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发表于 2013-3-25 17:05:27
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The USP Expert Committee on Elemental Impurities has revised General Chapters <232> Elemental Impurities – Limits and <233> Elemental Impurities – Procedures to address the comments received, and has forwarded the revised General Chapters to the General Chapters—Chemical Analysis Expert Committee for approval. The Expert Committee approved these General Chapters for publication in Second Supplement to USP 35–NF 30 (official Dec 1, 2012). These General Chapters will be implemented through a provision in the General Notices making them applicable to all articles in the compendia as was done with general chapter <467> Residual Solvents in Section 5.60.20 of the General Notices. The provision in the General Notices making <232> and <233> applicable to all USP–NF articles will be part of a General Notices revision that is scheduled to appear in USP 37–NF 32 with an official date of May 1, 2014. Thus, while <232> and <233> will be official on December 2, 2012, the date on which conformance with these chapters will be required will be May 1, 2014, when the General Notices provision making them applicable becomes official.
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