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EN 60617-5-1996 线图图形符号.第5部分:半导体和电子管线路标记

作者:标准资料网 时间:2024-05-13 10:33:09  浏览:8702   来源:标准资料网
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【英文标准名称】:Graphicalsymbolsfordiagrams-Part5:Semiconductorsandelectrontubes(IEC60617-5:1996);GermanversionEN60617-5:1996
【原文标准名称】:线图图形符号.第5部分:半导体和电子管线路标记
【标准号】:EN60617-5-1996
【标准状态】:现行
【国别】:
【发布日期】:1997-08
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:符号;半导体器件;标记;作标记;图形符号;电气工程;布线图;辐射探测器;电子管;符号要素;半导体
【英文主题词】:Circuitdiagrams;Circuits;Electricalengineering;Electrontubes;Electronicequipmentandcomponents;Engineeringdrawings;Graphicrepresentation;Graphicsymbols;Graphicalsymbols;Marking;Marks;Radiationdetectors;Semiconductordevices;Semiconductors;Symbolcollection;Symbolelement;Symbols;Wiringdiagrams
【摘要】:
【中国标准分类号】:L04
【国际标准分类号】:01_080_40;31_080_01;31_100
【页数】:51P.;A4
【正文语种】:英语


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基本信息
标准名称:出口水果中乙氧三甲喹啉残留量检验方法
英文名称:Method for the determination of ethoxyquin residues in fruits for export
中标分类: 农业、林业 >> 经济作物 >> 经济作物综合
发布部门:中华人民共和国国家进出口商品检验局
发布日期:1996-04-29
实施日期:1996-10-01
首发日期:1900-01-01
作废日期:1900-01-01
主管部门:中华人民共和国国家进出口商品检验局
提出单位:中华人民共和国国家进出口商品检验局
归口单位:中华人民共和国国家进出口商品检验局
起草单位:中华人民共和国浙江进出口商品检验局
起草人:郑自强、唐红芳、朱晓雨
出版日期:1996-10-01
页数:9页
适用范围

本标准规定了出口水果中乙氧三甲喳琳残留量检验的抽样、制样和荧光分光光度测定方法。
本标准适用于出口苹果中乙氧三甲喳琳残留量的检验。

前言

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引用标准

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所属分类: 农业 林业 经济作物 经济作物综合
Product Code:SAE J469
Title:Zinc Die Casting Alloys
Issuing Committee:Metals Technical Executive Steering Committee
Scope:Because of the drastic chilling involved in die casting and the fact that the solid solubilities of both aluminum and copper in zinc change with temperature, these alloys are subject to some aging changes, one of which is a dimensional change. Both of the alloys undergo a slight shrinkage after casting, which at room temperature is about two-thirds complete in five weeks. It is possible to accelerate this shrinkage by a stabilizing anneal, after which no further changes occur. The recommended stabilizing anneal is 3 to 6 h at 100 掳C (212 掳F), or 5 to 10 h at 85 掳C (185 掳F), or 10 to 20 h at 70 掳C (158 掳F). The time in each case is measured from the time at which the castings reach the annealing temperature. The parts may be air cooled after annealing. Such a treatment will cause a shrinkage (0.0004 in per in) of about two-thirds of the total, and the remaining shrinkage will occur at room temperature during the subsequent few weeks. Stabilizing results in a decrease in dimensions of about 0.0005 in per in from the original size of the casting. Stabilizing is, of course, unnecessary if the machine or fitting operations can be delayed until the castings have aged five weeks at room temperature.ns of about 0.0005 in per in from the original size of the casting. Stabilizing is, of course, unnecessary if the machine or fitting operations can be delayed until the castings have aged five weeks at room temperature.

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