EN 301029-4-1998 宽带综合业务数字网(B-ISDN).信令系统No.7.B-ISDN用户部分(B-ISUP).第4部分:网络节点界面用无状态改变的抢先((ITU-T-推荐标准Q.2724.11996)

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下一篇: EN 60679-5-1-1998 经过质量评定的石英晶体控振荡器.第5-1部分:空白详细规范.合格鉴定

【英文标准名称】:StandardTestMethodforTranslaminarFractureToughnessofLaminatedPolymerMatrixCompositeMaterials
【原文标准名称】:层压聚合物基质组分物质横断成层断裂韧性的标准试验方法
【标准号】:ASTME1922-1997
【标准状态】:作废
【国别】:美国
【发布日期】:1997
【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】:层压聚合物;基质组分;横断成层断裂韧性
【英文主题词】:laminatedpolymer;matrixcomposite;translaminarfracturtoughness
【摘要】:
【中国标准分类号】:G31
【国际标准分类号】:
【页数】:
【正文语种】:英语


Product Code:SAE J449
Title:Surface Texture Control
Issuing Committee:Surface Enhancement Committee
Scope:SAE J448, Surface Texture, has been set up for precision reference specimens using a controlled surface profile to obtain reproducible roughness values. These specimens are for instrument calibration. Appropriate symbols for roughness, waviness, and lay have also been standardized (ASA B46.1-1962 and SAE J448).For production control, especially from one geographical location to another, means are required to facilitate the inspection of surface characteristics called for by specifications which include not only roughness but profile waviness and lay. In order to integrate the requirements of the designer with the actual production of surfaces, a second grade of control standards must be adopted which will be functional in nature for the specific product being manufactured. These control standards may be Calibrated Pilot Specimens (actual parts with satisfactory texture) or Roughness Comparison Specimens (ASA B46.1-1962). This SAE Recommended Practice describes the usage of these control standards.ese control standards.