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BS 5944-1-1992 液压动力系统和部件气动噪声测量.第1部分:液压泵试验方法

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【英文标准名称】:Measurementofairbornenoisefromhydraulicfluidpowersystemsandcomponents-Methodoftestforpumps
【原文标准名称】:液压动力系统和部件气动噪声测量.第1部分:液压泵试验方法
【标准号】:BS5944-1-1992
【标准状态】:现行
【国别】:英国
【发布日期】:1992-12-15
【实施或试行日期】:1992-12-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:标准差;噪声;误差;液压设备;声试验;声测量;等级(质量);测量特征;声学试验;声学测量;液压传动系统;声强;位置;试验设备;试验条件;泵
【英文主题词】:Acousticmeasurement;Acoustictesting;Acoustics;Airbornenoise;Airbornesound;Determination;Fluidtechnology;Hydraulicequipment;Hydraulicfluidpower;Hydraulicpumps;Hydraulictransmissionsystems;Hydraulics;Measurementofairbornenoise;Noise(environmental);Pumps;Testing;Tests
【摘要】:ThispartofISO4412establishesatestcodede-scribingprocedures,basedonISO2204,forthede-terminationofthesoundpowerlevelsofahydraulicfluidpowerpump,undercontrolledconditionsofin-stallationandoperation,suitableforprovidingaba-sisforcomparingthenoiselevelsofpumpsintermsof:—A-weightedsoundpowerlevel;—octavebandsoundpowerlevels.Fromthesesoundpowerlevels,ifrequired,refer-encesoundpressurelevelsmaybecalculatedforreportingpurposesinaccordancewithannexA.Forgeneralpurposes,thefrequencyrangeofinter-estincludestheoctavebandswithcentrefre-quenciesbetween125Hzand8000Hz..GuidelinesfortheapplicationofthispartofISO4412aregiveninannexC.ThispartofISO4412isapplicabletoalltypesofhydraulicfluidpowerpumpsoperatingundersteady-stateconditions,irrespectiveofsize,exceptforanylimitationsimposedbythesizeofthetestenvironment(seeclause5).note:1)1Hz=1s
【中国标准分类号】:J20
【国际标准分类号】:17_140_20;23_100_10
【页数】:28P.;A4
【正文语种】:英语


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【英文标准名称】:Animalandvegetablefatsandoils;determinationofultravioletabsorbance
【原文标准名称】:动植物脂肪和油.紫外线吸收率的测定
【标准号】:ISO3656-1989
【标准状态】:作废
【国别】:国际
【发布日期】:1989-12
【实施或试行日期】:1989-12-01
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC34
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;植物脂肪;动物脂肪;紫外线辐射;吸收率(波);植物油;油;农产品;测定;动物油;脂肪;食品
【英文主题词】:foodproducts;absorptance;animaloils;ultravioletradiation;oils;tests;fats;testing;animalfats;vegetablefats;agriculturalproducts;determination;vegetableoils
【摘要】:
【中国标准分类号】:X04;X11
【国际标准分类号】:67_200_10
【页数】:2P;A4
【正文语种】:英语


Product Code:SAE ARP577
Title:Emergency Placarding - Internal and External
Issuing Committee:S-9c Operational And Human Factors Issues Committee
Scope:This Aerospace Recommended Practice (ARP) provides criteria for the development and standardization of placards containing easily understood signs, symbols and/or instructions for locating and operating exits and emergency equipment which might be used or operated by cabin occupants and rescue personnel under emergency conditions. In addition, this ARP gives guidance in the selection and development of warning labels. The placards are intended to be seen and understood by occupants within and, in the case of external exit placards, by persons outside the airplane.