SAE AMS4100 Aluminum Alloy, Alclad, Sheet, 5.7Zn - 2.2Mg - 1.6Cu - 0.22Cr (Alclad 7475-T761), Solution and Precipitation

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Product Code:SAE AMS4100
Title:Aluminum Alloy, Alclad, Sheet, 5.7Zn - 2.2Mg - 1.6Cu - 0.22Cr (Alclad 7475-T761), Solution and Precipitation Heat Treated
Issuing Committee:Ams D Nonferrous Alloys Committee
Scope:This specification covers an aluminum alloy in the form of alclad sheet.
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【英文标准名称】:StandardPracticeforUsingBrineShrimpNaupliiasFoodforTestAnimalsinAquaticToxicology
【原文标准名称】:含水毒理学中动物试验用作为受试食品的海水小虾类的标准规程
【标准号】:ASTME1203-1998(2004)
【标准状态】:现行
【国别】:
【发布日期】:1998
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E47.01
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:工艺;危险物质;农药;动物;夹盘;毒性;试验;污染控制
【英文主题词】:aquatictoxicology;Artemia;brineshrimp;feeding;nutrition
【摘要】:Incertaintoxicitytestsduringwhichsmallaquaticanimalsmustbefed,thefoodofchoiceisoftenlivebrineshrimpnaupliibecauseoftheiravailability,easeofuse,andpresumedgoodnutritionalquality.Inaddition,manytestspeciesthatareculturedorheldinthelaboratorymustbefedpriortotoxicitytesting,eveniftheyarenotfedduringthetest.Brineshrimpnaupliicanbereadilyhatchedinthelaboratoryfromcyststhatareobtainednaturallyfrommanygeographicalareasaroundtheworld.Cystsfromafewofthoseareasareavailablecommercially,butmightrepresenttwoormorespeciesofbrineshrimp(1).Naupliiofdifferentstrainsofthesamebrineshrimpspeciesfromdifferentgeographicalareascandiffersubstantiallyintheirnutritionalvalue,contaminants,andacceptabilityasacompletefoodforthelifestageofthespeciestowhichtheyarefed(3-8).Theresultsofatoxicitytestcandependonthebrineshrimpnaupliiusedasfood(9).Itisdesirabletodeterminepriortousewhetheraparticularbatchofbrineshrimpisofadequatequalityforthetestorganisms.Theprimaryrequirementsofacceptablebrineshrimparethattheyareanappropriatesizeforthetestorganisms,haveadequatenutritionalvalue,anddonotcontainexcessiveconcentrationsofcontaminants.Whetheragivenlotofbrineshrimpmeetstheserequirementsforagivenspeciescanonlybedeterminedbyafeedingassay.Standardizationofthehatching,harvesting,testing,andusingofbrineshrimpwillprobablyincreasethereproducibilityofresultsoftoxicitytestswithsometestspeciesbydecreasingtheuseofunhealthyorganismscausedbyfeedingthempoorqualitybrineshrimp.1.1Thispracticedescribesproceduresforhatching,harvesting,andtestingtheacceptabilityofbrineshrimpnaupliiforuseasafoodforcertainfishandinvertebratespeciesthatareusedinaquatictoxicitytests.Theterm"brineshrimp"referstoallspeciesinthegenusArtemia()althoughthispracticespecificallydealsonlywiththosespeciesforwhichcysts(encystedembryos)arecommerciallyavailable.1.2Theseproceduresareapplicabletoallbrineshrimpnaupliithatareobtainedbyincubatingcommerciallyavailablecysts.Withappropriateprocessing,cystscollectedbynoncommercialharvesterscanbesubjectedtothesesameprocedures.1.3Modificationoftheseproceduresmightbejustifiedbyspecialneedsorcircumstances.1.4Thispracticeisorganizedasfollows:1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardstatementsaregiveninSection6.
【中国标准分类号】:Z16
【国际标准分类号】:
【页数】:6P.;A4
【正文语种】:


基本信息
标准名称:电子设备用固定电容器 第九部分:空白详细规范:2类瓷介固定电容器 评定水平E(可供认证用)
中标分类: 电子元器件与信息技术 >> 电子元件 >> 电容器
替代情况:被GB/T 5969-1996代替
发布日期:1900-01-01
实施日期:1986-12-01
首发日期:1900-01-01
作废日期:1900-01-01
出版日期:1900-01-01
页数:8页
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所属分类: 电子元器件与信息技术 电子元件 电容器