General Chapter <643> Total Organic Carbon Comment Period Extension

Due to user inquiries, USP is extending the comment deadline for General Chapter <643> Total Organic Carbon by 60 days to December 15, 2007. The purpose of this extension is to allow interested parties ample time to comment on the proposed changes which have appeared in Pharmacopeial Forum 33(4). Any revisions to the chapter will be considered for inclusion in the Second Supplement to USP 31–NF 26.

Please contact Gary Ritchie, M.S. ( or 301–816–8353) if you have questions.

Proposed General Chapter <643> Total Organic Carbon.  (71KB)