BS AU 235 Pt.2-1991 工业车辆半挂车接轮耦合.第2部分:耦合销强度试验方法

上一篇: ANSI/SAE J839-1991 小客车侧门锁系统
下一篇: BS 3254 Pt.2-1991 道路车辆座椅带组件.第2部分:儿童用约束器具规范

标准名称：	微生物肥料生产菌株的鉴别 聚合酶链反应（PCR）法
发布部门：	中华人民共和国农业部
发布日期：	2011-09-02
实施日期：	2011-12-01
首发日期：
作废日期：
出版社：	中国农业出版社
出版日期：	2011-12-01

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Product Code:SAE AMS2649
Title:Etch Inspection of High Strength Steel Parts
Issuing Committee:Ams B Finishes Processes And Fluids Committee
Scope:This specification establishes the requirements for etch inspection of bare high strength low alloy steel parts having tensile strength of 180 ksi (1241 MPa) and higher and of carburized parts to detect overheating caused by abusive machining or grinding in the heat treated condition, and to detect localized discontinuous carburization. This process is not applicable to surface hardened steels produced by nitriding or carbonitriding. This process may remove 0.0001 to 0.0005 inch (2.5 to 12.7 micrometers) from the surface of the part.