HB 3137-1987 带轮轴牵引杆
作者:标准资料网 时间:2024-05-14 11:57:22 浏览:9718
来源:标准资料网
基本信息
标准名称: | 带轮轴牵引杆 |
中标分类: |
航空、航天 >>
航空运输与地面设备 >>
机场地面服务系统及设备 |
替代情况: | HB 3137-78;被HB 3137-2000代替 |
发布日期: | 1987-11-23 |
实施日期: | 1988-01-01 |
首发日期: | |
作废日期: | |
出版日期: | |
页数: | 4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: 航空 航天 航空运输与地面设备 机场地面服务系统及设备
【英文标准名称】:StandardPracticeforCalculationofSupersaturationofBariumSulfate,StrontiumSulfate,andCalciumSulfateDihydrate(Gypsum)inBrackishWater,Seawater,andBrines
【原文标准名称】:微咸水、海水及盐水中硫酸钡、硫酸锶和无水硫酸钙(石膏)超饱和度计算的标准实施规程
【标准号】:ASTMD4328-2003
【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(ASTM)
【起草单位】:D19.05
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:水;工艺;硫酸钡;卤水(防腐剂);锶;含量测定;数学计算;海水;饱和
【英文主题词】:bariumsulfate;brines;calciumsulfatedihydrate;strontiumsulfate;
【摘要】:Thispracticecoversthemathematicalcalculationofthesupersaturationofthreeprincipalsulfatescalingcompoundsfoundinindustrialoperations.Applicationofthisstandardpracticetothepredictionofscaleformationinagivensystem,however,requiresexperience.Thecalculationstelltheuserifawater,ormixtureofwaters,isinascalingmode.Whetherornotscalewillinfactform,howquicklyitwillform,whereitwillform,inwhatquantities,andwhatcompositionaresubjecttofactorsbeyondthescopeofthispractice.However,basedonhowsupersaturatedagivenwaterormixtureofwatersis,anobjectiveevaluationoftherelativelikelihoodofscaleformationcanbemade.Note18212;Thereareseveralpersonalcomputer(PC)typeprogramsthatarebothavailablecommerciallyandpubliclythatwillperformthesecalculations.1.1Thispracticecoversthecalculationofsupersaturationofbariumsulfate,strontiumsulfate,andcalciumsulfatedihydrate(gypsum)inbrackishwater,seawater,andbrinesinwhichbarium,strontium,andcalciumionseithercoexistorexistindividuallyinsolutioninthepresenceofsulfateions.1.2Thispracticeisnotapplicableforcalculatingcalciumsulfatedihydratesupersaturationifthetemperaturesofsalinewatersunderinvestigationexceed95176;C.Attemperaturesabove95176;C,hemianhydrateandanhydritewouldbemajorinsolubleforms.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_30
【页数】:6P.;A4
【正文语种】:
【英文标准名称】:Concrete-Part2:Specificationofconstituentmaterials,productionofconcreteandcomplianceofconcrete
【原文标准名称】:混凝土.第2部分:组分材料的规范、混凝土的生产和混凝土的柔度
【标准号】:ISO22965-2-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-04
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC71
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThispartofISO22965appliestoconcreteforstructurescastinsitu,pre-caststructuresandstructuralpre-castproductsforbuildingsandcivilengineeringstructures.Theconcretecanbemixedonsite,ready-mixedconcreteorproducedinaplantforpre-castconcreteproducts.ThispartofISO22965appliestoconcretecompactedtoretainnoappreciableamountofentrappedairotherthanentrainedairandtonormal-weight,heavy-weightandlight-weightconcrete.OtherInternationalStandardsforspecificproducts,e.g.pre-castproducts,orforprocesseswithinthefieldofthescopeofthisstandardcanrequireorpermitdeviationsfromthispartofISO22965.ThispartofISO22965specifiesthepropertiesofconstituentmaterials,theproductionofconcreteandthecompliancesystemofconcrete.ThispartofISO22965doesnotapplyto-concretewithamaximumaggregatesizeequaltoorlessthan4mmor5mm(mortar),-aeratedconcrete,-foamedconcrete,-concretewithanopenstructure(“no-fineaggregate”concrete),-concretewithadensitylessthan800kg/m3,-refractoryconcrete.ThispartofISO22965doesnotcoverhealthandsafetyrequirementsfortheprotectionofworkersduringproductionanddeliveryofconcrete.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:41P;A4
【正文语种】:英语