【英文标准名称】:Productsandsystemsfortheprotectionandrepairofconcretestructures-Testmethods-Compatibilityofinjectionproducts-Part1:Compatibilitywithconcrete;GermanversionEN12637-1:2004
【原文标准名称】:混凝土结构的保护和维修用产品和系统.试验方法.注入产品的兼容性.第1部分:与混凝土的兼容性
【标准号】:EN12637-1-2004
【标准状态】:现行
【国别】:
【发布日期】:2004-11
【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】:保护系统;水污染;检修;聚氨酯;强碱;裂开;保护(装置);兼容性;结构;粘合剂;混凝土结构;填充剂;试验;模塑材料;基准方法;表面;注入法;效应;建筑;组合钢结构;抽样方法;施工材料;覆层;混凝土;测定;裂纹;注入产品
【英文主题词】:Alkalis;Bindingagents;Coatings;Compatibility;Compositesteelconstruction;Concretestructure;Concretestructures;Concretes;Construction;Constructionmaterials;Cracking;Determination;Effects;Extenders;Flaws;Injectionmethods;Mouldingmaterials;Polyurethane;Productsforinjection;Protection;Protectionsystems;Referencemethods;Repair;Repairs;Samplingmethods;Structures;Surfaces;Testing;Waterpollution
【摘要】:
【中国标准分类号】:Q92
【国际标准分类号】:91_080_40
【页数】:10P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 轻工产品金属镀层和化学处理层的耐腐蚀试验方法 腐蚀膏试验(CORR)法 |
| 中标分类： |
综合 >>
基础标准 >>
材料防护 |
| 替代情况： | 调整为QB/T 3829-1999 |
| 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： | 2页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 综合 基础标准 材料防护
【英文标准名称】:Plastics-Determinationofwaterabsorption
【原文标准名称】:塑料吸水性的测定
【标准号】:ISO62-1999
【标准状态】:作废
【国别】:国际
【发布日期】:1999-02
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC61
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;吸水率;试验;塑料
【英文主题词】:Absorption;Absorptivity;Determination;Determinationprocedures;Humidity;Moisture;Plastics;Quantityofwater;Testpieces;Testing;Tests;Water;Waterabsorption
【摘要】:1.1ThisInternationalStandarddescribesaprocedurefordeterminingthemoistureabsorptionpropertiesinthe"through-the-thickness"directionofflatorcurved-formsolidplastics.ThisInternationalStandardalsodescribesproceduresfordeterminingtheamountofwaterabsorbedbyplasticspecimensofdefineddimensions,whenimmersedinwaterorwhensubjectedtohumidairundercontrolledconditions.The"through-the-thickness"moisturediffusioncoefficientcanbedeterminedforsingle-phasematerialbyassumingFickiandiffusionbehaviourwithconstantmoistureabsorptionpropertiesthroughthethicknessofthetestspecimen.Thismodelisvalidforhomogeneousmaterialsandforreinforcedpolymer-matrixcompositestestedbelowtheirglasstransitiontemperature.However,sometwo-phasematricessuchashardenedepoxiesmayrequireamulti-phaseabsorptionmodelwhichisnotcoveredbythisInternationalStandard.1.2Ideallythebestcomparisonofthewaterabsorptionpropertiesand/ordiffusioncoefficientsofmaterialsshouldbecarriedoutonlyusingtheequilibriummoisturecontentofplasticsexposedtoidenticalconditions.Thecomparisonofmaterialsusingpropertiesatmoistureequilibriumdoesnotassume,andisthereforenotlimitedto,single-phaseFickiandiffusionbehaviour.1.3Alternatively,waterabsorptionofplasticspecimensofdefineddimensionsexpqsedtoimmersionorhumidityundercontrolledconditionsbutforanarbitrarytimeperiodcanbeusedtocomparedifferentbatchesofthesamematerialorforqualitycontroltestsofagivenmaterial.Forthistypeofcomparison,itisessentialthatalltestspecimensbeofidenticaldimensionsand,asnearlyaspossible,havethesamephysicalattributes,e.g.surfacesmoothness,internalstresses,etc.However,moistureequilibriumisnotreachedundertheseconditions.Therefore,resultsfromthistypeoftestcannotbeusedtocomparethewaterabsorptionpropertiesofdifferenttypesofplastics.Forthemorereliableresults,simultaneoustestsarerecommended.1.4TheresultsobtainedusingthemethodsdescribedinthisInternationalStandardareapplicabletomostplasticsbutarenotapplicabletocellularplastics,granulates,orpowderswhichcanshowadditionalabsorptionandcapillaryeffects.Plasticsexposedtomoistureundercontrolledconditionsfordefinedperiodsoftimeproviderelativecomparisonsbetweenthem.Thetestsdescribedfordeterminationofdiffusioncoefficientmaynotbeapplicabletoallplastics.Plasticsthatcannotretaintheirshapewhenimmersedinboilingwatershouldnotbecomparedusingmethod2in6.3.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:11P;A4
【正文语种】:英语