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  • TAPPI T 428 : 2013

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    HOT WATER EXTRACTABLE ACIDITY OR ALKALINITY OF PAPER

    Available format(s):  Hardcopy, PDF

    Superseded date:  23-11-2021

    Language(s):  English

    Published date:  31-12-2012

    Publisher:  Technical Association of the Pulp & Paper Industry

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    Table of Contents - (Show below) - (Hide below)

    1 Scope
    2 Summary
    3 Significance
    4 Definitions
    5 Apparatus
    6 Reagents
    7 Sampling
    8 Test specimen
    9 Procedure
    10 Calculations
    11 Report
    12 Precision
    13 Keywords
    14 Additional information
    Literature Cited

    Abstract - (Show below) - (Hide below)

    Evaluates the titratable acidity or alkalinity (end point at pH 7.0) of an aqueous extract of paper (filtered and extracted by boiling water for 1 h). It specifies one extraction and so does not measure the total acidity or alkalinity of paper, for which exhaustive extraction is required.

    General Product Information - (Show below) - (Hide below)

    Document Type Official Test Method
    Publisher Technical Association of the Pulp & Paper Industry
    Status Superseded
    Superseded By

    Standards Referencing This Book - (Show below) - (Hide below)

    TAPPI T 400 : 2011 SAMPLING AND ACCEPTING A SINGLE LOT OF PAPER, PAPERBOARD, CONTAINERBOARD, OR RELATED PRODUCT
    TAPPI T 435 : 2002 HYDROGEN ION CONCENTRATION (pH) OF PAPER EXTRACTS (HOT EXTRACTION METHOD)
    ASTM E 70 TEST METHOD FOR PH OF AQUEOUS SOLUTIONS WITH THE GLASS ELECTRODE
    TAPPI T 1200 : 2014 INTERLABORATORY EVALUATION OF TEST METHODS TO DETERMINE TAPPI REPEATABILITY AND REPRODUCIBILITY
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