EN 130-1984 门的试验方法.通过反复扭转测试门扇的刚性变化

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Product Code:SAE AS7118
Title:Nadcap Requirements for Composites (Cancelled Jul 2008)
Issuing Committee:Ams P17 Composite Materials Committee
Scope:This Aerospace Standard (AS) establishes the requirements for suppliers of Composites to be accredited by Nadcap. Nadcap accreditation is granted in accordance with SAE AS7003 after demonstration of compliance with the requirements herein. The requirements may be supplemented by additional requirements specified by the Nadcap Composites Task Group. Using the corresponding Audit Criteria (PRI AC7118) will ensure that accredited Composites suppliers meet all of the requirements in this standard and all applicable supplementary standards and applicable AS7118 slash sheets.The purpose of this audit program is to assess a supplier's ability to consistently provide a product or service that conforms to the technical specifications and customer requirements. The corresponding audit criteria is also structured to obtain information relevant to management practices and processes that directly or indirectly affect the product or service. This information will be used in the determination of accreditation status and may be used by the supplier to guide improvements in the product or service and the associated processes.【英文标准名称】:StandardPracticeforStandardizingUltrafiltrationPermeateFlowPerformanceData
【原文标准名称】:超滤渗透流动性能数据的标准化用标准实施规程
【标准号】:ASTMD5090-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D19.08
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:渗析;过滤;标准化
【英文主题词】:nanofiltration;particulates;permeate;UF;ultrafiltration
【摘要】:DuringtheoperationofaUFsystem,conditionsincludingpressureandtemperaturecanvary,causingpermeateflowtochange(seeNote1).Toeffectivelyevaluatesystemperformance,itisnecessarytocomparepermeateflowdataatthesameconditions.Sincedatamaynotalwaysbeobtainedatthesameconditions,itisnecessarytoconverttheUFdataobtainedatactualconditionstoasetofconstantconditions,therebystandardizingthedata.Theuserofthispracticedeterminesthestandardconditions.ThispracticegivestheproceduretostandardizeUFdataonpurewateronly.Note18212;Feedconcentration,crossflowvelocity,andbothdeviceandtotalsystemrecoverywillalsoinfluencepermeaterate,especiallywhenoperatingonotherthanpurewater.Thispracticedoesnotaddressthosesystemconditions.Thispracticecanbeusedforsystemswhichcontainspiral-wound,tubular,plateandframe,andhollowfiberdevices.Thispracticecanbeusedforasingle-elementoramulti-elementsystem.However,iftheUFsystemisstaged,standardizethepermeateflowandsaltpassageforeachstageseparately.Thisrequirespressurereadingsatthefeedinletandconcentrateoutletofeachstage.ThispracticeisapplicableforUFsystemswithnosignificantleaksbetweenthefeed/concentrateandpermeatestreams.Thispracticeassumesnosignificantosmoticpressuredifferential(x0394;x03C0;)existsintheUFsystemundertheactualoperatingconditions.Differentialosmoticpressurewillreducethepermeateraterelativetooperationonpurewater.TheuserofthispracticeshouldbeawarethatfouledUFdeviceswillproducelesspermeateflowthannonfouleddevices,andmaywishtoperformflushing,chemical,ormechanicalcleaning,orcombinationthereof,priortodeterminingthepermeateflowperformanceofthedevice.1.1Thispracticecoversthestandardizationofpermeateflowforultrafiltration(UF)systems.1.2Thispracticeisapplicabletonaturalwatersincludingbrackishwaters,seawaters,andultrapurewatersincludingthoseusedinpowergenerationandmicroelectronicsandpharmaceuticalsproduction.Itisnotnecessarilyapplicabletowastewaters.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N12
【国际标准分类号】:11_040_20;17_120_10
【页数】:2P.;A4
【正文语种】: