MIL-HDBK-7B

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MIL-HDBK-7B, MILITARY HANDBOOK: LUMBER AND ALLIED PRODUCTS (6 AUG 1982)., lumber and wood products normally procured in considerable quantity for Department of Defense installations. Engineers are particular directed to the chapters dealing with strength of wood, preservative treatment, and moisture c o n t e n t . The chapters dealing with storage handling, tallying, inspection, grading, and sizes were written with the problems of inspectors, stock handlers, and supply clerks in mind. All of these chapters prove useful to the requisition writer by providing references useful in determining which species, q u a l i t i e s , and sizes of lumber, plywood, poles, railroad ties, and other wood products are usable for a given end use. This handbook also provides ready reference to the physical and mechanical properties of lumber products and the conditions of use that require special treatment with preservatives, fire r e t a r d a n t s , or special surfacing and machining. It is the primary purpose of this handbook to provide the kind of background information needed in making necessary decisions on all such problems. This type of information is not readily available elsewhere in a form directly related to supply problems involving lumber and allied products. To the extent that this handbook achieves its primary purpose, it is believed that important economies can be effected, greater assurance secured that the needed species, q u a l i t i e s , q u a n t i t i e s , and sizes will be received, and requisitioning procedures f a c i l i t a t e d . The handbook also has as part of its purpose to provide information on the handling, storage, and use of wood products to the end that better service will be obtained at less cost. The large quantities of wood products normally required by the various branches of the Department of Defense make economy of use just as essential as economical procurement; failure in the one can quickly offset any gains realized through success in the other. Moreover, proper handling, storage, and use are essential in the interest of conservation of the forest resources.

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【英文标准名称】:Fluidpower;hydrauliccylinder160barcompact;mountingdimensions
【原文标准名称】:流体动力.160巴紧密式液压缸.安装尺寸
【标准号】:DIN24554-1990
【标准状态】:现行
【国别】:德国
【发布日期】:1990-09
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:螺纹;尺寸;设计;形状;流体工程;流体动力缸;液压缸;流体技术;公差;压力;机械工程
【英文主题词】:Design;Dimensions;Fluidengineering;Fluidpowercylinders;Hydrauliccylinders;Mechanicalengineering;Pressure;Shape;Threads;Tolerances(measurement)
【摘要】:Thisstandardstatesthemountingdimensionsfor160bar(1600KPa)cylinders.Thestaticpressureis250bar(2500KPa),thisis1,5timesnominalpressure.Thedimensioningpermitscushioningifnecessary.
【中国标准分类号】:J20
【国际标准分类号】:23_100_20
【页数】:5P;A4
【正文语种】:德语


基本信息
标准名称:30MHZ~1GHZ声音和电视信号的电缆分配系统电源设备技术条件
英文名称:Specification of equipments for power suppply used in cabled distribution systems primarily intended ofr sound and television signls operating between 30MHz and 1GHz
中标分类: 通信、广播 >> 广播、电视网 >> 广播、电视网结构
替代情况:被GB/T 11318.9-1996代替
发布日期:1994-02-26
实施日期:1994-10-01
首发日期:1900-01-01
作废日期:1997-05-01
起草单位:机械无线电天线厂
出版日期:1900-01-01
页数:6页
适用范围

本标准规定了30MHz~1GHz声音和电视信号的电缆分配系统中直流稳压电源、线路供电器和电源插入器等电源设备(以下简称设备)的产品分类、技术要求、试验方法、检验规则以及标志、包装、运输和贮存等。本标准适用于30MHz~1GHz声音和电视信号的电缆分配系统的电源设备。

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所属分类: 通信 广播 广播 电视网 广播 电视网结构