaced By: ASTM D871-96(2019) - Standard Test Methods of Testing Cellulose Acetate
• Effective Date: 01-Jan-2019
• Referred By: ASTM D5897-13(2021) - Standard Test Method for Determination of Percent Hydroxyl on Cellulose Esters by Potentiometric Titration—Alternative Method
• Effective Date: 01-Jun-2010
• Referred By: ASTM E1899-23 - Standard Test Method for Hydroxyl Groups Using Reaction with <emph type="ital">p</emph >-Toluenesulfonyl Isocyanate (TSI) and Potentiometric Titration with Tetrabutylammonium Hydroxide
• Effective Date: 01-Jun-2010
• Referred By: ASTM D1343-95(2019) - Standard Test Method for Viscosity of Cellulose Derivatives by Ball-Drop Method
• Effective Date: 01-Jun-2010
• Referred By: ASTM D2929-89(2019)e1 - Standard Test Method for Sulfur Content of Cellulosic Materials by X-Ray Fluorescence
• Effective Date: 01-Jun-2010
• Referred By: ASTM D4209-07(2019) - Standard Practice for Determining Volatile and Nonvolatile Content of Cellulosics, Emulsions, Resin Solutions, Shellac, and Varnishes
• Effective Date: 01-Jun-2010

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D871 − 96 (Reapproved 2010)
Standard Test Methods of Testing
1
Cellulose Acetate
This standard is issued under the fixed designation D871; 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 U.S. Department of Defense.
1. Scope on Cellulose Esters by Potentiometric Titration—
Alternative Method
1.1 These test methods cover procedures for testing cellu-
lose acetate.
3. Purity of Reagents
1.2 The test procedures appear in the following sections:
3.1 Reagent grade chemicals shall be used in all tests.
Sections
Unless otherwise indicated, it is intended that all reagents shall
Ash 8 to 11
conform to the specifications of the Committee on Analytical
Color and Haze 67 to 72
Reagents of the American Chemical Society, where such
Combined Acetyl or Acetic Acid Content
3
Test Method A. Solution Method 17, 19 to 23
specifications are available. Other grades may be used, pro-
Test Method B. Heterogeneous Saponification Method 17, 24 to 26
vided it is first ascertained that the reagent is of sufficiently
Free Acidity 12 to 16
high purity to permit its use without lessening the accuracy of
Heat Stability 47 to 56
Hydroxyl Content 27 to 33
the determination.
Intrinsic Viscosity 57 to 62
Moisture Content 4 to 7
3.2 Unless otherwise indicated, references to water shall be
Primary Hydroxyl Content 34 to 39
understood to mean reagent tared, low, wide-form weighing
Sulfur or Sulfate Content 40 to 45
bottle and water, conforming to Specification D1193.
Viscosity 63 to 66
1.3 The values stated in SI units are to be regarded as the
MOISTURE CONTENT
standard. The values given in parentheses are for information
only. 4. Significance and Use
1.4 This standard does not purport to address all of the
4.1 Moisture content of the cellulose ester can be used to
safety concerns, if any, associated with its use. It is the
estimate the dry weight of the cellulose ester. Since cellulose
responsibility of the user of this standard to establish appro-
esters are desiccants, their moisture content can vary greatly
priate safety and health practices and determine the applica-
depending on storage.
bility of regulatory limitations prior to use.
5. Procedure
2. Referenced Documents
5.1 Transfer about5gofthe sample to a tared, low,
2
2.1 ASTM Standards: wide-form weighing bottle and weigh to the nearest 0.001 g.
D1193 Specification for Reagent Water Dry in an oven for2hat105 6 3°C. Remove the bottle from
D1343 Test Method for Viscosity of Cellulose Derivatives the oven, cover, cool in a desiccator, and weigh.
by Ball-Drop Method
6. Calculation
D2929 Test Method for Sulfur Content of Cellulosic Mate-
rials by X-Ray Fluorescence
6.1 Calculate the percentage of moisture as follows:
D5897 Test Method for Determination of Percent Hydroxyl
Moisture,% 5 A/B 3100
~ !
where:
1
These test methods are under the jurisdiction of ASTM Committee D01 on
A = weight loss on heating, g, and
Paint and Related Coatings, Materials, and Applications and are the direct
responsibility of Subcommittee D01.36 on Cellulose and Cellulose Derivatives.
CurrenteditionapprovedJune1,2010.PublishedJuly2010.Originallyapproved
3
in 1946. Last previous edition approved in 2004 as D871 – 96 (2004). DOI: Reagent Chemicals, American Chemical Society Specifications, American
10.1520/D0871-96R10. Chemical Society, Washington, DC. For suggestions on the testing of reagents not
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or listed by the American Chemical Society, see Analar Standards for Laboratory
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
Standards volume information, refer to the standard’s Document Summary page on and National Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville,
the ASTM website. MD.
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D871 − 96 (2010)
13.2 Sodium Hydroxide, Standard Solution—(0.01 N)—
B = sample used, g.
Prepare and standardize a 0.01N solution of sodium hydroxide
(NaOH).
7. Precision and Bias
7.1 No statement on bias can be made as no reference
14. Procedure
material is available as a standard.
14.1 Shake5gofthe sample, ground to pass a No. 20 (850
ASH
µm) sieve and corrected for moisture content if necessary, in a
250-mL Erlenmeyer flask with 150 mL of freshly boiled, cold
8. Significance and Use
water. Stopper the flas
...