NF S31-062-3-1994 声学.听力保护器.质量检验用耳罩型保护器插入损失简易测量法
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【英文标准名称】:Acoustics.Hearingprotectors.Part3:simplifiedmethodforthemeasurementofinsertionlossofear-mufftypeprotectorsforqualityinspectionpurposes.
【原文标准名称】:声学.听力保护器.质量检验用耳罩型保护器插入损失简易测量法
【标准号】:NFS31-062-3-1994
【标准状态】:作废
【国别】:法国
【发布日期】:1994-03-01
【实施或试行日期】:1994-03-20
【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】:隔音;护耳器;声学试验;测量技术;安全装置;试验;测量;定义;检验;噪声降低;耳机上的橡皮护套;耳罩式保护装置;声学测量;质量控制;声级;声学
【英文主题词】:Acousticmeasurement;Acoustictesting;Acoustics;Definition;Definitions;Earmuffs;Earprotectors;Ear-mufftypewearingprotectors;Inspection;Measurement;Measuringtechniques;Noisereduction;Qualitycontrol;Safetydevices;Soundinsulation;Soundlevels;Testing;Tests
【摘要】:
【中国标准分类号】:C73
【国际标准分类号】:13_340_20
【页数】:7P;A4
【正文语种】:其他
Product Code:SAE ARP1675
Title:Structural Weldbonding of Aluminum Structures
Issuing Committee:Ams P17 Composite Materials Committee
Scope: This SAE Aerospace Recommended Practice describes the aluminum weldbonding process for fabrication of secondary aircraft structural assemblies possessing excellent strength, fatigue life, and environmental durability. The nature of the weld nugget, produced by resistance weldbonding, provides microcrack initiators and propagators which compromise the fatigue life. Additional development work is required to validate this process for each primary aircraft structure. This manufacturing process has been developed and validated for high strength bare aluminum alloys AMS-4037 and AMS-4045 within the thickness gages of 0.020 to 0.125 in (0.51 to 3.48 mm). It is expected to be applicable to other bare aluminum alloys and tempers. The use of this process is not recommended for clad or mixed bare-clad alloy systems because of decreased environmental durability. The surface preparation system has been validated for use with 80 degrees C (176 degrees F) service temperature modified epoxy paste adhesive which cures at 120 to 125 degrees C (248 to 257 degrees F). The adhesive contains a radio-opaque substance, strontium chromate, which permits nondestructure examination for bondline voids by X-radiography.e surface preparation system has been validated for use with 80 degrees C (176 degrees F) service temperature modified epoxy paste adhesive which cures at 120 to 125 degrees C (248 to 257 degrees F). The adhesive contains a radio-opaque substance, strontium chromate, which permits nondestructure examination for bondline voids by X-radiography.【英文标准名称】:Informationtechnology-Securitytechniques-Informationsecuritymanagementsystems-Requirements
【原文标准名称】:信息技术.安全技术.信息安全管理系统.要求
【标准号】:ANSI/INCITS/ISO/IEC27001-2005
【标准状态】:现行
【国别】:美国
【发布日期】:2005
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:计算机网络;计算机技术;计算机;数据交换;数据处理;数据保护;数据安全;数据存储保护;定义;文献;信息安全;情报系统;维修;管理;安全管理
【英文主题词】:Computernetworks;Computertechnology;Computers;Dataexchange;Dataprocessing;Dataprotection;Datasecurity;Datastorageprotection;Definition;Definitions;Documents;Informationsecurity;Informationsystems;Maintenance;Management;Securitymanagement
【摘要】:ThisInternationalStandardcoversalltypesoforganizations(e.g.commercialenterprises,governmentagencies,non-profitorganizations).ThisInternationalStandardspecifiestherequirementsforestablishing,implementing,operating,monitoring,reviewing,maintainingandimprovingadocumentedISMSwithinthecontextoftheorganization'soverallbusinessrisks.Itspecifiesrequirementsfortheimplementationofsecuritycontrolscustomizedtotheneedsofindividualorganizationsorpartsthereof.
【中国标准分类号】:L70
【国际标准分类号】:35_040
【页数】:
【正文语种】:英语
