The United States Pharmacopeia has stated that references to General Chapter <911> "Viscosity" will be changed to General Chapter <911> "Viscosity-Capillary Viscometer Methods," <912> "Rotational Rheometer Methods," or <913> "Rolling Ball Viscometer Method."
The United States Pharmacopeia (USP) has stated that references to General Chapter <911> “Viscosity” will be changed to General Chapter <911> “Viscosity—Capillary Viscometer Methods,” <912> “Rotational Rheometer Methods,” or <913> “Rolling Ball Viscometer Method.” Seventy monographs will be affected.
The changes reflect a modernized General Chapter <911> and two new proposed General Chapters <912> and <913> published in Pharmacopeia Forum37(4) and 37(5) in 2011 and approved by the General Chapters—Physical Analysis Expert Committee.
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The changes will become official Dec. 1, 2012, and will be reflected in the Second Supplement to USP 35–NF 30. A list of impacted monographs can be found on the USP website.
