Product Code:SAE J351
Title:Oil-Tempered Carbon-Steel Valve Spring Quality Wire and Springs (Cancelled Jun 1998)
Issuing Committee:Metals Technical Executive Steering Committee
Scope:This SAE Recommended Practice covers the physical and chemical requirements of oil- tempered carbon-steel valve spring quality wire used for the manufacture of engine valve springs and other springs requiring high-fatigue properties. This document also covers the processing requirements of springs fabricated from this wire.【英文标准名称】:Fineceramics(advancedceramics,advancedtechnicalceramics)-DeterminationofspecificsurfaceareaofceramicpowdersbygasadsorptionusingtheBETmethod
【原文标准名称】:精细陶瓷(高级陶瓷、高级工业陶瓷).利用BET法的气体吸收率测定陶瓷粉末的比表面积
【标准号】:BSENISO18757-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-12-29
【实施或试行日期】:2006-12-29
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:高级工业陶瓷;BET法;陶瓷;陶瓷粉末;定义;测定;尺寸;气体吸收;材料;材料试验;测量;机械试验;氮;粒状材料;粉末;试样制备;表面;试验方法;试验
【英文主题词】:
【摘要】:ISO18757:2003providesguidelinesforthedeterminationofthetotalspecificexternalandinternalsurfaceareaofdisperseorporous(porediametergreaterthan2nm)fineceramicmaterialsbymeasuringtheamountofphysicallyadsorbedgasaccordingtothemethodofBrunauer,EmmettandTeller(BETmethod).ThisInternationalStandardonlyfocusesonspecificdetailsrelevanttofineceramicmaterials.ItshouldfurtherbenotedthattheBETmethodcannotbeappliedtotypeIisotherms(microporousmaterialsorchemisorptionbehaviour)orwhenthesolidadsorbsthemeasuringgas
【中国标准分类号】:Q32
【国际标准分类号】:81_060_30
【页数】:20P;A4
【正文语种】:英语