ASTM C0791-24 - Standard Test Methods for Chemical, Mass Spectrometric, and Spectrochemical Analysis of Nuclear-Grade Boron Carbide
Standard Test Methods for Chemical, Mass Spectrometric, and Spectrochemical Analysis of Nuclear-Grade Boron Carbide
| Standard number: | ASTM C0791-24 |
| Released: | 01.07.2024 |
| Status: | Active |
| Pages: | 29 |
| Section: | 12.01 |
| Keywords: | analytical methods; boron carbide; chloride; combustion analysis; constant-current coulometry; constant-voltage coulometry; coulometry; DCArc-OES; fluoride; free carbon; ICP-OES; ICP-MS; inductive furnace; infrared absorption; ion-selective electrode; isotopic composition; mannitoboric-acid procedure; mass spectrometry; metallic impurities; pyrohydrolysis; soluble boron; TIMS; titrimetry; total boron; total carbon; water content; weight loss on drying; |
1.1 These test methods cover procedures for the chemical, mass spectrometric, and spectrochemical analysis of nuclear-grade boron carbide powder and pellets to determine compliance with specifications.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 The analytical procedures appear in the following order:
|
| Sections |
| Total Carbon by Combustion in an Inductive Furnace and | 8 – 17 |
| Total Boron by Titrimetry and ICP-OES | 18 – 28 |
| Isotopic Composition by Mass Spectrometry | 29 – 33 |
| Pyrohydrolysis | 34 – 41 |
| Chloride by Constant-Current Coulometry | 42 – 50 |
| Chloride and Fluoride by Ion-Selective Electrode | 51 – 59 |
| Water by Constant-Voltage Coulometry and Weight Loss on | 60 – 63 |
| Metallic Impurities by DCArc-OES and wet chemical methods | 64 and 65 |
| Soluble Boron by Titrimetry and ICP-OES | 66 – 80 |
| Free Carbon by a Coulometric Method | 81 – 90 |
1.4 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.
1.5 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.