课程文献中心 更多>>

关键词： 原子吸收光谱测定法   原子吸收分光光度测定法   化学分析和测试   化学特性   氧化铬   铬   氧化铬含量   含量   定义   测定   含量测定   皮革   皮革制品   材料测试   方法   抽样方法   样品   试样   测试  

标准号: ISO 5398-3-2007

摘要： This part of ISO 5398 describes a method for the determination of chromium in aqueous solution obtainedfrom leather. This is an analysis for total chromium in leather; it is not compound specific or specific to itsoxidation *** method describes the determination of chromium by atomic absorption spectrometry and is applicable toleathers which are expected to have chromic oxide contents in excess of 5 mg/kg. Two techniques for thepreparation of the solution to be analysed are included. In the case of dispute, the wet oxidation technique isto be used.

关键词： 化学分析和测试   化学特性   氧化铬   铬   氧化铬含量   含量   定义   测定   含量测定   碘滴定法   皮革   皮革制品   材料测试   方法   抽样方法   样品   试样   测试   滴定法  

标准号: ISO 5398-1-2007

摘要： This part of ISO 5398 describes a method for the determination of chromium in aqueous solution obtainedfrom leather. This is an analysis for total chromium in leather; it is not compound specific or specific to itsoxidation *** method describes the determination of chrome by iodometric titration and is to be applicable tochromium-tanned leathers which are expected to have chromic oxide contents in excess of 0,3 %. Twodifferent methods are described as alternatives for obtaining chromium in a suitable solution. It is appropriateto use either method.

关键词： 磨蚀试验   比较分析法   损伤   定义   擦伤试验   土工合成织物   土工学   土工织物   索引试验   实验室测试   负荷   材料   测量试样   方法   安装   粒状材料   耐力   耐磨损性   抽样方法   模拟   抗拉测试   测试   外观检查(测试)  

标准号: EN ISO 10722-2007

关键词： 化学分析和测试   化学特性   氧化铬   铬   氧化铬含量   含量   定义   测定   含量测定   电感耦合等离子体   皮革   皮革制品   材料测试   方法   发射光谱   发射光谱学   抽样方法   样品   试样   测试  

标准号: ISO 5398-4-2007

摘要： This part of ISO 5398 describes a method for the determination of chromium in aqueous solution obtainedfrom leather. This is an analysis for total chromium in leather; it is not compound specific or specific to itsoxidation *** method describes the determination of chromium by inductively coupled plasma – optical emissionspectrometry and is applicable to leathers which are expected to have chromic oxide contents in excess of1 mg/kg. Two techniques for the preparation of the solution to be analysed are included. In the case ofdispute, the wet oxidation technique is to be used.

关键词： 布   定义   变形   弹性(流体)   弹性试验   延伸   加长件   织物   针织物   材料测试   测量试样   无纺织织物   特性   抽样方法   试样制备   应变   应变控制   带材   表面型式   拉伸测试机   抗拉试验   试验设备   试验报告   测试   纺织品   裤子试验件   纺织物   机织物  

标准号: BS EN 14704-2-2007

摘要： This European Standard specifies the methods of test, which can be used to measure elasticity and relatedproperties of fabrics, when they undergo a deformation of their surface, excluding narrow fabrics. Twomethods are specified, one a dynamic method (method A) and the other a static method (method B).The results obtained cannot be compared. The choice of method should be agreed between parties andindicated in the test report.

关键词： 反刍动物   凝结剂活度   凝结   母牛   乳制品分析   奶牛饲养业   乳制品   定义   酶   食品   实验室间试验   数学计算   牛奶   干胃膜   抽样方法   试验报告   测试  

标准号: BS ISO 11815-2007

摘要： This International Standard describes a method for the determination of the total milk-clotting activity of bovine rennet containing only chymosin and bovine pepsin as the active coagulating enzymes on a standard milk substrate at pH 6,5. To produce accurate results with this method, test samples of unknown origin are to be checked for the absence of main milk-clotting enzymes of non-bovine origin by using an appropriate method (e.g. IDF 110B). This International Standard can also be applied to determine the total milk-clotting activity of fermentation-produced chymosin.

关键词： 水生生物学   生物分析和测试   化学分析和测试   水化学   海岸区   稳定性(机械特性)   定义   深度   说明书   调查方法   调查   海洋生物学   海洋环境   海洋污染   支付   物理测试   准备   过程描述   协议   质量   质量保证   样品   试样   采样设备   抽样方法   抽样表   海床   海水   海   海岸线   试样制备   标准方法   地表水   监督(认可)   取出   分类学   付款条件   测试   水   水质分析   水常规   水质   水质测试  

标准号: BS EN ISO 19493-2007

摘要： ISO 19493:2007 provides guidance for marine biological surveys of supralittoral, eulittoral and sublittoral hard substrate for environmental impact assessment and monitoring in coastal areas. It comprises development of the sampling programme, survey methods, species identification and storage of data and collected *** 19493:2007 specifies the minimum requirements for environmental *** methods are limited to surveys and semi-quantitative and quantitative recording techniques that cause little destruction of the fauna and flora. In practice, this refers to direct recording in the field and photography. Sampling by scraping off organisms, use of a suction sampler, etc. are not covered in ISO 19493:2007.

关键词： 审计   烟煤   煤   焦炭   定义   矿物燃料   燃料   指导手册   检验   力学   精密度   质量保证   取样   抽样方法   固体燃料   规范(验收)   试样制备   样品   监督(认可)   试样   测试   测试条件  

标准号: BS ISO 21398-2007

摘要： ISO 21398:2007 sets out recommended practices for the inspection of mechanical sampling systems. ISO 21398:2007 serves as a reference for conformance with applicable ISO/TC 27 International *** 21398:2007 covers general considerations including precision, mineral variability and bias, establishment of inspection systems and inspection procedure.

关键词： 代码   数据块   名称与符号   测定   挤压成型   喷射铸造法   模塑材料   模制材料(成型部件)   塑料   聚苯醚   PPE   特性   抽样方法   试样制备   试样   热塑性聚合物   热塑性  

标准号: BS EN ISO 15103-2-2007

摘要： ISO 15103-2:2007 specifies the methods of preparation of test specimens and the test methods to be used in determining the properties of poly(phenylene ether) moulding and extrusion materials. Requirements for handling test material and for conditioning both the test material before moulding and the specimens before testing are given *** and conditions are described for the preparation of test specimens, and procedures for measuring properties of the materials from which these specimens are made are given. Properties and test methods which are suitable and necessary to characterize poly(phenylene ether) moulding and extrusion materials are listed.

关键词： 分析   二氧化碳   二氧化碳的含量   化学分析和测试   耐化学性试验   混凝土   建筑   施工材料   定义   含量测定   评定   耐水解   质量   基准方法   耐力   抽样方法   固体混凝土   试验性能   试验报告   测试   水   水试样   水质测试  

标准号: BS EN 13577-2007

摘要： This European Standard specifies a reference method for the determination of carbon dioxide present in waterand which has a capacity to dissolve in lime from *** is not applicable to the measurement of total carbon dioxide present in *** other methods are used, it needs to be shown, that they give results equivalent to those obtained by thisreference *** test does not apply to water that has a pH less than 4,*** case of dispute, only the reference method is used.