基本信息
标准名称: | 谷氨酸钠(99%味精) |
英文名称: | Monosodium L-glutamate (99% Wei Jing) |
中标分类: |
食品 >>
食品发酵、酿造 >>
调味品 |
ICS分类: |
食品技术 >>
香料和调料、食品添加剂 >>
香料和调料
|
替代情况: | GB/T 8967-1988 |
发布部门: | 国家质量技术监督局 |
发布日期: | 2000-04-05 |
实施日期: | 2000-09-01 |
首发日期: | 1988-04-07 |
作废日期: | 2007-12-01 |
主管部门: | 国家标准化管理委员会 |
归口单位: | 全国食品工业标准化技术委员会 |
起草单位: | 沈阳味精厂 |
出版社: | 中国标准出版社 |
出版日期: | 2004-07-19 |
页数: | 平装16开, 页数:16, 字数:27千字 |
书号: | 155066.1-16793 |
适用范围
本标准规定了谷氨酸钠(99%味精)的定义、技术要求、试验方法、检验规则和标志、包装、运输、贮存要求。本标准适用于谷氨酸钠含量不低于99%的产品。
前言
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目录
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引用标准
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所属分类: 食品 食品发酵 酿造 调味品 食品技术 香料和调料 食品添加剂 香料和调料
【英文标准名称】:StandardTestMethodforAcceleratedTensileCreepandCreep-RuptureofGeosyntheticMaterialsBasedonTime-TemperatureSuperpositionUsingtheSteppedIsothermalMethod
【原文标准名称】:使用阶段等温法对基于时间-温度叠加的土工合成材料的加速拉伸蠕变和蠕变断裂的标准试验方法
【标准号】:ASTMD6992-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:D35.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:creep;creep-rupture;geosynthetics;rampandholdtest;rapidloadingtensiletest;steppedisothermalmethod;time-temperaturesuperposition
【摘要】:UseoftheSteppedIsothermalMethoddecreasesthetimerequiredforcreeptooccurandtheobtainingoftheassociateddata.Thestatementssetforthin1.7areveryimportantinthecontextofsignificanceanduse,aswellasscopeofthestandard.Creeptestdataareusedtocalculatethecreepmodulusofmaterialsasafunctionoftime.Thesedataarethenusedtopredictthelong-termcreepdeformationexpectedofgeosyntheticsusedinreinforcementapplications.Note18212;Currently,SIMtestinghasfocusedmainlyonwovenandknittedgeogridsandwovengeotextilesmadefrompolyester,aramid,polyaramid,poly-vinylalcohol(PVA)andpolypropyleneyarnsandnarrowstrips.Additionalcorrelationstudiesonothermaterialsareneeded.Creeprupturetestdataareusedtodeveloparegressionlinerelatingcreepstresstorupturetime.Theseresultspredictthelongtermrupturestrengthexpectedforgeosyntheticsinreinforcementapplications.Tensiletestingisusedtoestablishtheultimatetensilestrength(TULT)ofamaterialandtodetermineelasticstress,strainandvariationsthereofforSIMtests.RampandHold(R+H)testingisdonetoestablishtherangeofcreepstrainsexperiencedinthebriefperiodofveryrapidresponsefollowingthepeakoftheloadramp.1.1Thistestmethodcoversacceleratedtestingfortensilecreep,andtensilecreep-rupturepropertiesusingtheSteppedIsothermalMethod(SIM).1.2Thetestmethodisfocusedongeosyntheticreinforcementmaterialssuchasyarns,ribsofgeogrids,ornarrowgeotextilespecimens.1.3TheSIMtestsarelaterallyunconfinedtestsbasedontime-temperaturesuperpositionprocedures.1.4TensiletestsaretobecompletedbeforeSIMtestsandtheresultsareusedtodeterminethestresslevelsforsubsequentSIMtestsdefinedintermsofthepercentageofUltimateTensileStrength(TULT).Additionally,thetensiletestcanbedesignedtoprovideestimatesoftheinitialelasticstraindistributionsappropriatefortheSIMresults.1.5RampandHold(R+H)testsmaybecompletedinconjunctionwithSIMtests.TheyaredesignedtoprovideadditionalestimatesoftheinitialelasticandinitialrapidcreepstrainlevelsappropriatefortheSIMresults.1.6ValuesstatedinSIunitsaretoberegardedasstandard.Thecommonunitsgiveninparenthesesareforinformationonly.1.7Thismethodcanbeusedtoestablishthesustainedloadcreepandcreep-rupturecharacteristicsofageosynthetic.ResultsofthismethodaretobeusedtoaugmentresultsofTestMethodD5262andmaynotbeusedasthesolebasisfordeterminationoflongtermcreepandcreep-rupturebehaviorofgeosyntheticmaterial.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W59
【国际标准分类号】:59_080_70
【页数】:9P.;A4
【正文语种】: