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GB/T 8822.9-1988 中国林木种子区 长白落叶松种子区

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基本信息
标准名称:中国林木种子区 长白落叶松种子区
英文名称:Seed zones of chinese forest trees-Seed zones of larix olgensis henry
中标分类: 农业、林业 >> 林业 >> 种子、苗水、苗圃
ICS分类: 农业 >> 农业和林业 >> 绿化和造林
发布部门: 国家林业局
发布日期:1988-02-26
实施日期:1988-08-01
首发日期:1988-02-26
作废日期:1900-01-01
主管部门:国家林业局
归口单位:全国林木种子标准化技术委员会
起草单位:东北林业大学
出版日期:1900-01-01
页数:0
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所属分类: 农业 林业 林业 种子 苗水 苗圃 农业 农业和林业 绿化和造林
基本信息
标准名称:铅黄铜线
中标分类: 冶金 >> 有色金属及其合金产品 >> 重金属及其合金
替代情况:被GB/T 14954-1994代替
发布日期:
实施日期:1983-03-01
首发日期:
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页数:4页
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所属分类: 冶金 有色金属及其合金产品 重金属及其合金
Product Code:SAE J1926/4
Title:Connector for Fluid Power and General Use - Ports and Stud End with ASME B1.1 Threads and O-Ring Seal - Part 4: External Hex and Internal Hex Inch Port Plugs - Dimensions, Design, Test Methods and Requirements
Issuing Committee:Hydraulic Tube Fittings Committee
Scope:This part defines performance requirements, dimensions, and designs for ?2 through ?32 internal and external hex port plugs for use in SAE J1926 1 ports. Testing and usage through many years confirm the performance requirements of port plugs made from carbon steel. The port plugs were specified in SAE J514 without any performance requirements. They have been developed and tested to gain a 4:1 working pressure rating for industrial applications.In fluid power systems, power is transmitted and controlled through a fluid (liquid or gas) under pressure within an enclosed circuit. In general applications, a fluid may be conveyed under pressure. Components are connected through their threaded ports by stud ends on fluid conductor fittings to tubes and pipes or to hose fittings and hoses.For threaded ports and stud ends specified in new designs in hydraulic fluid power applications, only ISO 6149 shall be used. Threaded ports and stud ends in accordance with ISO 1179, ISO 9974, and ISO 11926 are not to be used in new designs in hydraulic fluid power applications.Conformance to the dimensional information in this part of J1926 does not guarantee rated performance. Each manufacturer should perform testing according to the specification contained in this part of J1926 to assure that components comply with the performance ratings.