ASTM C 121-1990 石板吸水性的试验方法
作者:标准资料网 时间:2024-05-13 11:16:33 浏览:9050
来源:标准资料网
【英文标准名称】:StandardTestMethodforWaterAbsorptionofSlate
【原文标准名称】:石板吸水性的试验方法
【标准号】:ASTMC121-1990
【标准状态】:作废
【国别】:美国
【发布日期】:1990
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;施工材料;建筑;天然石料;吸水率;砌块;石板;石
【英文主题词】:Blocks(building);Construction;Constructionmaterials;Naturalstones;Slate;Stone;Testing;Waterabsorption
【摘要】:
【中国标准分类号】:Q21
【国际标准分类号】:91_100_15
【页数】:2P;A4
【正文语种】:英语
【英文标准名称】:Thermalbridgesinbuildingconstruction-Heatflowsandsurfacetemperatures-Linearthermalbridges
【原文标准名称】:建筑结构中的热桥.热流和表面温度.线性热桥
【标准号】:BSENISO10211-2-2001
【标准状态】:作废
【国别】:英国
【发布日期】:2001-05-15
【实施或试行日期】:2001-05-15
【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】:隔热;热传递系数;建筑物热工设计;结构热工性能;热桥;热传递;热损失;数学计算;表面;温度
【英文主题词】:Buildings;Calculatingmethods;Construction;Data;Definition;Definitions;Design;Heatflow;Heatloss;Heattransfer;Heattransmission;Heatingequipment;Linear;Mathematicalcalculations;Methods;Methodsofcalculation;Models;Specification;Surfacetemperatures;Thermalbehaviourofstructures;Thermalbridges;Thermalconductivity;Thermaldesignofbuildings;Thermalinsulation;Thermalprotection
【摘要】:Thispart2ofthestandardgivesthespecificationsforatwo-dimensionalgeometricalmodelofalinearthermalbridgeforthenumericalcalculationof:-thelinearthermaltransmittanceofthelinearthermalbridge;-thelowerlimitoftheminimumsurfacetemperatures.Thesespecificationsincludethegeometricalboundariesandsubdivisionsofthemodel,thethermalboundaryconditionsandthethermalvaluesandrelationshipstobeused.Thestandardisbaseduponthefollowingassumptions:-steady-stateconditionsapply;-allphysicalpropertiesareindependentoftemperature;-therearenoheatsourceswithinthebuildingelement;-onlyoneinternalthermalenvironmentapplies;-oneortwoexternalthermalenvironmentsapply.Asecondexternalthermalenvironmentonlyapplieswhensurfacetemperaturesarecalculatedandthesoilisapartofthegeometricalmodel.Inthatcasethetemperatureatthehorizontalcut-offplaneinthesoilisthesecondexternalthermalenvironment.
【中国标准分类号】:P31
【国际标准分类号】:91_120_10
【页数】:22P;A4
【正文语种】:英语
Product Code:SAE J2041
Title:Reflex Reflectors for Use on Vehicles 2032 mm or More in Overall Width*hs-34/00*
Issuing Committee:Heavy Duty Lighting Standards Committee
Scope:This SAE Standard provides test procedures, requirements, and guidelines for reflex reflectors used on vehicles 2032 mm or more in overall width. Reflex reflectors conforming to these requirements may also be used on vehicles less than 2032 mm in overall width.
