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ASTM D513-16

contributor authorASTM - ASTM International
date accessioned2025-09-30T17:58:16Z
date available2025-09-30T17:58:16Z
date copyright2024
date issued2024
identifier otherd0513-16r24.pdf
identifier urihttps://yse.yabesh.ir/std/handle/yse/340630
description abstract4.1 Carbon dioxide is a respiration product of plants and animals and a decomposition product of organic matter and certain minerals. The atmosphere averages about 0.04 vol % of CO2. Surface waters generally contain less than 10 mg/L, except at local points of abnormal organic or mineral decomposition; however, underground water, particularly deep waters, may contain several hundred mg/L. 4.2 When dissolved in water, CO2 contributes significantly to corrosion of water-handling systems. This is particularly troublesome in steam condensate systems. Loss of CO2 from an aqueous system can disturb the carbonate equilibrium and result in calcite encrustation of confining surfaces. Scaling of water heaters is a good example. Because of the delicate balance between corrosion and encrustation tendencies, much care must be given to control of CO2 and related species in water systems. Recarbonation of municipal supplies during final stages of softening and amine neutralization of steam condensate are applied for these purposes.
languageEnglish
titleStandard Test Methods for Total and Dissolved Carbon Dioxide in Wateren
titleASTM D513-16num
typestandard
statusActive
treeASTM - ASTM International:;2024
contenttypefulltext
scope1.1 These test methods cover the measurement of total or dissolved carbon dioxide present as carbon dioxide (CO2), carbonic acid, bicarbonate ion, and carbonate ion in water:   Range Sections Test Method A (Gas Sensing Electrode) 2 mg/L to 800 mg/L 8 to 15 Test Method B (CO2 Evolution, Coulometric Titration) 5 mg/L to 800 mg/L 16 to 24 1.2 Carbon dioxide may also be detected from carbonates present in particulates in samples. 1.3 Test Method A is applicable to various natural waters and brines. 1.4 Test Method B is applicable to natural waters, brines, and various industrial waters as delineated in 16.4. 1.5 It is the user's responsibility to ensure the validity of these test methods on waters of untested matrices. 1.6 Several test methods were discontinued from this standard in 1988. Refer to Appendix X1 for historical information. 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.
identifier DOI10.1520/D0513-16R24


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