Ardrox® NQ1 is a Form d and Form e non-aqueous developer. It is a liquid product consisting of a finely divided powder dispersed in a non-halogenated volatile solvent system. Ardrox® NQ1 is used with Type I and Type II penetrants. Thoroughly mix Ardrox® NQ1 before and during use. The liquid is a suspension of a finely divided powder suspended in a solvent and the powder settles out during storage and while in use, unless continually agitated.