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  • BS 3900-B4:1986

    Current The latest, up-to-date edition.

    Methods of test for paints. Tests involving chemical examination of liquid paints and dried paint films Determination of total lead in paints and similar materials

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  31-01-1986

    Publisher:  British Standards Institution

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

    National foreword
    1 Scope and field of application
    2 References
    3 Principle
    4 Dry ashing method
    5 Wet oxidation method
    6 Determination
    7 Expression of results
    8 Test report
    Publications referred to

    Abstract - (Show below) - (Hide below)

    Two procedures: a dry ashing method and a wet oxidation method, to extract the lead from the paint, before determining the lead by a flame atomic absorption spectrometric method.

    Scope - (Show below) - (Hide below)

    This International Standard describes a flame atomic absorption spectrometric method for the determination of total lead in paints and related products.

    The method is applicable to products having total lead contents in the range of about 0,01 to 2 % (m/m).

    NOTE This method may also be applicable to products with a total lead content of more than 2 % (m/m), but it should only be used when the precision does not exceed the appropriate values given in 7.2.

    Two methods are given for the treatment of the test portion; the dry ashing method (clause 4) should be used as the referee method in cases of dispute.

    For the determination of lead in the test solution, the dithizone spectrophotometric method specified in ISO 3856/1 may be used as an alternative method.

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

    Committee STI/10
    Development Note Also numbered as ISO 6503. Supersedes 79/55200 DC and BS 3900-B4(1967). (07/2005) Reviewed and confirmed by BSI, April 2013. (03/2013)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

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

    ISO 1512:1991 Paints and varnishes Sampling of products in liquid or paste form
    BS 3978:1966 Specification for water for laboratory use
    ISO 1042:1998 Laboratory glassware One-mark volumetric flasks
    ISO 3851:1977 Capsulated dental silicate and silico-phosphate filling materials
    BS 3900:GENINTRO(1969) : LATEST METHODS OF TEST FOR PAINTS - GENERAL INTRODUCTION
    BS 3900-A1:1970 Methods of test for paints. Tests on liquid paints (excluding chemical tests) Sampling
    BS 846:1985 Specification for burettes
    ISO 5725:1986 Precision of test methods Determination of repeatability and reproducibility for a standard test method by inter-laboratory tests
    ISO 3696:1987 Water for analytical laboratory use — Specification and test methods
    ISO 1513:2010 Paints and varnishes Examination and preparation of test samples
    ISO 3856-1:1984 Paints and varnishes — Determination of "soluble" metal content — Part 1: Determination of lead content — Flame atomic absorption spectrometric method and dithizone spectrophotometric method
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