CATEGORIES

    GB/T 9758.1-1988
    Paints and varnishes--Determination of “Soluble” metal content--Part 1:Determination of lead content--Flame atomic absorption spectrometric method and dithizone spectrophotometric method

    GB/T 9758.1-1988 "Paints and varnishes - Determination of 'soluble' metal content - Part 1: Determination of lead content - Flame atomic absorption spectrometric method and dithizone spectrophotometric method" specifies two methods for determining the "soluble" lead content in paints and varnishes, applicable to various coating products. The flame atomic absorption spectrometric method quantifies lead based on its characteristic absorption peak, while the dithizone spectrophotometric method measures absorbance based on a color-developing reaction. The testing requires equipment such as a flame atomic absorption spectrometer, spectrophotometer, sample digestion apparatus, and analytical balance, providing a standardized approach for the environmental control of lead content in coatings.

    This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
    Status Active
    CCS G50 ICS 87.040
    Release Date 1988-09-05 00:00:00 Implementation Date 1989-04-01 00:00:00

    Categories

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    Extended reading
    GB/T 9758.4-1988《Paints and varnishes--Determination of “soluble” metal content--Part 4:Determination of cadmium content--Flame atomic absorption spectrometric method and polarographic method》

    Active

    GB/T 5211.17-1988《Comparison of contrast ratio(hiding power)of white pigments》

    Active

    GB/T 5211.19-1988《Determination of relative tinting strength and colour on reduction of coloured pigments--Visual comparison method》

    Active

    GB/T 9758.2-1988《Paints and varnishes--Determination of “soluble” metal content--Part 2:Determination of antimony content--Flame atomic absorption spectrometric method and rhodamine B spectrophotometric method》

    Active

    GB/T 9758.6-1988《Paints and varnishes--Determination of “soluble” metal content--Part 6:Determination of total chromium content of the liquid portion of the paint--Flame atomic absorption spectrometric method》

    Active

    GB/T 9758.5-1988《Paints and varnishes--Determination of “soluble” metal content--Part 5:Determination of hexavalent chromium content of the pigment portion of the liquid paint or the paint in powder form--Diphenylcarbazide spectrophotometric method》

    Active

    GB/T 9758.3-1988《Paints and varnishes--Determination of “soluble” metal content--Part 3:Determination of barium content--Flame atomic emission spectrometric method》

    Active

    GB/T 9758.7-1988《Paints and varnishes--Determination of “soluble” metal content--Part 7:Determination of mercury content of the pigment portion of the paint and of the liquid portion of water-dilutable paints--Flameless atomic absorption spectrometric method》

    Active

    GB/T 9760-1988《Paints and varnishes--Preparation of acid extracts from paints in liquid or powder form》

    Active

    GB/T 9273-1988《Print-free test of film》

    Active