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ASTM D 5662a-2006 测定汽车齿轮油与典型油封弹性体兼容性的标准试验方法

上一篇: NF P98-819-4-2006 沥青混合物.材料规范.第4部分:热滚沥青
下一篇: NF R30-006-2006 幼童自行车.安全要求和试验方法

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.Product Code:SAE AMS3639
Title:Tubing, Irradiated Polyolefin Plastic, Electrical Insulation, Clear, Semi-Rigid, Heat-Shrinkable, 2 to 1 Shrink Ratio
Issuing Committee:Ams P Polymeric Materials Committee
Scope:This specification covers an irradiated, thermally-stabilized, modified polyolefin plastic in the form of semi-rigid, thin-wall, heat-shinkable tubing. This tubing has been used typically as a semi-rigid, electrical insulation tubing whose diameter can be reduced to a predetermined size by heating to 120 degrees C (250 degrees F) or higher, but usage is not limited to such applications.

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