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  • BS ISO 14849:1999

    Current The latest, up-to-date edition.

    Plastics. Phenol-formaldehyde mouldings. Determination of free ammonia and ammonium compounds. Indophenol method

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  15-11-1999

    Publisher:  British Standards Institution

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

    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Principle
    5 Reagents
    6 Apparatus
    7 Preparation of test sample
    8 Procedure
    9 Expression of results
    10 Precision
    11 Test report

    Abstract - (Show below) - (Hide below)

    Defines a colorimetric comparison method for determining the amount of ammonium compounds and ammonia in phenol-formaldehyde mouldings.

    Scope - (Show below) - (Hide below)

    This International Standard specifies a colorimetric comparison method for the determination of the amount of ammonia and ammonium compounds in phenol-formaldehyde mouldings.

    NOTE This International Standard does not provide an absolute measure of the amount of ammonia present.

    The amount of ammonia in a moulded article is of importance when corrosion of metal inserts or contamination of foodstuffs in contact with the article has to be considered.

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

    Committee PRI/21
    Development Note Supersedes 97/121691 DC (03/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

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

    ISO 4793:1980 Laboratory sintered (fritted) filters — Porosity grading, classification and designation
    ISO 1042:1998 Laboratory glassware One-mark volumetric flasks
    ISO 648:2008 Laboratory glassware — Single-volume pipettes
    ISO 565:1990 Test sieves — Metal wire cloth, perforated metal plate and electroformed sheet — Nominal sizes of openings
    ISO 4788:2005 Laboratory glassware Graduated measuring cylinders
    ISO 835-2:1981 Laboratory glassware Graduated pipettes Part 2: Pipettes for which no waiting time is specified
    ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
    ISO 3696:1987 Water for analytical laboratory use — Specification and test methods
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