Product Code:SAE AIR1667
Title:Rotor Blade Electrothermal Ice Protection Design Considerations
Issuing Committee:Ac-9c Aircraft Icing Technology Committee
Scope:This Aerospace Information Report (AIR) identifies and summarizes the various factors that should be considered during design, development, certification, or testing of helicopter rotor blade ice protection. Although various concepts of ice protection are mentioned in this report, the text is limited generally to those factors associated with design and substantiation of cyclic electrothermal ice protection systems as applicable to the protection of helicopter rotor blades. Other systems are described briefly in Appendix A. Applications consider main rotor blades, conventional tail rotor blades, and other types of antitorque devices. The information contained in this report is also limited to the identification of factors that should be considered and why the factor is important. Specific design, analysis and test methodologies are not included.
【英文标准名称】:StandardPracticeforTonnageCalculationofCoalinaStockpile
【原文标准名称】:计算料堆中煤吨数的标准实施规程
【标准号】:ASTMD6542-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:D05.07
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:煤;计算
【英文主题词】:density;stockpile;tonnage;tons;volume
【摘要】:Thephysicalinventoryoftonsofcoalinastockpile,ascalculatedbythispractice,maybeusedforaccountingandtaxpurposes.Theinventoryresultsmaybecomparedtootherestimatesoftheinventory,suchas:4.2.1Tonsfromapreviousinventorylesstonsshippedorconsumed.4.2.2Tonsestimatedtohavebeenreceived(fromconveyor,railortruckweights)lesstonsshippedorconsumed.1.1Thispracticeisusedtocalculatethemass(commonlyexpressedintons)ofcoalinastoragepileusingthevolumeofthestockpilebyTestMethodD6172andthedensityofthecoaldeterminedbyTestMethodD6347/D6347M.1.2Thispracticeisapplicabletoallranksofcoal.1.3Theuserofthisstandarddetermineswhenthedensityvaluesprovidedbythesurveyrequireanadjustmentformoisture.1.4Thevaluesstatedineitherinch-poundsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemscanresultinnonconformancewiththespecification.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:D21
【国际标准分类号】:73_040
【页数】:2P.;A4
【正文语种】:
基本信息
| 标准名称： | 化学试剂 还原高锰酸钾物质测定通则 |
| 英文名称： | Chemical reagent-General rules for the determination of permanganate-reducing substances |
| 中标分类： |
化工 >>
化学试剂 >>
化学试剂综合 |
| ICS分类： |
化工技术 >>
分析化学 >>
化学试剂
|
| 替代情况： | 被GB/T 9726-2007替代 |
| 发布部门： | 中国石油和化学工业协会 |
| 发布日期： | 1988-09-05 |
| 实施日期： | 1989-04-01 |
| 首发日期： | 1988-09-05 |
| 作废日期： | 2008-04-01 |
| 主管部门： | 中国石油和化学工业协会 |
| 归口单位： | 全国化学标准化技术委员会 |
| 起草单位： | 北京化学试剂所 |
| 出版日期： | 1900-01-01 |
| 页数： | 3页 |
适用范围
备注：
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类： 化工 化学试剂 化学试剂综合 化工技术 分析化学 化学试剂