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ASTM International - ASTM D1426-15

Standard Test Methods for Ammonia Nitrogen In Water

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Organization: ASTM International
Publication Date: 15 March 2015
Status: inactive
Page Count: 9
ICS Code (Examination of water for chemical substances): 13.060.50
significance And Use:

4.1 Nitrogen is a nutrient in the environment and is necessary to sustain growth of most organisms. It exists in several forms such as nitrate, nitrite, organic nitrogen such as proteins or amino... View More

scope:

1.1 These test methods cover the determination of ammonia nitrogen, exclusive of organic nitrogen, in water. Two test methods are included as follows:

  Sections
 Test Method A-Direct Nesslerization 7 - 16
 Test Method B-Ion Selective Electrode 17 - 24

1.2 Test Method A is used for the routine determination of ammonia in steam condensates and demineralizer effluents.

1.3 Test Method B is applicable to the determination of ammonia nitrogen in the range from 0.5 to 1000 mg NH3N/L directly in reagent and effluent waters. Higher concentrations can be determined following dilution. The reported lower range is based on multiple-operator precision. Lower limits have been obtained by two of the twelve laboratories participating in the round robin.

1.4 Both test methods A and B are applicable to surface and industrial waters and wastewaters following distillation. The test method for distillation given in Appendix X1 has been used in the past to meet requirements for predistillation of samples being analyzed for ammonia.

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

1.6 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.

1.7 The distillation method now appears as Appendix X1 and is provided as nonmandatory information only. The automated colorimetric phenate method has been discontinued.

Document History

November 1, 2021
Standard Test Methods for Ammonia Nitrogen In Water
1.1 These test methods cover the determination of ammonia nitrogen, exclusive of organic nitrogen, in water. Two test methods are included as follows: Sections    Test Method A-Direct Nesslerization...
ASTM D1426-15
March 15, 2015
Standard Test Methods for Ammonia Nitrogen In Water
1.1 These test methods cover the determination of ammonia nitrogen, exclusive of organic nitrogen, in water. Two test methods are included as follows:   Sections  Test Method A—Direct...
August 15, 2008
Standard Test Methods for Ammonia Nitrogen In Water
1.1 These test methods cover the determination of ammonia nitrogen, exclusive of organic nitrogen, in water. Two test methods are included as follows: Sections Test Method A—Direct Nesslerization 7...
June 10, 2003
Standard Test Methods for Ammonia Nitrogen In Water
1.1 These test methods cover the determination of ammonia nitrogen, exclusive of organic nitrogen, in water. Two test methods are included as follows: Sections Test Method A—Direct Nesslerization 7...
December 10, 1998
Standard Test Methods for Ammonia Nitrogen In Water
1.1 These test methods cover the determination of ammonia nitrogen, exclusive of organic nitrogen, in water. Two test methods are included as follows: Section Test Method A-Direct Nesslerization 7 to...
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