DIN V ENV 50121-4-1995 铁路使用.电磁兼容性.第4部分:信号和电信装置的干扰发射和抗干扰性的要求
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【英文标准名称】:Railwayapplication-Electromagneticcompatibility-Part4:Standardforemissionandimmunityofthesignallingandtelecommunicationapparatus;GermanversionprENV50121-4:1995
【原文标准名称】:铁路使用.电磁兼容性.第4部分:信号和电信装置的干扰发射和抗干扰性的要求
【标准号】:DINVENV50121-4-1995
【标准状态】:作废
【国别】:德国
【发布日期】:1995-10
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:干扰辐射;铁路设备;电气工程;电气安全;电力系统;干扰抑制;电力网供电;测量技术;电磁兼容性;极限(数学);铁路;安全要求;信号装置;规范(批准);定义;电信
【英文主题词】:
【摘要】:
【中国标准分类号】:P65;L06
【国际标准分类号】:29_020;45_020
【页数】:16P;A4
【正文语种】:德语
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】:Plastics--Polyolsforuseintheproductionofpolyurethanes--Part7:Determinationofbasicity,expressedaspercentnitrogenandtotalaminevalue
【原文标准名称】:塑料.用在聚氨酯产品上的多元醇.第7部分:表示成百分点氮和总胺价的碱度测定
【标准号】:JISK1557-7-2011
【标准状态】:现行
【国别】:
【发布日期】:2011-03-22
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JP-JISC)
【起草单位】:TechnicalCommitteeonChemicalProducts
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:G31
【国际标准分类号】:83_080_10
【页数】:10P;A4
【正文语种】:日语
