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Description of ASTM-D1426 2008ASTM D1426 - 08Standard Test Methods for Ammonia Nitrogen In WaterActive Standard ASTM D1426 | Developed by Subcommittee: D19.05 Book of Standards Volume: 11.01
Translated Standard: Russian ASTM D1426Significance and Use 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 acids, and ammonia. Ammonia is a colorless, gaseous compound with a sharp distinctive odor. It is highly soluble in water where it exists in a molecular form associated with water and in an ionized form as NH 4 + . The extent of association or ionization is dependent on the temperature and pH. It may also be toxic to aquatic life. The extent of toxicity is dependent upon species and extent of dissociation. Ammonia may occur in water as a product of anaerobic decomposition of nitrogen containing compounds or from waste streams containing ammonia. 1. 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:
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 NH 3 N/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. 7.1 This test method is suitable for the rapid routine determination of ammonia nitrogen in steam condensates and demineralized water. See Appendix X1 for the distillation test method. 16.1 This test method is applicable to the measurement of ammonia in reagent and effluent water.
ASTM Standards D1066 Practice for Sampling Steam D1129 Terminology Relating to Water D1192 Guide for Equipment for Sampling Water and Steam in Closed Conduits D1193 Specification for Reagent Water D2777 Practice for Determination of Precision and Bias of Applicable Test Methods of Committee D19 on Water D3370 Practices for Sampling Water from Closed Conduits D5810 Guide for Spiking into Aqueous Samples D5847 Practice for Writing Quality Control Specifications for Standard Test Methods for Water Analysis E60 Practice for Analysis of Metals, Ores, and Related Materials by Spectrophotometry E275 Practice for Describing and Measuring Performance of Ultraviolet and Visible Spectrophotometers Keywords ammonia; analysis; calorimetric; electrode; water; Electrodes; Ferrous-ferric reference solutions; Inorganic compounds--water; Ion selective electrode method; Nitrogen content--water; Ammonia content; Ammonia nitrogen content; Colorimetric analysis--water; Direct nesslerization; ICS Code ICS Number Code 13.060.50 (Examination of water for chemical substances) DOI: 10.1520/D1426-08 ASTM International is a member of CrossRef. ASTM D1426The following editions for this book are also available...This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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