ASTM D7573-09(2017)
Standard Test Method for Total Carbon and Organic Carbon in Water by High Temperature Catalytic Combustion and Infrared Detection
- Standard No.
- ASTM D7573-09(2017)
- Release Date
- 2017
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM D7573-18
- Latest
- ASTM D7573-18ae1
- Scope
- 1.1 This test method covers the determination of total carbon (TC), inorganic carbon (IC), total organic carbon (TOC), dissolved organic carbon (DOC), and non-purgable organic carbon (NPOC) in water, wastewater, and seawater in the range from 0.5 mg/L to 4000 mg/L of carbon. Higher levels may be determined by sample dilution. The sample is injected onto a quartz bed heated at 680ºC. The sample converts into a gaseous phase and forced through a layer of catalyst ensuring conversion of all carbon containing compounds to CO2. A non-dispersive infrared (NDIR) detector measures the resulting CO2. 1.2 For TOC and DOC analysis a portion of the sample is injected to determine TC or dissolved carbon (DC). A portion of the sample is then acidified and purged to remove the IC. The purged inorganic carbon is measured as TIC, or DIC. TOC or DOC is calculated by subtracting the inorganic fraction from the total carbon: TOC 5 TC 2 IC 1.3 For NPOC analysis a portion of sample is acidified and purged to remove IC. The purged sample is then injected to determine NPOC. 1.4 This test method was used successfully with reagent water spiked with potassium hydrogen phthalate, sucrose, nicotinic acid, benzoquinone, sodium dodecyl benzene sulfonate, urea, acetic acid, and humic acid. 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 carbonaceous 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. 1.6 In addition to laboratory analyses, this test method may be applied to stream monitoring. 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 and health practices and determine the applicability of regulatory limitations prior to use.
ASTM D7573-09(2017) Referenced Document
- ASTM D1129 Standard Terminology Relating to Water
- ASTM D1192 Standard Guide for Equipment for Sampling Water and Steam in Closed Conduits
- ASTM D1193 Standard Specification for Reagent 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 D4129 Standard Test Method for Total and Organic Carbon in Water by High Temperature Oxidation and by Coulometric Detection
- ASTM D5847 Standard Practice for Writing Quality Control Specifications for Standard Test Methods for Water Analysis
ASTM D7573-09(2017) history
- 2018 ASTM D7573-18ae1 Standard Test Method for Total Carbon and Organic Carbon in Water by High Temperature Catalytic Combustion and Infrared Detection
- 2018 ASTM D7573-18a Standard Test Method for Total Carbon and Organic Carbon in Water by High Temperature Catalytic Combustion and Infrared Detection
- 2018 ASTM D7573-18 Standard Test Method for Total Carbon and Organic Carbon in Water by High Temperature Catalytic Combustion and Infrared Detection
- 2017 ASTM D7573-09(2017) Standard Test Method for Total Carbon and Organic Carbon in Water by High Temperature Catalytic Combustion and Infrared Detection
- 2009 ASTM D7573-09 Standard Test Method for Total Carbon and Organic Carbon in Water by High Temperature Catalytic Combustion and Infrared Detection
