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.<\/p>\n
1.2 The analytical procedures appear in the following order:<\/p>\n
1.3 This method covers the determination of total carbon in nuclear-grade, boron carbide in either powder or pellet form.<\/p>\n
1.4 This method covers the determination of total boron in samples of boron carbide powder and pellets. The recommended amount of boron for each titration is 100 10 mg.<\/p>\n
1.5 This method covers the determination of the isotopic composition of boron in nuclear-grade boron carbide, in powder and pellet form, containing natural to highly enriched boron.<\/p>\n
1.6 This method covers the separation of up to 100 g of halides per gram of boron carbide. The separated halides are measured using other methods found in this standard.<\/p>\n
1.7 This method covers the measurement of chloride after separation from boron carbide by pyrohydrolysis. The lower limit of the method is about 2 g of chloride per titration.<\/p>\n
1.8 This method covers the measurement of fluoride after separation from boron carbide by pyrohydrolysis. The lower limit of the method is about 2 g of fluoride per measurement.<\/p>\n
1.9 This method covers the determination of water in boron carbide in either powder or pellet form. The lower limit of the method is 5 g of water.<\/p>\n
1.10 This method covers the determination of 14 impurity elements in boron carbide in either powder or pellet form.<\/p>\n
1.11 This method covers the determination of soluble boron in boron carbide. Soluble boron is defined as that boron dissolved under the conditions of the test.<\/p>\n
1.12 This method covers the determination of soluble carbon in boron carbide. The lower limit of the method is 0.02 % with a 100-mg sample. Soluble carbon is defined as that carbon oxidized by the sodium dichromate-sulfuric acid solution under the conditions of this method.<\/p>\n
1.13 This method is applicable to the determination of metallic impurities in samples of boron carbide powder and pellets. From 20 to 5000 g of many of the impurities per gram of sample can be determined.<\/p>\n
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C791-83(2000) Standard Test Methods for Chemical, Mass Spectrometric, and Spectrochemical Analysis of Nuclear-Grade Boron Carbide<\/b><\/p>\n\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n ASTM<\/b><\/a><\/td>\n 2000<\/td>\n 4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":40823,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[464,2637],"product_tag":[],"class_list":{"0":"post-40822","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-27-120-30","7":"product_cat-astm","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/40822","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/40823"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=40822"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=40822"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=40822"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}