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      The GB/T 23979.2-2009 standard is proposed by the China Petroleum and Chemical Industry Association, which stipulates the determination method of whitening intensity and color light of fluorescent whitening agent on paper. The standard is suitable for evaluating the whitening effect and color light change of fluorescent whitening agent by dyeing paper to ensure that the visual effect of paper in practical application meets the requirements.

      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 G55 ICS 87.060.10;71.100.01
      Release Date 2009-06-02 00:00:00 Implementation Date 2010-02-01 00:00:00
      23 in total
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