SAE AS4468 Hose Assembly, 125 psi, Lined Silicone, Potable Water, Procurement Specification
时间:2024-05-15 23:57:04 来源: 标准资料网 作者：标准资料网 阅读：8366
Product Code:SAE AS4468
Title:Hose Assembly, 125 psi, Lined Silicone, Potable Water, Procurement Specification
Issuing Committee:G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Scope: This SAE Aerospace Standard (AS) covers the requirements for a flexible, lightweight, low pressure, self-extinguishing, silicone hose assembly. The hose has a fully fluorinated fluoropolymer inner liner and is primarily intended for use in aircraft potable water systems.
【英文标准名称】:StandardTestMethodsforNickelinWater
【原文标准名称】:水中镍含量的标准测试方法
【标准号】:ASTMD1886-2003
【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】:(TestMethod)
【标准水平】:()
【中文主题词】:含量测定;镍;水;试验
【英文主题词】:atomicabsorption;chelation;graphitefurnace;nickel;water;
【摘要】:Elementalconstituentsinpotablewater,receivingwater,andwastewaterneedtobeidentifiedforsupportofeffectivepollutioncontrolprograms.TestMethodsA,B,andCprovidethetechniquesnecessarytomakesuchmeasurements.NickelisconsideredtoberelativelynontoxictomanandalimitfornickelisnotincludedintheEPANationalInterimPrimaryDrinkingWaterRegulations.7Thetoxicityofnickeltoaquaticlifeindicatestolerancesthatvarywidelyandthatareinfluencedbyspecies,pH,synergisticeffects,andotherfactors.Nickelisasilver-whitemetallicelementseldomoccur-ringinnatureintheelementalform.Nickelsaltsaresolubleandcanoccurasaleachatefromnickel-bearingores.Nickelsaltsareusedinmetal-platingandmaybedischargedtosurfaceorgroundwaters.1.1Thesetestmethodscovertheatomicabsorptiondeterminationofnickelinwaterandwastewaters.Threetestmethodsaregivenasfollows:ConcentrationRangeSectionsTestMethodA-AtomicAbsorption,Direct0.1to10mg/L7-16TestMethodB-AtomicAbsorption,Chelation-Extraction10to1000956;g/L17-26TestMethodC-AtomicAbsorption,GraphiteFurnace5to100956;g/L27-361.2TestMethodsA,B,andChavebeenusedsuccessfullywithreagentgradewaterandnaturalwaters.EvaluationofTestMethodCwasalsomadeincondensatefromamediumBtucoalgasificationprocess.Itistheuser'sresponsibilitytoensurethevalidityofthesetestmethodsforothermatrices.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardsstatements,seeNote4,11.7.1,21.9,23.7,and23.10.Twoformercolorimetrictestmethodswerediscontinued.RefertoAppendixX1forhistoricalinformation.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:11P.;A4
【正文语种】:
【英文标准名称】:Aerospaceseries-Circuitbreakers,three-pole,temperaturecompensated,ratedcurrents2Ato25A,switchingcapacity65In-Part001:technicalspecification.
【原文标准名称】:航空航天系列.开断容量为65In、额定电流为2A至25A的温度补偿三极断路器.第001部分:技术规范
【标准号】:NFL58-450-001-1999
【标准状态】:现行
【国别】:法国
【发布日期】:1999-10-01
【实施或试行日期】:1999-10-30
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:V40
【国际标准分类号】:49_060
【页数】:9P;A4
【正文语种】:其他