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Chapter <41> Balances

Type of Posting: Notice of Intent to Revise

Posting Date: 25–Oct–2013

Targeted Official Date: Interim Revision Announcement; 01–Jul–2014

Expert Committee: General Chapters—Physical Analysis

In accordance with section 7.05(c) of the 2010–2015 Rules and Procedures of the Council of Experts, this is to provide notice that the USP General Chapters—Physical Analysis Expert Committee intends to revise General Chapter <41> Balances to correct a problem detected with the Repeatability test.

It is proposed to revise the Repeatability test as follows:

“Repeatability is satisfactory if two times the standard deviation of the weighed value, divided by the nominal value of the weight used the desired smallest net weight, does not exceed 0.10 %”

It is anticipated that the revision will be published as a Proposed Interim Revision Announcement in PF 40(1) [Jan.–Feb. 2014] pursuant to section 7.02 of the Rules and Procedures.

Should you have any questions, please contact Horacio Pappa, Ph.D. (301-816-8319,