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ASTM
D1358-07(2018)e1
Standard Test Method for Hydrazine in Water
2018
4
ASTM Vol.11.01 (2023)
This test method covers2 the colorimetric determination of hydrazine in boiler feed waters, condensates, natural, and well waters that have been treated with hydrazine (N2H4). This test method is usable in the range from 5.0 to 200 μg/L (ppb) hydrazine. The range is for photometric measurements made at 458 nm in 50 mm cell. Higher concentrations of hydrazine can also be determined by taking a more diluted sample...