4.1 Acidic fluorides are undesirable in SF₆ used as an electrical insulating gas in that they may contribute to corrosion or constitute dielectric hazard.

4.2 This test method is valid for both new and used SF₆. In used SF₆, it will only measure those active species which are hydrolyzable.

1.1 This test method covers the determination of the acidic fluorides of sulfur hexafluoride (SF₆).

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.