{"id":54075,"date":"2024-10-17T09:31:19","date_gmt":"2024-10-17T09:31:19","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-c791-2\/"},"modified":"2024-10-24T17:00:35","modified_gmt":"2024-10-24T17:00:35","slug":"astm-c791-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-c791-2\/","title":{"rendered":"ASTM-C791"},"content":{"rendered":"

ASTM C791-11<\/h3>\n

Historical Standard: Standard Test Methods for Chemical, Mass Spectrometric, and Spectrochemical Analysis of Nuclear-Grade Boron Carbide<\/h4>\n
\n

ASTM C791<\/h4>\n

Scope<\/strong><\/p>\n

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

7.1 This method covers the determination of total carbon in nuclear-grade boron carbide in either powder or pellet form.<\/p>\n

17.1 This method covers the determination of total boron in samples of boron carbide powder and pellets by titrimetry and ICP OES. The recommended amount of boron for each titration is 100 \u00b1<\/span> 10 mg.<\/p>\n

28.1 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

33.1 This method covers the separation of up to 100 \u03bc<\/span>g of halides per gram of boron carbide. The separated halides are measured using other methods found in this standard. It also covers the sample preparation for the determination of isotopic composition by ICP MS.    <\/p>\n

41.1 This method covers the measurement of chloride after separation from boron carbide by pyrohydrolysis. The lower limit of the method is about 2 \u03bc<\/span>g of chloride per titration.<\/p>\n

50.1 This method covers the measurement of chloride and fluoride after separation from boron carbide by pyrohydrolysis. The limit of detection for chloride and fluoride in the boron carbide sample is 3 mg\/kg and 2 mg\/kg, respectively.    <\/p>\n

60.1 This method covers the determination of water in boron carbide in either powder or pellet form. The lower limit of the method is 5 \u03bc<\/span>g of water. The lower limit of the weight loss on drying method is 20 mg\/kg for a sample mass of 5 g.<\/p>\n

65.1 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

80.1 This method covers the determination of free carbon (also called soluble carbon) in boron carbide powders and shaped or sintered bodies of boron carbide after crushing. This method is applicable to mass fractions of free carbon of 0.01 % to 10 %.<\/p>\n

Keywords<\/strong><\/p>\n

Boron carbide (nuclear grade); Carbon content–nuclear materials; Chloride analysis–nuclear applications; Fluoride content; Isotopic analysis; Mass spectrometry–nuclear materials\/applications; Spectrochemical analysis; Trace elements–nuclear materials; Trace elements–spectrochemical analysis; Water content<\/p>\n

ICS Code<\/strong><\/p>\n

ICS Number Code 27.120.30 (Fissile materials and nuclear fuel technology)<\/p>\n

DOI:<\/strong> 10.1520\/C0791-11<\/p>\n<\/div>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nScope
Referenced Documents
Significance and Use
Reagents
Safety Precautions
Sampling <\/td>\n<\/tr>\n
2<\/td>\nScope
Summary of Test Method
Interferences
Apparatus
Reagents
Sampling and Sample Preparation
Calibration
Procedure <\/td>\n<\/tr>\n
3<\/td>\nCalculation
(
)
Scope
Summary of Method
Interferences
Apparatus <\/td>\n<\/tr>\n
4<\/td>\nReagents
Precautions
Sampling and Sample Preparation
Procedure <\/td>\n<\/tr>\n
5<\/td>\nTitrimetric Determination of Boron <\/td>\n<\/tr>\n
6<\/td>\nICP OES <\/td>\n<\/tr>\n
7<\/td>\nPrecision and Bias
Scope
Summary of Method
Interferences
Isotopic Composition by TIMS <\/td>\n<\/tr>\n
8<\/td>\nIsotopic Composition by ICP MS <\/td>\n<\/tr>\n
9<\/td>\nScope
Summary of Method
Interferences
Apparatus
Reagents
Precautions
Procedure <\/td>\n<\/tr>\n
10<\/td>\nPyrohydrolysis as Sample Preparation Procedure for Isotipic Composition by ICP MS
Scope
Summary of Method <\/td>\n<\/tr>\n
11<\/td>\nInterferences
Apparatus
Reagents
Calibration of Titrator
Procedure
Calculation
Precision and Accuracy
Scope
Summary of Method
Interferences <\/td>\n<\/tr>\n
12<\/td>\nApparatus
Reagents
Calibration of Electrode
Procedure
Calculation
Precision and Accuracy
Preface <\/td>\n<\/tr>\n
13<\/td>\nScope
Water by Constant-Voltage Coulometry <\/td>\n<\/tr>\n
14<\/td>\nWeight Loss on Drying Method
DCArc OES Method <\/td>\n<\/tr>\n
16<\/td>\nWet Chemical Methods <\/td>\n<\/tr>\n
17<\/td>\nScope
Summary of Method
Interferences
Apparatus <\/td>\n<\/tr>\n
18<\/td>\nReagents
Precautions
Standardization of Titrant
Blank
Sample Preparation
Procedure <\/td>\n<\/tr>\n
19<\/td>\nCalculation
Procedure
Calculation
Precision and Bias <\/td>\n<\/tr>\n
20<\/td>\nDetermination of Soluble Boron by ICP OES
Scope
Summary of Method
Interferences
Apparatus <\/td>\n<\/tr>\n
21<\/td>\nReagents
Sample Preparation
Calibration
Procedure
Calculation of Free Carbon Content <\/td>\n<\/tr>\n
22<\/td>\nPrecision and Bias
REFERENCES <\/td>\n<\/tr>\n
23<\/td>\nTABLE 1
FIG. 1
FIG. 2 <\/td>\n<\/tr>\n
24<\/td>\nFIG. 3 <\/td>\n<\/tr>\n
25<\/td>\nFIG. 4 <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

C791-11 Standard Test Methods for Chemical, Mass Spectrometric, and Spectrochemical Analysis of Nuclear-Grade Boron Carbide<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2011<\/td>\n25<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":54076,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[464,2637],"product_tag":[],"class_list":{"0":"post-54075","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\/54075","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\/54076"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=54075"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=54075"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=54075"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}