ASTM D8083-16(2023)
Standard Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection

Standard No.

ASTM D8083-16(2023)

Release Date

2023

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D8083-16(2023)

Scope

1.1 This test method covers the determination of total nitrogen (TN) and total dissolved nitrogen (TDN) in surface water, seawater, groundwater, wastewater, and wastewater effluents in the range from 0.2 mg ⁄L N to 10 mg ⁄L N. Concentrations from 10 mg ⁄L to 500 mg ⁄L are possible when used in conjunction with manual or automatic dilution, or automatic injection of less sample volume. The EPA 40 CFR Part 136 Appendix B Method Detection Limit (MDL) is 0.05 mg ⁄L N. Higher concentrations may be determined by sample dilution. Lower concentrations may be possible by injecting larger sample volumes. Follow the manufacturer’s instructions. 1.2 The sample is injected onto a platinum catalyst heated at ≥720 °C. The sample converts into a gaseous phase and is forced through a layer of catalyst ensuring conversion of all nitrogen containing compounds to nitrogen oxide (NO). Reaction with ozone converts the NO to an exited NO2. As the excited NO2 returns to the ground state, it emits radiation that is measured photo-electrically. 1.3 Total and dissolved organic carbon analysis by Test Method D7573 can be analyzed at the same time on the same sample simultaneously using a properly equipped analyzer. (See Appendix X1 for an example of simultaneous TOC data.) 1.4 This test method quantitatively recovers nitrogen from a large range of organic and inorganic nitrogen compounds (see Table 1 and Table 2). The test method does not measure nitrogen gas (N2). It is the user’s responsibility to ensure the validity of this test method for waters of untested matrices. 1.5 This test method is applicable only to nitrogenous matter in the sample that can be introduced into the reaction zone. The syringe needle or injector opening size generally limits the maximum size of particles that can be so introduced. Optional automatic sample homogenization may be used. 1.6 This test method is performance based. You may make modifications that improve the test method’s performance but do not change the oxidation or detection technique. 1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.8 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.9 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D8083-16(2023) Referenced Document

• ASTM D1129 Standard Terminology Relating to Water
• ASTM D1193 Standard Specification for Reagent Water
• ASTM D1426 Standard Test Methods for Ammonia Nitrogen In Water
• ASTM D2777 Standard Practice for Determination of Precision and Bias of Applicable Methods of Committee D-19 on Water
• ASTM D3370 Standard Practices for Sampling Water from Closed Conduits
• ASTM D3590 Standard Test Methods for Total Kjeldahl Nitrogen in Water
• ASTM D3867 Standard Test Methods for Nitrite-Nitrate in Water
• ASTM D4327 Standard Test Method for Anions in Water by Chemically Suppressed Ion Chromatography
• ASTM D4448 Standard Guide for Sampling Ground-Water Monitoring Wells
• ASTM D5847 Standard Practice for Writing Quality Control Specifications for Standard Test Methods for Water Analysis
• ASTM D6089 Standard Guide for Documenting a Ground-Water Sampling Event
• ASTM D6538 Standard Guide for Sampling Wastewater With Automatic Samplers
• ASTM D6759 Standard Practice for Sampling Liquids Using Grab and Discrete Depth Samplers*， 2024-04-21 Update
• ASTM D6919 Standard Test Method for Determination of Dissolved Alkali and Alkaline Earth Cations and Ammonium in Water and Wastewater by Ion Chromatography
• ASTM D7573 Standard Test Method for Total Carbon and Organic Carbon in Water by High Temperature Catalytic Combustion and Infrared Detection
• ASTM D7781 Standard Test Method for Nitrite-Nitrate in Water by Nitrate Reductase*， 2023-04-01 Update

ASTM D8083-16(2023) history

• 2023 ASTM D8083-16(2023) Standard Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection
• 2016 ASTM D8083-16 Standard Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection