SC/T 8101-1994 钢丝网水泥海洋渔船建造规程
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基本信息
标准名称: | 钢丝网水泥海洋渔船建造规程 |
中标分类: |
船舶 >>
船舶总体 >>
渔船总体 |
替代情况: | 替代SC/Z 101-82 |
发布部门: | 中华人民共和国农业部 |
发布日期: | 1994-10-01 |
实施日期: | 1995-01-01 |
首发日期: | |
作废日期: | |
提出单位: | 全国渔船标准化技术委员会 |
起草单位: | 华南理工大学船舶与海洋工程系 |
起草人: | 李士恩 |
出版社: | 中国标准出版社 |
出版日期: | 1995-01-01 |
页数: | 95页 |
适用范围
本规程规定了钢丝网水泥海洋渔船船体强度计算、结构型式、尺寸、配筋及材料工艺要求。
本规程适用于船长L不超过40 m的单甲板、单底的横骨架结构的钢丝网水泥海洋渔船的建造。
对于其他海洋渔业辅助运输的钢丝网水泥船,也可参照本规程有关规定进行结构设计。
前言
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目录
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引用标准
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所属分类: 船舶 船舶总体 渔船总体
【英文标准名称】:LABORATORYGLASSWARE.BOTTLES.
【原文标准名称】:实验室用玻璃器皿.小瓶
【标准号】:NFB35-010-1983
【标准状态】:作废
【国别】:法国
【发布日期】:1983-07
【实施或试行日期】:1983-06-21
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:尺寸;烧瓶;体积;实验室设备;产品规范;设备规范;实验室玻璃器皿;烧瓶(实验室);容量;作标记
【英文主题词】:
【摘要】:
【中国标准分类号】:N64
【国际标准分类号】:71_040_20
【页数】:3P;A4
【正文语种】:其他
【英文标准名称】:StandardPracticeforEvaluatingthePerformanceofDiffusiveSamplers
【原文标准名称】:评价扩散采样器性能的标准实施规程
【标准号】:ASTMD6246-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008-01-01
【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】:D22.04
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:accuracy;airmonitoring;bias;concentration;diffusive;evaluation;gases;passive;performance;precision;samplingandanalysis;samplers;tests;uncertainty;vapors;workplaceatmospheres;Airmonitoring;Concentration(ofelements);
【摘要】:Gasorvaporsamplingisoftenaccomplishedbyactivelypumpingairthroughacollectionmediumsuchasactivatedcharcoal.Problemsassociatedwithapumpx2013;inconvenience,inaccuracy,andexpensex2013;areinextricablefromthistypeofsampling.Thealternativecoveredbythispracticeistousediffusionformovingthecompoundofinterestontothecollectionmedium.Thisapproachtosamplingisattractivebecauseoftheconvenienceofuseandlowtotalmonitoringcost.However,previousstudieshavefoundsignificantproblemswiththeaccuracyofsomesamplers.Therefore,althoughdiffusivesamplersmayprovideaplethoraofdata,inaccuraciesandmisuseofdiffusivesamplersmayyetaffectresearchstudies.Furthermore,workerprotectionsmaybebasedonfaultyassumptions.Theaimofthispracticeistocountertheuncertaintiesindiffusivesamplingthroughachievingabroadlyacceptedsetofperformancetestsandacceptancecriteriaforprovingtheefficacyofanygivendiffusivesamplerintendedforuse.1.1Thispracticecoverstheevaluationoftheperformanceofdiffusivesamplersofgasesandvaporsforuseoversamplingperiodsfrom4to12handforwindspeedslessthan0.5m/s.Suchsamplingperiodsandwindspeedsarethemostcommonintheindoorworkplacesetting.Thispracticedoesnotapplytostaticorareasamplinginwindspeedslessthan0.1m/s,whendiffusionoutsidethesamplermaydominateneededconvectionfromtheambientairtothevicinityofthesampler.Givenasuitableexposurechamber,thepracticecanbeextendedtocoversampleruseforothersamplingperiodsandconditions.Theaimistoprovideaconcisesetofexperimentsforclassifyingsamplersprimarilyinaccordancewithasinglesampleraccuracyfigure.Accuracyisdefined(3.2.1)inthisstandardsoastotakeintoaccountbothimprecisionanduncorrectedbias.Accuracyestimatesrefertoconditionsofsamplerusewhicharenormallyexpectedinaworkplacesetting.Theseconditionsmaybecharacterizedbythetemperature,atmosphericpressure,humidity,andambientwindspeed,noneofwhichmaybeconstantoraccuratelyknownwhenthesamplerisusedinthefield.Futhermore,theaccuracyaccountsfortheeffectsofdiffusivelossofanalyteontheestimationoftime-weightedaveragesofconcentrationswhichmaynotbeconstantintime.Asidefromaccuracy,thesamplersaretestedforcompliancewiththemanufacturer''sstatedlimitsoncapacity,possiblyinthepresenceofinterferingcompounds.1.2Thispracticeisanextensionofpreviousresearchondiffusivesamplers(1-14)aswellasPracticesD4597,D4598,D4599,andMDHS27.Anessentialadvancehereistheestimationofsampleraccuracyunderactualconditionsofuse.Futhermore,thecostsofsamplerevaluationarereduced.1.3Knowledgegainedfromsimilaranalytesexpeditessamplerevaluation.Forexample,interpolationofdatacharacterizingthesamplingofanalytesatseparatedpointsofahomologousseriesofcompoundsisrecommended.Atpresenttheprocedureof(9)issuggested.Followingevaluationofasamplerinuseatasinglehomologousseriesmemberaccordingtothepresentpractice,highermolecularweightmemberswouldreceivepartialvalidationsconsideringsamplingrate,capacity,analyticalrecovery,andinterferences.Thetestfordiffusiveanalytelosscanbeomittediftheeffectisfoundnegligibleforagivensampleroranalyteseries.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurportt......
【中国标准分类号】:C70
【国际标准分类号】:13_040_30
【页数】:8P.;A4
【正文语种】:英语