• ASTM D 1293 : 1999 : R2005

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 pH of Water

    Available format(s):  Hardcopy, PDF

    Superseded date:  11-11-2014

    Language(s):  English

    Published date:  01-01-2005

    Publisher:  American Society for Testing and Materials

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    Scope - (Show below) - (Hide below)

    1.1 These test methods cover the determination of pH by electrometric measurement using the glass electrode as the sensor. Two test methods are given as follows:

    SectionsTest Method A-Precise Laboratory Measurement 8 to 15Test Method B-Routine or Continuous Measurement 16 to 24

    1.2 Test Method A covers the precise measurement of pH in water utilizing at least two of seven standard reference buffer solutions for instrument standardization.

    1.3 Test Method B covers the routine measurement of pH in water and is especially useful for continuous monitoring. Two buffers are used to standardize the instrument under controlled parameters, but the conditions are somewhat less restrictive than those in Test Method A.

    1.4 Both test methods are based on the pH scale established by NIST (formerly NBS) Standard Reference Materials.

    1.5 Neither test method is considered to be adequate for measurement of pH in water whose conductivity is less than about 5 S/cm. Refer to Test Methods D 5128 and D 5464.

    1.6 Precision and bias data were obtained using buffer solutions only. It is the user's responsibility to assure the validity of these test methods for untested types of water.

    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.

    1.7 This test method covers the precise measurement of pH in water under strictly controlled laboratory conditions.

    1.8 This test method is used for the routine measurement of pH in the laboratory and the measurement of pH under various process conditions.

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

    Committee D 19
    Document Type Test Method
    Product Note Reconfirmed 2005
    Publisher American Society for Testing and Materials
    Status Superseded
    Superseded By
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

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