Qualitative methods are detailed for the analysis of polymeric carbon, polyamide 4,6, phenol-formaldehyde resin, oxidized polyacrylonitrile, poly(p-phenylene-1,3,4-oxadiazole), and polymeric fibers used in the textile industry. Rapid test methods include density, staining, solubility, and dry distillation. Instrumental analysis includes infrared spectroscopy, nuclear magnetic resonance, and differential thermal analysis.