2.25 Abbreviations

CGM

Calibration Gas Mixture

EUT

Equipment Under Test

IEC

International Electrotechnical Commission

ISO

International Organization for Standardization

MPE

Maximum Permissible Error

ppm

part per million (e.g. 1 cm3/1 m3) (ISO 80000-9:20092), SI 8th Edition:2006, 5.3.7)