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ASTM D817-12

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Standard Test Methods of Testing Cellulose Acetate Propionate and Cellulose Acetate Butyrate

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1.1 These test methods cover procedures for the testing of cellulose acetate propionates and acetate butyrates. These esters may vary widely in composition and properties, so certain of the procedures can be used only in the ranges of composition where they are suitable.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 The test procedures appear in the following sections:

Sections

Acetyl Propionyl or Butyryl Contents

28-37

Acetyl Content, Apparent

18-27

Acidity, Free

12-17

Ash

7-10

Color and Haze

77-81

Heat Stability

57-65

Hydroxyl Content

38-44

Hydroxyl Content, Primary

46-50

Intrinsic Viscosity

67-71

Moisture Content

5-6

Sulfur or Sulfate Content

51-56

Viscosity

74-75

Limiting Viscosity Number

67-71


1.4 This standard does not purport to address 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.


7.1 Ash content gives an estimate of the inorganic content of cellulose ester samples. The presence of high levels of inorganic content (ash) can be detrimental to the melt stability and optical clarity of a cellulose ester in melt processing or act as a potential source of insolubles when the ester is used in solution.

SDO ASTM: ASTM International
Document Number D817
Publication Date Nov. 1, 2012
Language en - English
Page Count 15
Revision Level 12
Supercedes
Committee D01.36
Publish Date Document Id Type View
Nov. 1, 2012 D0817-12 Revision
June 1, 2004 D0817-96R04E01 Revision
Jan. 1, 1996 D0817-96 Revision
Dec. 1, 2019 D0817-12R19 Reaffirmation
June 1, 2010 D0817-96R10 Reaffirmation
June 1, 2004 D0817-96R04 Reaffirmation