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About This Item

 

Full Description

1.1 This test method covers the colorimetric determination of phosphonate (PNA) in brines from gas and oil production operations in the range from 0.1 to 5 mg/L.

1.2 This phosphonate method is intended for use to analyze low concentration of phosphonate in brine containing interfering elements. This test method is most useful for analyzing phosphonate at 0.1 to 1 mg/L range in brines with interfering elements; however, it requires personnel with good analytical skill.

1.3 This test method has been used successfully with reagent water and both field and synthetic brine. It is the user's responsibility to ensure the validity of this test method for waters of untested matrices.

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

1.5 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see 9.1.3.

 

Document History

  1. ASTM D6501-15

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    Standard Test Method for Phosphonate in Brines

    • Most Recent
  2. ASTM D6501-09


    Standard Test Method for Phosphonate in Brines

    • Historical Version
  3. ASTM D6501-04


    Standard Test Method for Phosphonate in Brines

    • Historical Version
  4. ASTM D6501-99


    Standard Test Method for Phosphonate in Brines

    • Historical Version