ASTM D6129-1997(2007) 通过原子吸收光谱术对发动机冷却剂浓缩物中硅的标准试验方法
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【英文标准名称】:StandardTestMethodforSiliconinEngineCoolantConcentratesbyAtomicAbsorptionSpectroscopy
【原文标准名称】:通过原子吸收光谱术对发动机冷却剂浓缩物中硅的标准试验方法
【标准号】:ASTMD6129-1997(2007)
【标准状态】:现行
【国别】:
【发布日期】:1997
【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】:D15.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:硅;原子吸收;发动机冷却剂光谱仪法
【英文主题词】:atomicabsorption;silicon;enginecoolants;spectroscopy
【摘要】:1.1Thistestmethodcoversthedeterminationofsiliconintherangefrom200to500ppminenginecoolantconcentratesbyatomicabsorption.Thismethodisasaccurateandpreciseasphotometricmethods,whilerequiringconsiderablylessoperatortimeandavoidingproblemswithreagentinstability.1.1.1Coolantswithsiliconcontentoutsideofthisrangemaybeanalyzedbythismethodbysuitablyadjustingthesamplesize.Careshouldbetakentoensurethattheglycolcontentoftheworkingstandardscorrespondstothatofthesamplesolutionbeinganalyzed.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J90
【国际标准分类号】:71_100_45
【页数】:2P.;A4
【正文语种】:
【英文标准名称】:Plasticspipesandfittings-Equipmentforfusionjointingpolyethylenesystems-Part1:Buttfusion
【原文标准名称】:塑料管材和管件聚乙烯系统的焊接设备第1部分:对接
【标准号】:ISO12176-1-1998
【标准状态】:作废
【国别】:国际
【发布日期】:1998-06
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC138
【标准类型】:()
【标准水平】:()
【中文主题词】:配件;管;聚乙烯;对接焊;焊接接头;塑料制品;塑料管;规范(验收);定义;定义;塑料;试验
【英文主题词】:Buttwelding;Definition;Definitions;Equipmentobject;Fittings;Pipes;Plasticpipes;Plastics;Plasticsproducts;Polyethylene;Specification(approval);Testing;Weldedjoints
【摘要】:ThispartofISO12176specifiestheperformancerequirementsforequipmentforbuttfusionjointingofpolyethylene(PE)pipingsystems,usingelectricheaters.Itisapplicabletomechanicalandpressure-activatedequipmentforbuttfusionjointingPEpipesandfittingsconformingtoISO4437andISO8085-2.Thenormalambient-temperaturerangeinwhichthebuttfusionmachineisintendedtooperateis-10℃to+40℃.Useoutsidethistemperaturerangewillneedtobeagreedbetweentheuserandthesupplierofthemachine.ButtfusionmachineswithanautomaticcontrolleraresubjecttoadditionalrequirementsasgiveninannexA.
【中国标准分类号】:J64
【国际标准分类号】:25_160_30
【页数】:15P;A4
【正文语种】:英语
Product Code:SAE AS4157
Title:Coupling Assemblies, Hydraulic, Self-Sealing, Quick Disconnect, 5000 and 8000 Pounds Per Square Inch, Gage
Issuing Committee:G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Scope: This specification covers the requirements for aircraft hydraulic, self-sealing, quick disconnect couplings for use in 5000 and 8000 lbf/in{sup}2 (gage) lightweight hydraulic systems.
Rationale: This specification covers the requirements for aircraft hydraulic, self-sealing, quick disconnect couplings for use in 5000 and 8000 lbf/in{sup}2 (gage) lightweight hydraulic systems.