原文标准名称：含碳化硅的原材料和耐火制品的化学分析.第1部分:一般信息和样品制备

英文标准名称：Chemical analysis of silicon-carbide-containing raw materials and refractory products - Part 1: General information and sample preparation (ISO 21068-1:2008); English version of DIN EN ISO 21068-1:2008-12

中文主题词：分析;分析方法;碳化物;碳;陶瓷;化学分析和试验;组件;定义;材料;材料试验;普通陶瓷;含氧量;原材料;耐熔的;耐火材料;耐火制品;样本制备;试样;抽样方法;碳化硅;硅无机化合物;试样制备;试验报告;试验

英文主题词：Analysis;Analysis methods;Carbides;Carbon;Ceramics;Chemical analysis and testing;Components;Definition;Definitions;Materials;Materials testing;Ordinary ceramics;Oxygen content;Raw materials;Refractory;Refractory materials;Refractory products;Sample preparation;Samples;Sampling methods;Silicon carbide;Silicon inorganic compounds;Specimen preparation;Test reports;Testing

标准号：DIN EN ISO 21068-1-2008

标准状态：现行

国别：德国

发布日期：2008-12-01

实施或试行日期：

发布单位：德国标准化学会(DE-DIN)

起草单位：

标准类型：

标准水平：

中国标准分类号：Q41

国际标准分类号：81_080

页数：0

正文语种：英语

内容简介

This part of ISO 21068 gives definitions and specifies techniques for the preparation of samples for thechemical analysis of silicon-carbide-containing raw materials and refractory products including:a) graphite brick containing silicon carbide;b) silicon carbide brick (includes the bricks containing silicon nitride);c) refractories containing carbon and/or silicon carbide mixed with clay;d) refractories containing carbon and/or silicon carbide mixed with silica (and fused silica);e) refractories containing carbon and/or silicon carbide mixed with high alumina material;f) refractories containing carbon and/or silicon carbide mixed with magnesia (and dolomite);g) refractories containing carbon and/or silicon carbide mixed with chrome mineral or magnesia-chrome materials;h) refractories containing carbon and/or silicon carbide except those described in a) to g) above.The items of chemical analysis described in ISO 21068, Parts 1 to 3 are as follows: 1) loss on drying (LOD); 2) loss on ignition (LOI); 3) total carbon, Ctotal; 4) free carbon, Cfree; 5) silicon carbide, SiC; 6) free silicon (Sifree); 7) free aluminium (Alfree); 8) free magnesium (Mgfree); 9) free iron (Fefree); 10) silicon(IV) oxide (SiO2);11) aluminium oxide (AI2O3);12) iron(Ill) oxide (total iron oxide calculated as Fe2O3);13) titanium(IV) oxide (TiO2);14) calcium oxide (CaO);15) magnesium oxide (MgO);16) sodium oxide (Na20);17) potassium oxide (K20);18) chromium(Ill) oxide (Cr203);19) zirconium oxide (ZrO2);20) boron oxide (total boron calculated as B2O3);21) nitrogen;22) oxygen;23) nitrides (undifferentiated: Si3N4, AIN, BN, sialon, oxy-nitrides, etc.).