ASTM International

Standard Test Method for Hydrazine in Water
 N D1385

Annotation

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 g/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.

It is the users' responsibility to ensure the validity of this test method for untested types of waters.

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

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 precautionary statements, Note 1, and Footnote 8.

2 For further information on this test method, the following references may be of interest: Watt, G. W., and Chrisp, J. D., "Spectrophotometric Method for the Determination of Hydrazine," Analytical Chemistry, Vol 24, No. 12, 1952, pp. 2006–2008, andWood, P. R., "Determination of Maleic Hydrazide Residues in Plant and Animal Tissue," Analytical Chemistry, Vol 25, No. 12, 1953, pp. 1879–1883.

Автоматический перевод:

Метод стандартной пробы для гидразина в воде