Product Code:SAE J2721
Title:Recommended Corrosion Test Methods for Commercial Vehicle Components
Issuing Committee:Truck And Bus Corrosion Committee
Scope:This document establishes recommended practices to validate acceptable corrosion performance of metallic components and assemblies used in medium truck, heavy truck, and bus and trailer applications. The focus of the document is methods of accelerated testing and evaluation of results. A variety of test procedures are provided that are appropriate for testing components at various locations on the vehicle. The procedures incorporate cyclic conditions including corrosive chemicals, drying, humidity, and abrasive exposure. These procedures are intended to be effective in evaluating a variety of corrosion mechanisms as listed in Table 1. Test duration may be adjusted to achieve any desired level of exposure. Aggravating conditions such as joint rotation, mechanical stress, and temperature extremes are also considered. This document does not address the chemistry of corrosion or methods of corrosion prevention. For information in these areas, refer to SAE J447 or similar standard.【英文标准名称】:Advancedtechnicalceramics-Methodsoftestforceramicpowders-Determinationofimpuritiesinbariumtitanate
【原文标准名称】:高级工业陶瓷.陶瓷粉末的试验方法.钛酸钡中杂质的测定
【标准号】:BSEN725-2-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2007-11-30
【实施或试行日期】:2007-11-30
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:高级材料;高级工业陶瓷;AES;原子发射光谱法;钡;钛酸钡;陶瓷;测定;含量测定;发射分光光度测定法;ICP;杂质;材料试验;粒状材料;粉末;生产;测试
【英文主题词】:Advancedmaterials;Advancedtechnicalceramics;AES;Atomicemissionspectrometry;Barium;Bariumtitanate;Ceramic;Ceramics;Determination;Determinationofcontent;Emissionspectrophotometry;ICP;Impurities;Materialstesting;Particulatematerials;Powder;Production;Testing
【摘要】:ThispartofEN725describesamethodforthedeterminationofimpuritiesinbariumtitanatepowdersusinginductivelycoupledplasmaopticalemissionspectroscopy(ICP-OES).Themethodisapplicableonlytostoichiometricbariumtitanate.Themaximumconcentrationsmeasuredforeachimpurityareasfollows:?Sr4mg/g(4000ppm)?Ca500μg/g(500ppm)?K200μg/g(200ppm)?Na,Mg,Al,Fe,Nb100μg/g(100ppm)Theminimumconcentrationordetectionlimitsarefrom1μg/gto5μg/g(1ppmto5ppm).
【中国标准分类号】:Q32
【国际标准分类号】:81_060_30
【页数】:12P.;A4
【正文语种】:英语