{"id":318632,"date":"2024-10-19T22:00:39","date_gmt":"2024-10-19T22:00:39","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-218142019\/"},"modified":"2024-10-25T20:18:32","modified_gmt":"2024-10-25T20:18:32","slug":"bs-iso-218142019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-218142019\/","title":{"rendered":"BS ISO 21814:2019"},"content":{"rendered":"

This document specifies methods for the chemical analysis of fine aluminium nitride powders used as the raw material for fine ceramics.<\/p>\n

This document stipulates the determination methods of the aluminium, total nitrogen, boron, calcium, copper, iron, magnesium, manganese, molybdenum, nickel, potassium, silicon, sodium, titanium, tungsten, vanadium, zinc, zirconium, carbon, chlorine, fluorine, and oxygen contents in aluminium nitride powders. The aluminium content is determined by using either an acid pressure decomposition-CyDTA-zinc back titration method or an acid digestion-inductively coupled plasma-optical emission spectrometry (ICP-OES) method. The total nitrogen content is determined by using an acid pressure decomposition-distillation separation-acidimetric titration method, a direct decomposition-distillation separation-acidimetric titration method, or an inert gas fusion-thermal conductivity method. The boron, calcium, copper, iron, magnesium, manganese, molybdenum, nickel, potassium, silicon, sodium, titanium, tungsten, vanadium and zinc contents are determined by using an acid digestion-ICP-OES method or an acid pressure decomposition-ICP-OES method. The sodium and potassium contents are determined via an acid pressure decomposition-flame emission method or an acid pressure decomposition-atomic absorption spectrometry method. The oxygen content is determined by using an inert gas fusion-IR absorption spectrometry method, while that of carbon is determined via a combustion-IR absorption spectrometry method or a combustion-conductometry method. The chlorine and fluorine contents are determined by using a pyrohydrolysation method followed by ion chromatography or spectrophotometry.<\/p>\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\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nNational foreword <\/td>\n<\/tr>\n
8<\/td>\nForeword <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
10<\/td>\n3 Terms and definitions
4 Analytes and ranges
5 Preparation of the test sample
5.1 General <\/td>\n<\/tr>\n
11<\/td>\n5.2 Sampling
5.3 Drying
5.4 Weighing
6 Reporting the analytical values
6.1 Number of analyses
6.2 Blank test
6.3 Evaluation of the analytical values
6.4 Expression of the analytical values <\/td>\n<\/tr>\n
12<\/td>\n7 Determination of the aluminium content
7.1 Classification of the determination methods
7.2 Acid decomposition-ICP-OES method
7.2.1 Principle
7.2.2 Reagents
7.2.3 Apparatus and instruments <\/td>\n<\/tr>\n
13<\/td>\n7.2.4 Procedure
7.2.5 Blank test
7.2.6 Drawing of the calibration curve
7.2.7 Calculation
7.3 Acid pressure decomposition-CyDTA-zinc back titration method
7.3.1 Principle <\/td>\n<\/tr>\n
14<\/td>\n7.3.2 Reagents
7.3.3 Apparatus and instruments <\/td>\n<\/tr>\n
16<\/td>\n7.3.4 Procedure
7.3.5 Blank test
7.3.6 Calculation
8 Determination of the total nitrogen content
8.1 Classification of the determination methods <\/td>\n<\/tr>\n
17<\/td>\n8.2 Acid pressure decomposition-distillation separation-acidimetric titration method
8.2.1 Principle
8.2.2 Reagents <\/td>\n<\/tr>\n
18<\/td>\n8.2.3 Apparatus <\/td>\n<\/tr>\n
19<\/td>\n8.2.4 Procedure
8.2.5 Recovery measurement <\/td>\n<\/tr>\n
20<\/td>\n8.2.6 Calculation
8.3 Direct decomposition-distillation separation-acidimetric titration method
8.3.1 Principle
8.3.2 Reagents
8.3.3 Apparatus
8.3.4 Procedure
8.3.5 Recovery measurement
8.3.6 Calculation <\/td>\n<\/tr>\n
21<\/td>\n8.4 Inert gas fusion-thermal conductivity method
8.4.1 Principle
8.4.2 Reagents
8.4.3 Apparatus <\/td>\n<\/tr>\n
22<\/td>\n8.4.4 Instrument <\/td>\n<\/tr>\n
23<\/td>\n8.4.5 Procedure
8.4.6 Blank test
8.4.7 Calculation of the calibration coefficient <\/td>\n<\/tr>\n
24<\/td>\n8.4.8 Calculation
9 Determination of the sodium and potassium contents
9.1 Classification of the determination methods
9.2 Acid pressure decomposition-flame emission method
9.2.1 Principle
9.2.2 Reagents <\/td>\n<\/tr>\n
25<\/td>\n9.2.3 Instruments
9.2.4 Procedure
9.2.5 Blank test
9.2.6 Drawing of the calibration curve <\/td>\n<\/tr>\n
26<\/td>\n9.2.7 Calculation
9.3 Acid pressure decomposition-atomic absorption spectrometry method
9.3.1 Principle
9.3.2 Reagents
9.3.3 Instruments
9.3.4 Procedure
9.3.5 Blank test
9.3.6 Drawing of the calibration curve
9.3.7 Calculation <\/td>\n<\/tr>\n
27<\/td>\n10 Determination of the trace element contents
10.1 Classification of the determination methods
10.2 Acid decomposition-ICP-OES method
10.2.1 Principle
10.2.2 Reagents <\/td>\n<\/tr>\n
28<\/td>\n10.2.3 Apparatus and instruments
10.2.4 Procedure
10.2.5 Blank test <\/td>\n<\/tr>\n
29<\/td>\n10.2.6 Drawing of the calibration curve
10.2.7 Calculation
10.3 Acid pressure decomposition-ICP-OES method
10.3.1 General
10.3.2 Reagents
10.3.3 Apparatus and instruments
10.3.4 Procedure
10.3.5 Blank test
10.3.6 Drawing of the calibration curve
10.3.7 Calculation
11 Determination of the oxygen content
11.1 Principle <\/td>\n<\/tr>\n
30<\/td>\n11.2 Reagents
11.3 Apparatus
11.4 Instruments
11.5 Procedure
11.6 Blank test
11.7 Calculation of the calibration coefficient <\/td>\n<\/tr>\n
31<\/td>\n11.8 Calculation
12 Determination of the carbon content
12.1 Classification of the determination methods
12.2 Combustion (resistance furnace)-IR absorption spectrometry
12.2.1 Principle
12.2.2 Reagents
12.2.3 Apparatus <\/td>\n<\/tr>\n
32<\/td>\n12.2.4 Instrument <\/td>\n<\/tr>\n
33<\/td>\n12.2.5 Procedure
12.2.6 Blank test
12.2.7 Calculation of the calibration coefficient <\/td>\n<\/tr>\n
34<\/td>\n12.2.8 Calculation
12.3 Combustion (radio frequency heating furnace)-thermal conductometry
12.3.1 Principle
12.3.2 Reagents
12.3.3 Apparatus
12.3.4 Instrument <\/td>\n<\/tr>\n
35<\/td>\n12.3.5 Procedure <\/td>\n<\/tr>\n
36<\/td>\n12.3.6 Blank test
12.3.7 Calculation of the calibration coefficient
12.3.8 Calculation
12.4 Combustion (radio frequency heating furnace)-IR absorption spectrometry
12.4.1 Principle
12.4.2 Reagents
12.4.3 Apparatus
12.4.4 Instrument <\/td>\n<\/tr>\n
37<\/td>\n12.4.5 Procedure <\/td>\n<\/tr>\n
38<\/td>\n12.4.6 Blank test
12.4.7 Calculation of the calibration coefficient
12.4.8 Calculation
13 Determination of the fluorine and chlorine contents
13.1 Principle
13.2 Reagents
13.2.3 Standard fluoride solution (F 1 mg\/ml).
13.2.8 Acetone.
13.2.9 Mercury (II) thiocyanate solution [0,3 g in 100 ml of 95 % (volume fraction) ethanol].
13.2.10 Ammonium iron (II) sulfate solution [6 g in 100 ml of nitric acid (4+9)]. <\/td>\n<\/tr>\n
39<\/td>\n13.3 Apparatus and instruments
13.3.1 Pyrohydrolysis apparatus. <\/td>\n<\/tr>\n
40<\/td>\n13.4 Procedure
13.4.1 Extraction of fluorine and chlorine from the sample
13.4.2 Determination of the fluorine and chlorine contents
13.5 Blank test <\/td>\n<\/tr>\n
41<\/td>\n13.6 Drawing of the calibration curve
13.7 Calculation
14 Test report <\/td>\n<\/tr>\n
42<\/td>\nAnnex A (informative) Analytical results obtained from the round robin test <\/td>\n<\/tr>\n
43<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Fine ceramics (advanced ceramics, advanced technical ceramics). Methods for chemical analysis of aluminium nitride powders<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2019<\/td>\n44<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":318638,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1164,2641],"product_tag":[],"class_list":{"0":"post-318632","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-81-060-30","7":"product_cat-bsi","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\/318632","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\/318638"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=318632"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=318632"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=318632"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}