1.1 This practice covers primarily the terms and relationships used in gas elution chromatography. However, most of the terms should also apply to other kinds of gas chromatography and are also valid in the various liquid column chromatographic techniq This practice presents the terms, parameters, symbols, units, and relationships used in gas elution chromatography. Most of the terms described herein should also apply to other kinds of gas chromatography and various liquid column chromatographic tech