SAE AIR1850 Twin Engine Helicopter Power Requirements

作者:标准资料网 时间:2024-05-22 14:10:47   浏览:9911   来源:标准资料网
下载地址: 点击此处下载
Product Code:SAE AIR1850
Title:Twin Engine Helicopter Power Requirements
Issuing Committee:S-12 Helicopter Powerplant Committee
Scope: The purpose of this document is to define the power spectrum during normal and emergency operations of a twin engine helicopter and thereby to postulate suitable power plant rating structures. The document does not address the power requirements for single engine helicopters or those with more than two engines.
下载地址: 点击此处下载
【英文标准名称】:StandardTestMethodforUltravioletAbsorbanceandAbsorptivityofPetroleumProducts
【原文标准名称】:石油产品紫外线吸收率和吸收系数的标准试验方法
【标准号】:ASTMD2008-1991(2006)
【标准状态】:现行
【国别】:
【发布日期】:1991
【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】:D02.04.0F
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:紫外线辐射;紫外线;润滑剂;紫外线吸收;石油产品;试验
【英文主题词】:petroleumproducts;ultravioletabsorbance;ultravioletabsorptivity;ultravioletspectroscopy
【摘要】:Theabsorbanceofliquidsandtheabsorptivityofliquidandsolidsatspecifiedwavelengthsintheultravioletareusefulincharacterizingpetroleumproducts.1.1Thistestmethodcoversthemeasurementoftheultravioletabsorptionofavarietyofpetroleumproducts.Itcoverstheabsorbanceofliquidsortheabsorptivityofliquidsandsolids,orboth,atwavelengthsintheregionfrom220to400nmofthespectrum.1.2Theuseofthistestmethodimpliesthattheconditionsofmeasurement-wavelength,solvent(ifany),samplepathlength,andsampleconcentration-arespecifiedbyreferencetooneoftheexamplesoftheapplicationofthistestmethodintheannexesorbyastatementofotherconditionsofmeasurement.1.3Examplesoftheapplicationofthistestmethodarethedeterminationoftheabsorbanceofwhitemineraloil,theabsorptivityofrefinedpetroleumwax,andtheabsorptivityofUSPpetrolatum.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesstatedinfahrenheit,feet,andinches,indicatedinparentheses,areforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificwarningstatements,see7.3.1,7.3.3,and13.4.
【中国标准分类号】:E30
【国际标准分类号】:75_080
【页数】:8P.;A4
【正文语种】: