ICH Guidelines for Exposure to 3 Solvents
FDA has posted a draft International Conference for Harmonization (ICH) guideline, Recommendations for the Permitted Daily Exposures for Three Solvents — 2-Methyltetrahydrofuran, Cyclopentyl Methyl Ether, and Tert-Butyl Alcohol — According to the Maintenance Procedures for the Guidance of Q3C Impurities: Residual Solvents. The agency says the draft was published in the original ICH format and will be put into the FDA guidance format when it is finalized.