Product Code:SAE AIR1845
Title:Procedure for the Calculation of Airplane Noise in the Vicinity of Airports
Issuing Committee:A-21 Aircraft Noise Measure Noise Aviation Emission Modeling
Scope: This Aerospace Information Report (AIR) describes procedures for calculating sound exposure levels at ground locations resulting from operations of jet and propeller driven airplanes in the vicinity of an airport. The procedures assume that reference noise and performance data are available for each airplane involved. The fundamental element of the procedures is a method for calculating the A-weighted sound exposure level (SEL) that would be produced, on average, by any specific airplane when performing any specified operation. Procedures are given for calculating sound exposure levels for individual airplane operations and for the average sound level produced by the cumulative effect of a series of different airplane operations, normally expressed in terms of day-night average sound level (DNL) averaged over an appropriate long time period. The principal purpose of using the procedures recommended in this AIR to calculate contours of equal average sound levels is to assist in land-use planning around airports. Contours of equal sound level may be constructed by connecting lines through individual points of constant sound level. While the procedures of this AIR describes the computation of sound levels at any point in the vicinity of an airport, the procedure for calculation of contours is computer-program dependent and is not a part of this AIR.【英文标准名称】:Foodprocessingmachinery-Beammixers-Safetyandhygienerequirements;GermanversionEN12854:2003
【原文标准名称】:食品加工机械.臂式搅拌机.安全和卫生要求
【标准号】:DINEN12854-2003
【标准状态】:作废
【国别】:德国
【发布日期】:2003-09
【实施或试行日期】:2003-09-01
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:大桶;混合器;食品搅拌器;试验;人类工效学;安全措施;肉;用户信息;食品工业;灌装设备;机械工程;食品料;厨房器具;安全工程;危害;安全;可清除干净特性;操作说明书;定义;食品机;机器;给养设备;安全要求;噪声测量;卫生学;危险;规范(验收);使用说明;辅助机械;臂式搅拌机;食品
【英文主题词】:Anatomicalconfigurations;Auxiliarymachines;Beammixers;Biologicalhazards;Cateringequipment;Cleanability;Cleaning;Contactsafetydevices;Currents;Cutting;Danger;Definitions;Drawing-in;Earthing;Electriccontactprotection;Electriccontacts;Electricalequipment;Electricalsafety;Electromagneticcompatibility;Electromagnetism;EMC;Enclosures;Ergonomics;Fatigue;Fillingplants;Foodmixers;Foodproducts;Foodstuff;Foodstuffmachine;Hazards;Hearing(auditoryperception);Hygiene;Impact;Instructionsforuse;Kitchenutensils;Machines;Meat;Mechanicalcrimping;Mechanicalengineering;Mixers;Noise;Noise(environmental);Noisemeasurements;Operatinginstructions;Provisionindustry;Safety;Safetyengineering;Safetymeasures;Safetyrequirements;Sound;Specification(approval);Stability;Stress;Testing;Userinformation;Vats
【摘要】:ThisEuropeanstandardspecifiesthesafetyandhygienerequirementsforthedesignandmanufactureofbeammixers.Beammixersareusedinthecateringindustryforthepreparationofmixtureoremulsion,directlyinthecookingpan,suchasfor:puree,mayonnaise,sauces,soups,compotes.
【中国标准分类号】:X90
【国际标准分类号】:67_260
【页数】:40P.;A4
【正文语种】:德语