ASTM D 778 : 1997 : R2002
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Test Methods for Hydrogen Ion Concentration (pH) of Paper Extracts (Hot- Extraction and Cold-Extraction Procedures)
Hardcopy , PDF
11-11-2014
English
10-12-1997
Important note : Users cannot be edited or removed once added to your Multi user PDF.CONTAINED IN VOL. 15.09, 2009 Provides two procedures for determining the hydrogen ion concentration, expressed in terms of pH, of an aqueous extract of paper.
| Committee |
D 06
|
| DocumentType |
Test Method
|
| Pages |
4
|
| ProductNote |
Reconfirmed 2002
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
1.1 These test methods cover two procedures for determination of the hydrogen ion concentration, expressed in terms of pH, of an aqueous extract of paper.
1.2 These test methods may be applied to writing, printing, and sized industrial papers.
1.3 These test methods are not intended to be used for determination of pH of insulating papers, for that see Test Methods D 202.
1.4 The test methods appear as follows:
| Section | |
| Test Method A—pH of Paper (Unfiltered Extract) After Extraction for 1 h in Cold (25 ± 5°C) Water | 11.1 |
| Test Method B—pH of Paper (Unfiltered Extract) After Extraction for 1 h in Boiling Water | 11.2 |
1.5 Specifications may be based on Test Method A or Test Method B, or both.
1.6 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.
1.7 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.
| ASTM E 122 : 2017 : REDLINE | Standard Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or Process |
| ASTM D 585 : 1997 | Standard Practice for Sampling and Accepting a Single Lot of Paper, Paperboard, Fiberboard, and Related Product |
| ASTM D 202 : 2017 : REDLINE | Standard Test Methods for Sampling and Testing Untreated Paper Used for Electrical Insulation |
| ASTM E 70 | TEST METHOD FOR PH OF AQUEOUS SOLUTIONS WITH THE GLASS ELECTRODE |
| ASTM D 1968 : 2015 | Standard Terminology Relating to Paper and Paper Products |
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