scope:

This Standards Publication is applicable to qualification and testing of calendered aramid papers in thicknesses up to 30 mils (0.76 mm) for use as electrical insulation. Methods and properties applicable to aramid pressboards, uncalendered aramid papers, and papers made of blends of aramid with other materials are substantially different and are not considered in this standard. Blends of aramid and mica are covered in NEMA Standard FI-1. For U.S. Government procurement purposes, this standard replaces Military Standard MIL-I-24204A.