{"id":318334,"date":"2024-10-19T21:59:07","date_gmt":"2024-10-19T21:59:07","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-126772011\/"},"modified":"2024-10-25T20:16:35","modified_gmt":"2024-10-25T20:16:35","slug":"bs-en-iso-126772011","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-126772011\/","title":{"rendered":"BS EN ISO 12677:2011"},"content":{"rendered":"

This International Standard specifies a method for the chemical analysis of refractory and technical ceramic raw materials, intermediates and products, by means of the X-ray fluorescence (XRF) fused cast-bead method. Typical materials that can be analysed by this standard are given in Clause 3. This International Standard is not applicable to non-oxide materials, such as silicon carbides or nitrides, etc. The method is applicable to a wide range of materials containing a wide range of elements.<\/p>\n

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NOTE 1 The presence of significant amounts of certain elements, such as tin, copper, zinc and chromium, can present difficulties in the fusion process. In this case, the Bibliography can be referred to.<\/p>\n

NOTE 2 Constituents at concentrations greater than 99 % (on a dried basis) are reported by difference, provided that all likely minor constituents and any loss on ignition have been determined. These figures can also be checked by direct determination.<\/p>\n<\/blockquote>\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
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references
3 Types of material <\/td>\n<\/tr>\n
10<\/td>\n4 Principle
5 Apparatus <\/td>\n<\/tr>\n
11<\/td>\n6 Sample grinding <\/td>\n<\/tr>\n
12<\/td>\n7 Loss on ignition (and\/or drying)
8 Flux
8.1 Choice of flux and ratio of flux to sample <\/td>\n<\/tr>\n
13<\/td>\n8.2 Compensations for moisture in flux
9 Fusion casting procedures
9.1 Fusion of samples and casting of beads
9.1.1 Choice of procedure
9.1.2 Requirements <\/td>\n<\/tr>\n
14<\/td>\n9.1.3 Conversion of the sample to bead form
9.1.4 Manual casting of beads
9.1.4.1 General <\/td>\n<\/tr>\n
15<\/td>\n9.1.4.2 Cooling of beads
9.2 Automatic bead preparation
9.3 Storage <\/td>\n<\/tr>\n
16<\/td>\n9.4 Special problems
10 Calibration
10.1 Calibration standards
10.2 Reagents and series reference materials (SeRMs)
10.2.1 Purity and preparation of reagents <\/td>\n<\/tr>\n
17<\/td>\n10.2.2 Preparation of series reference materials (SeRMs) <\/td>\n<\/tr>\n
18<\/td>\n10.3 Calibration using reagents
10.3.1 Calibration standards
10.3.2 Method of calibration using binary and ternary standards
10.3.2.1 General
10.3.2.2 Definition of matrix <\/td>\n<\/tr>\n
19<\/td>\n10.3.2.3 Drift correction
10.3.2.4 Calibration standards
10.3.2.5 Calculation of calibration coefficients <\/td>\n<\/tr>\n
20<\/td>\n10.3.2.6 Line-overlap correction standards
10.3.2.7 Line-overlap corrections
10.3.2.8 Mass-absorption correction standards <\/td>\n<\/tr>\n
21<\/td>\n10.3.2.9 Model for mass-absorption correction coefficients
10.3.2.10 Calculation of mass-absorption correction coefficients <\/td>\n<\/tr>\n
22<\/td>\n10.3.2.11 Criteria for determination of theoretical mass-absorption correction coefficients
10.3.3 Multi-element calibration <\/td>\n<\/tr>\n
23<\/td>\n10.3.4 Calibration ranges
10.4 Calibration using SeRMs
10.4.1 Calibration standards <\/td>\n<\/tr>\n
24<\/td>\n10.4.2 Calibration curve and equation
10.4.2.1 Preparation of calibration curve
10.4.2.2 Preparation of calibration equation <\/td>\n<\/tr>\n
25<\/td>\n11 Corrections
11.1 Line-overlap correction
11.2 Background correction <\/td>\n<\/tr>\n
26<\/td>\n11.3 Drift correction
11.4 Calculation of results <\/td>\n<\/tr>\n
27<\/td>\n11.5 Software requirements <\/td>\n<\/tr>\n
28<\/td>\n12 Reproducibility and repeatability
12.1 Fusion tests
12.2 Frequency of instrument tests
12.3 Maximum allowance differences of sample holders <\/td>\n<\/tr>\n
29<\/td>\n12.4 Sample measuring positions
12.5 Instrument repeatability
12.6 Sequential systems <\/td>\n<\/tr>\n
30<\/td>\n12.7 Dead time
12.8 Other tests
12.9 Flow gas
13 Accuracy determined by certified reference materials
13.1 Validation of synthetic calibrations
13.2 Validation of SeRM calibrations
13.3 Fresh beads of the CRMs or synthetic standards used to check SeRM calibrations <\/td>\n<\/tr>\n
31<\/td>\n14 Definitions of limits of detection
15 Test report <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Chemical analysis of refractory products by X-ray fluorescence (XRF) – Fused cast-bead method<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2014<\/td>\n86<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":318339,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-318334","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/318334","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\/318339"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=318334"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=318334"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=318334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}