# ISO 16664:2004 — Withdrawn and superseded ISO standards For ISO 16664:2004, item title is Gas analysis — Handling of calibration gases and gas mixtures — Guidelines; status code is 9599; successor is ISO 16664:2017; withdrawn / published date is 2004-07-08, recorded from its source on 2026-08-05. - **Identifier:** ISO 16664:2004 _(verified: appears in the quote below)_ - **Item title:** Gas analysis — Handling of calibration gases and gas mixtures — Guidelines _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 16664:2017 - **Withdrawn / published date:** 2004-07-08 _(verified: appears in the quote below)_ ## What the source says > 30417,IS,,ISO 16664:2004,Gas analysis — Handling of calibration gases and gas mixtures — Guidelines,Analyse des gaz — Manutention des gaz et des mélanges de gaz pour étalonnage — Lignes directrices,2004-07-08,1,['71.040.40'],ISO/TC 158,9599,,[70554],"['en','fr']",17,"

ISO 16664:2004 describes factors that may influence the composition of pure gases and homogeneous gas mixtures used for calibration purposes. ISO 16664:2004 only applies to gases or gas mixtures that are within the 'utilization period', and it pays special attention to