{"id":460012,"date":"2024-10-20T10:07:16","date_gmt":"2024-10-20T10:07:16","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-21068-12024\/"},"modified":"2024-10-26T18:41:59","modified_gmt":"2024-10-26T18:41:59","slug":"bs-en-iso-21068-12024","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-21068-12024\/","title":{"rendered":"BS EN ISO 21068-1:2024"},"content":{"rendered":"<p>This document gives definitions and specifies techniques for the preparation of samples for the chemical analysis of silicon-carbide-containing raw materials and refractory products including: a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; SiC raw materials; b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; graphite brick containing silicon carbide; c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; silicon carbide brick (includes the bricks containing silicon nitride, silicon oxynitride, sialon); d)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; refractories containing carbon and\/or silicon carbide mixed with clay; e)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; refractories containing carbon and\/or silicon carbide mixed with silica (and fused silica); f)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; refractories containing carbon and\/or silicon carbide mixed with high alumina material; g)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; refractories containing carbon and\/or silicon carbide mixed with magnesia (and dolomite); h)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; refractories containing carbon and\/or silicon carbide mixed with chrome mineral or magnesia-chrome materials; i)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; refractories containing carbon and\/or silicon carbide except those described in a) to h) above. The items of analysis described in ISO&nbsp;21068-2, ISO&nbsp;21068-3 and ISO 21068-4 are as follows: \u2014&nbsp;&nbsp;&nbsp;&nbsp; loss on drying (LOD); \u2014&nbsp;&nbsp;&nbsp;&nbsp; loss on ignition (LOI); \u2014&nbsp;&nbsp;&nbsp;&nbsp; total carbon, Ctotal; \u2014&nbsp;&nbsp;&nbsp;&nbsp; free carbon, Cfree; \u2014&nbsp;&nbsp;&nbsp;&nbsp; silicon carbide, SiC; \u2014&nbsp;&nbsp;&nbsp;&nbsp; free silicon (Sifree); \u2014&nbsp;&nbsp;&nbsp;&nbsp; free aluminium (Alfree); \u2014&nbsp;&nbsp;&nbsp;&nbsp; free magnesium (Mgfree); \u2014&nbsp;&nbsp;&nbsp;&nbsp; free iron (Fefree); \u2014&nbsp;&nbsp;&nbsp;&nbsp; silicon(IV) dioxide (SiO2); \u2014&nbsp;&nbsp;&nbsp;&nbsp; aluminium(III) oxide (Al2O3); \u2014&nbsp;&nbsp;&nbsp;&nbsp; iron(III) oxide (Fe2O3); \u2014&nbsp;&nbsp;&nbsp;&nbsp; titanium(IV) oxide (TiO2); \u2014&nbsp;&nbsp;&nbsp;&nbsp; calcium oxide (CaO); \u2014&nbsp;&nbsp;&nbsp;&nbsp; magnesium oxide (MgO); \u2014&nbsp;&nbsp;&nbsp;&nbsp; sodium oxide (Na2O); \u2014&nbsp; &nbsp;&nbsp;&nbsp; potassium oxide (K2O); \u2014&nbsp;&nbsp;&nbsp;&nbsp; chromium(III) oxide (Cr2O3); \u2014&nbsp;&nbsp;&nbsp;&nbsp; zirconium(IV) oxide (ZrO2); \u2014&nbsp;&nbsp;&nbsp;&nbsp; boron oxide (total boron calculated as B2O3); \u2014&nbsp;&nbsp;&nbsp;&nbsp; nitrogen; \u2014&nbsp;&nbsp;&nbsp;&nbsp; oxygen; \u2014&nbsp;&nbsp;&nbsp;&nbsp; nitrides (undifferentiated: Si3N4, AlN, BN, sialon, oxy-nitrides, etc.); \u2014&nbsp; &nbsp;&nbsp;&nbsp; mineralogical phases (XRD-methods).<\/p>\n<h4>PDF Catalog<\/h4>\n<table border=\"1px\" class=\"des-table\">\n<tr>\n<th>PDF Pages<\/th>\n<th>PDF Title<\/th>\n<\/tr>\n<tr>\n<td><b>2<b><\/td>\n<td>undefined  <\/td>\n<\/tr>\n<tr>\n<td><b>12<b><\/td>\n<td>4.1 General  <br \/> 4.2 Sample pre-treatment  <br \/> 4.2.1 General  <br \/> 4.2.2 Crushing  <br \/> 4.2.3 Thermal pre-treatment \u2013 Drying   <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon &#8211; General information, terminology and sample preparation<\/b><\/p>\n<table class=\"shortdes-table\" style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/bsi\/\"><b>BSI<\/b><\/a><\/td>\n<td>2024<\/td>\n<td>16<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":460023,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-460012","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\/460012","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\/460023"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=460012"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=460012"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=460012"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}