ASTM D 1426 Standard Test Methods for Ammonia Nitrogen in Water
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ASTM D 1426 Document Information:
Title
Standard Test Methods for Ammonia Nitrogen in Water
ASTM International
Publication Date:
Jun 10, 2003
Scope:
These test methods cover the determination of ammonia nitrogen,
exclusive of organic nitrogen, in
water. Two test methods are included as follows:
Test Method A is used for the routine determination of ammonia in
steam condensates and
demineralizer effluents.
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.
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.
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.
The distillation method now appears as Appendix X1 and is provided as
nonmandatory information
only. The automated colorimetric phenate method has been discontinued.
Keywords:
- ammonia
- analysis
- calorimetric
- electrode
- water
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