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เอกสารมาตรฐาน
สหรัฐอเมริกา
ASTM
D6501-15
Standard Test Method for Phosphonate in Brines
2015
11
ASTM Vol.11.01 (2023)
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. 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...