Standard Test Methods for Chemical, Mass Spectrometric, and Spectrochemical Analysis of Nuclear-Grade Boron Carbide

Importancia y uso:

4.1 Boron carbide is used as a control material in nuclear reactors. In order to be suitable for this purpose, the material must meet certain criteria for assay, isotopic composition, and impurity content. These methods are designed to show whether or not a given material meets the specifications for these items as described in Specifications C750 and C751.

4.1.1 An assay is performed to determine whether the material has the specified boron and carbon content.

4.1.2 Determination of the isotopic content of the boron and the free carbon content is made to establish whether the content is in compliance with the purchaser’s specifications.

4.1.3 Impurity content is determined to ensure that the maximum content limit of certain impurities (chloride, fluoride, water, metallic impurities, soluble boron) is not exceeded.

Subcomité:

C26.03

Referida por:

C0751-24, C1671-20A, C0809-24, C0750-24

Volúmen:

12.01

Número ICS:

27.120.30 (Fissile materials and nuclear fuel technology)

Palabras clave:

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;