significance And Use:

scope:

1.1 This test method covers the determination of total mercury in gaseous fuels at concentrations down to 0.001?μg m^-3. It includes procedures for obtaining a representative sample and for the determination of Hg using gold amalgamation-atomic fluorescence spectrometry (AFS). The procedure detects all forms of mercury including elemental, inorganic and organic mercury and therefore reports total gaseous mercury.

1.2 The values stated in SI units are to be regarded as standard.

1.3 Warning: Mercury has been designated by many regulatory agencies as a hazardous material that can cause serious medical issues. Mercury, or its vapor, has been demonstrated to be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury containing products. See the applicable product Safety Data Sheet for additional information. Users should be aware that selling mercury and/or mercury containing products into their state or country may be prohibited by law.

1.4 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 its use.

1.5 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.