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NF L46-015-1987 O形圈.20B8丁晴橡胶.精度等级A.性能等级3

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【英文标准名称】:O-rings.Butadieneacrylonitrilerubber20B8.PrecisionclassA.Performanceclass3.
【原文标准名称】:O形圈.20B8丁晴橡胶.精度等级A.性能等级3
【标准号】:NFL46-015-1987
【标准状态】:现行
【国别】:法国
【发布日期】:1987-09-01
【实施或试行日期】:1987-09-05
【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】:航空运输;弹性体;尺寸;丁二烯丙烯腈橡胶;丁腈橡胶;飞行器设备;O型密封圈;橡胶;飞行器部件;名称与符号;聚丁橡胶;环形密封圈;航空工业;图表
【英文主题词】:Designations;Diameter;Dimensionaltolerances;Dimensions;Fluidcircuits;Fluidengineering;Fluidtechnology;Hydraulicequipment;Hydraulicfluidpower;Hydraulictransmissionsystems;Identification;Insidediameters;O-rings;Sealingrings;Seals;Sizecoding;Tolerances(measurement);Toroidalsealingrings
【摘要】:
【中国标准分类号】:V21
【国际标准分类号】:23_100_60
【页数】:9P.;A4
【正文语种】:其他


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Product Code:SAE J2217
Title:Photometric Guidelines for Instrument Panel Displays That Accommodate Older Drivers
Issuing Committee:Mature Driver Standards Committee
Scope:Physical parameters that influence the legibility of an instrument panel display include letter/graphic size, the luminance and color difference between graphics and background, the observer's luminance adaptation level, and the level of glare present. Several aspects of visual functioning deteriorate as part of the normal aging process. These include a reduction in luminance and color contrast sensitivity, an increase in sensitivity to glare, a reduction in visual accommodation capacity, and a reduction in the sensitivity to light. This SAE Information Report provides introductory information that should be considered when setting photometric guidelines for instrument panel displays that are designed to accommodate the older driver. More detailed information is provided in Section 2 of this document.【英文标准名称】:StandardTestMethodforTensileStress-StrainofCarbonandGraphite
【原文标准名称】:碳和石墨抗拉应力的标准试验方法
【标准号】:ASTMC749-1992
【标准状态】:现行
【国别】:美国
【发布日期】:1992
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:碳;石墨;耐火材料;抗拉应力;试验
【英文主题词】:Carbon;Graphite;Refractorymaterials;Tensilestress;Testing
【摘要】:
【中国标准分类号】:D53;Q50
【国际标准分类号】:71_060_10
【页数】:12P;A4
【正文语种】:英语