NF A50-801-1987 铝和铝合金.园截面焊接圆管.尺寸和尺寸公差
时间:2024-05-23 19:15:16 来源: 标准资料网 作者：标准资料网 阅读：8067
【英文标准名称】:ALUMINIUMANDALUMINIUMALLOYS.ROUNDWELDEDTUBES.DIMENSIONSANDFORMTOLERANCES.
【原文标准名称】:铝和铝合金.园截面焊接圆管.尺寸和尺寸公差
【标准号】:NFA50-801-1987
【标准状态】:作废
【国别】:法国
【发布日期】:1987-09
【实施或试行日期】:1987-08-05
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:铝合金;线密度;铝管;尺寸公差;有色金属;非铁合金;尺寸;有色金属制品;名称与符号;焊接;冷加工;形状公差;焊接管;管;铝
【英文主题词】:
【摘要】:
【中国标准分类号】:H61
【国际标准分类号】:
【页数】:8P;A4
【正文语种】:其他
MIL-PRF-914C, PERFORMANCE SPECIFICATION, RESISTOR NETWORKS, FIXED, FILM, SURFACE MOUNT, NON-ESTABLISHED RELIABILITY, AND ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR (22 APR 2008) [SUPERSEDING MIL-R-914]., This specification covers the general requirements for non-established reliability (non-ER) and established reliability (ER), hermetically sealed (see 3.27) and nonhermetically sealed networks (see 3.27.1). These networks consist entirely of fixed, film resistors. They are primarily intended for use in surface mount applications where space is a major concern. ER resistors covered by this specification will have life failure rates (FR) ranging from 1 percent to 0.001 percent per 1,000 hours (see 1.2.1.7). The ER FR are established at a minimum 60-percent confidence level on the basis of life tests.【英文标准名称】:Informationtechnology-Securitytechniques-Entityauthentication-Mechanismsusingsymmetricenciphermentalgorithms
【原文标准名称】:信息技术.安全技术.实体鉴定.对称加密算法机理
【标准号】:BSISO/IEC9798-2-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2009-02-28
【实施或试行日期】:2009-02-28
【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】:算法;校验;确定性试验;数据编码;数据处理;数据保护;数据安全;数据传输;定义;信息交换;信息技术;IT安全;多路存取计算机;对称的
【英文主题词】:Algorithms;Authentication;Authenticitytest;Dataenciphering;Dataprocessing;Dataprotection;Datasecurity;Datatransmission;Definition;Definitions;Informationinterchange;Informationtechnology;ITsecurity;MAC;Symmetrical
【摘要】:
【中国标准分类号】:L80
【国际标准分类号】:35_040
【页数】:26P;A4
【正文语种】:英语