NF Q34-030-9-2005 薄纸和薄纸制品.第6部分:钢球式顶破强力的测定

上一篇: NF T57-403-2005 纤维增强塑料复合材料.用板捻法测定平面内剪切模量
下一篇: NF T46-020-2005 硫化或热塑性橡胶.剪切模量或与硬板粘合强度测定.四倍剪切法

Product Code:SAE J449
Title:Surface Texture Control (STABILIZED Aug 2011)
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.

标准名称：	CD-3型小电感电桥(试行)
中标分类：	综合 >> 计量 >> 电磁计量
发布日期：
实施日期：	1990-12-01
首发日期：
作废日期：
出版日期：
页数：	4页

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