Significance and Use
4.1 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.
1.1 These test methods cover procedures for testing cellulose acetate.
1.2 The test procedures appear in the following sections:
Color and Haze
Combined Acetyl or Acetic Acid Content
Test Method A. Solution Method
Test Method B. Heterogeneous Saponification Method
Primary Hydroxyl Content
Sulfur or Sulfate Content
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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