【英文标准名称】:Cellularplasticsandrubbers;determinaitonofapparent(bulk)density
【原文标准名称】:泡沫塑料和橡胶表观密度的测定
【标准号】:ISO845-1988
【标准状态】:作废
【国别】:国际
【发布日期】:1988-12
【实施或试行日期】:1988-12-01
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC61
【标准类型】:()
【标准水平】:()
【中文主题词】:测定;微孔塑料;硬质塑料;多孔材料;体密度;试验;橡胶;塑料
【英文主题词】:
【摘要】:Specificationofamethodfordeterminingtheapparentdensityorthebulkdensityofrigid,semi-rigidorflexiblecellularplasticsandrubbers.Ifthematerialtobetestedincludesskinsformedduringmoulding,theapparentoveralldensityortheapparentcoredensitymaybedetermined.Eachtestpieceshallbeofashape,thatitsvolumecanbeeasilycalculated.
【中国标准分类号】:G30
【国际标准分类号】:83_100
【页数】:3P;A4
【正文语种】:英语


Product Code:SAE AS4074
Title:Linear Token Passing Multiplex Data Bus
Issuing Committee:As-1a Avionic Networks Committee
Scope:This standard specifies the characteristics of the SAE Linear Token Passing Bus (LTPB) Interface Unit. The LTPB provides a high reliability, high bandwidth, low latency serial interconnection network suitable for utilization in real time military and commercial applications. Multiple redundant data paths can be implemented to enhance reliability and survivability in those applications which require these attributes. The token passing and data exchange protocols are optimized to provide low latency and fast failure detection and correction. Physical configurations with bus lengths up to 1000 m can be accommodated.