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含碳质耐火材料检测项目报价? 解决方案? 检测周期? 样品要求? |
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本部分规定了碳化物和硬质合金中总碳量的测定方法。本部分适用于铬、铪、钼、铌、钽、钛、钒、钨和锆的碳化物,这些碳化物与粘结金属的混合料(无润滑剂)以及由这些碳化物生产的所有牌号的预烧结或烧结过的硬质合金中总碳量的测定。测定范围:总碳含量大于4%。
本标准规定了含碳、碳化硅、氮化物耐火材料及原料化学分析方法。本标准分析的项目如下:挥发分(VOL)、灼烧减量(LOI)、总碳量(T.C)、游离碳量(F.C)、碳化硅量(SiC)、总氮量(T.N)、总氧量(T.O)、氮化硅量(Si<下标3>N<下标4>)、游离硅量(F.Si)、游离铝量(F.Al)、二氧化硅量(SiO<下标2>)、氧化铝量(Al<下标2>O<下标3>)、氧化铁量(所有价态铁以Fe<下标2>O<下标3>计)、二氧化钛量(TiO<下标2>)、氧化钙量(CaO)、氧化镁量(MgO)、氧化钾量(K<下标2>O)、氧化钠量(Na<下标2>O)、五氧化二磷量(P<下标2>O<下标5>)、氧化锆(铪)量(ZrO<下标2>+HfO<下标2>)、一氧化锰量(所有价态锰以MnO计)、三氧化二铬量(Cr<下标2>O<下标3>)。本标准分析项目的测定范围见表1。
本标准规定了气相二氧化硅的术语和分类、要求、测定方法、检验规则、包装、标识、贮存与运输、采样。本标准适用于气相二氧化硅。
本标准规定了化学成分分析测量不确定度评定的通用规范以及重量法、滴定法、分光光度法、原子吸收光谱法、氢化物发生-原子荧光光谱法、电感耦合等离子体原子发射光谱法、火花放电原子发射光谱法、X射线荧光光谱法、红外吸收法和热导法、气体容量法测定碳含量测量不确定度评定方法。本标准适用于冶金材料化学成分分析测量不确定度的评定。
本标准规定了残碳量(碳化后)7%~50%的碱性致密定形耐火制品的分类和命名。本标准适用于残碳量(碳化后)7%~50%的碱性致密定形耐火制品。
本标准规定了特种致密定形耐火制品的分类和命名。本标准适用于氧化物制品、氧化物和非氧化物复合制品、非氧化物碳化硅制品或碳基制品;还有一些非氧化物制品仅有命名没有分类,例如硼化物、氮化物或以上列出系列更多结合形式的非氧化物制品。
本规范适用于工业炉砌筑工程的施工与验收,包括工业炉砌筑的共同规定及所列各炉砌筑的特殊要求。
本规范适用于有色金属冶炼厂新建、改建、扩建项目的节能设计。
本标准适用于轻金属冶炼工程的规划、勘察、设计、采购、施工、安装、运行维护和工程管理等术语。
本规范适用于工业与民用建筑中的钢结构以及钢管混凝土柱、压型钢板-混凝土组合楼板、钢与混凝土组合梁等组合结构的防火设计及其防火保护的施工与验收。不适用于内置型钢混凝土组合结构。
本标准规定了蓝晶石、红柱石和硅线石的术语和定义、分类与牌号、技术要求、试验方法、检验规则、包装、标志、运输、储存和质量证明书。本标准适用于采矿和选矿所获得的蓝晶石、红柱石和硅线石,主要用于耐火材料、技术陶瓷等产品的原料。
本标准适用于化学工业炉设计。
本标准规定了电阻炉用粘土质耐火制品的产品分类、技术要求、试验方法、检验规则、标志和包装要求等。 本标准适用于工作温度分别低于各品种的荷重软化开始温度的制品。
本标准规定了大型可控气氛井式渗碳炉生产线的术语和定义、渗碳炉分类及生产线主要技术参数、设计和制造、配套设施、热处理技术、热处理工件品质控制与检验、可靠性、安全卫生、环境保护和能耗、检验和试验方法等要求。本标准适用于高工作温度为950℃,电加热大型可控气氛井式渗碳炉生产线的设计、制造、检验和验收。
The materials covered that must meet ASTM specifications are uranium metal and uranium oxide. Uranium materials are used as nuclear reactor fuel. For this use, these materials must meet certain criteria for uranium content, uranium-235 enrichment, and impurity content, as described in Specifications C 753 and C 776. The material is assayed for uranium to determine whether the content is as specified. Uranium alloys, refractory uranium materials, and uranium containing scrap and ash are unique uranium materials for which the user must determine the applicability of this practice. In general, these unique uranium materials are dissolved with various acid mixtures or by fusion with various fluxes.1.1 This practice covers dissolution treatments for uranium materials that are applicable to the test methods used for characterizing these materials for uranium elemental, isotopic, and impurities determinations. Dissolution treatments for the major uranium materials assayed for uranium or analyzed for other components are listed.1.2 The treatments, in order of presentation, are as follows:Procedure TitleSectionDissolution of Uranium Metal and Oxide with Nitric Acid8.1Dissolution of Uranium Oxides with Nitric Acid and Residue Treatment8.2Dissolution of Uranium-Aluminum Alloys in Hydrochloric Acid with Residue Treatment8.3Dissolution of Uranium Scrap and Ash by Leaching with Nitric Acid and Treatment of Residue by Carbonate Fusion8.4Dissolution of Refractory Uranium-Containing Material by Carbonate Fusion8.5Dissolution of Uranium-Aluminum Alloys Uranium Scrap and Ash, and RefractoryUranium-Containing Materials by Microwave Treatment8.61.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific hazards statements are given in Section 7.
La présente partie de l'ISO 21068 spécifie des méthodes permettant de doser l'azote total et l'azote calculés comme le nitrure de silicium, l'oxygène total et les composés libres métalliques et contenant de l'oxyde dans les matières premières et produits réfractaires de carbure de silicium.Elle s'applique uniquement aux matériaux contenant du carbure de silicium qui ne sont pas liés à l'azote. Les matériaux contenant du carbure de silicium qui sont liés à l'azote sont couverts par l'EN 12698-1.
Determination of GHG direct and indirect emissions based on a mass balance method at each process step for the steel industry. Definition of performance indicators will be included as well as rules for consolidation of processes at site level. The objective is the determination of a methodology to evaluate and compare the emission performance over time or between sites. Field test will be organized to compare mass balance methodology and stack measurements for assessment of direct emissions.
This part of ISO 21068 specifies analytical techniques for the determination of change in mass by thermaltreatment at specified temperatures, and methods for the determination of the total carbon content, freecarbon, silicon carbide, silicon, total silica and free silica content of silicon-carbide-containing raw materialsand refractory products.
This part of ISO 21068 specifies methods for the determination of total nitrogen and nitrogen calculated assilicon nitride, total oxygen, and free metallic and oxidic components in silicon carbide raw materials andrefractory products.It applies only to silicon carbide materials that are not bonded with nitrogen. Nitride-bonded silicon carbiderefractories are covered in EN 12698-1.
This document is a vocabulary which provides a list of terms and associated definitions which aretypically used for advanced technical ceramic materials, products, applications, propertiesand processes. The document contains, in separate lists, those abbreviations which have foundgeneral acceptance in scientific and technical literature; they are given together with thecorresponding terms and definitions or descriptions.NOTE 1 This document does not include terms which, though used in the field of advanced technicalceramics, are of a more general nature and are also well known in other fields of technology.NOTE 2 A list of some European Standards, European Prestandards and Draft European Standards of CENTechnical Committee 184 “Advanced technical ceramics” containing terms defined in this document, is given in the Bibliography.