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ASTM D778

97th Edition, 2002

Complete Document

Standard Test Methods for Hydrogen Ion Concentration (pH) of Paper Extracts (Hot- Extraction and Cold-Extraction Procedures)

Includes all amendments and changes through Reapproval Notice , 2007


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Product Details:

  • Revision: 97th Edition, 2002
  • Published Date: January 2007
  • Status: Not Active, See comments below
  • Document Language: English
  • Published By: ASTM International (ASTM)
  • Page Count: 4
  • ANSI Approved: Yes
  • DoD Adopted: No

Description / Abstract:

These test methods cover two procedures for determination of the hydrogen ion concentration, expressed in terms of pH, of an aqueous extract of paper.

These test methods may be applied to writing, printing, and sized industrial papers.

These test methods are not intended to be used for determination of pH of insulating papers, for that see Test Methods D 202.

Specifications may be based on Test Method A or Test Method B, or both.

Where a specification or specific instructions or agreement to use only one of these test methods is absent, determine pH using both procedures, and interpret results based on Section 12.

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.