• <li id="ccaac"></li>
  • <table id="ccaac"><rt id="ccaac"></rt></table>
  • <td id="ccaac"></td>
  • <td id="ccaac"></td>
  • ISO 24254:2007
    潤滑劑、工業用油和相關產品(L級).E族(內燃機油).四沖程循環摩托車汽油發動機和相關動力傳動系統用油的規范(EMA和EMB類)

    Lubricants, industrial oils and related products (class L) - Family E (internal combustion engine oils) - Specifications for oils for use in four-stroke cycle motorcycle gasoline engines and associated drivetrains (categories EMA and EMB)


    標準號
    ISO 24254:2007
    發布
    2007年
    發布單位
    國際標準化組織
    當前最新
    ISO 24254:2007
     
     
    引用標準
    ISO 20844 ISO 3987 ISO 6247 JASO T904
    適用范圍
    This International Standard specifies the requirements of lubricating engine oils (hereinafter referred to as “four-stroke engine oils”) to be used in four-stroke cycle spark ignition gasoline engines employing a common sump containing the lubricating oil for both the engine and associated drivetrain (transmission, clutch, starter) of motorcycles, motor scooters, all-terrain vehicles (ATVs) and related equipment. Classification of four-stroke engine oils is defined in ISO 6743-15 [1]. Among all of the categories covered by ISO 6743-15, this International Standard includes categories EMA and EMB. This International Standard specifies the performance classification of four-stroke cycle gasoline engine oils based on physical and chemical properties, and three friction performance indices, which are derived from the frictional properties of the lubricant, according to the JASO T904 test procedure1). NOTE For the purposes of this International Standard, the term “% (m/m)” is used to represent the mass fraction.

    推薦

    運動粘度測定儀測量意義

    粘度是潤滑油分類依據。一些種類潤滑油產品是以油品 運動粘度值劃分編號。例如,內燃機油、齒輪用油液壓系統用油 等三大潤滑油多用運動粘度來劃分牌號,其中汽油機油、柴油機油 按GB/T14906---1994《內燃機油粘度分類》劃分牌號,工業齒輪油按 50℃運動粘度劃分牌號,而普通液壓油、機械油、壓縮機油、冷凍機 油真空泵油按40℃運動粘度劃分牌號。此外,粘度對于潤滑油輸送有重要意義。...

    運動粘度對潤滑油意義

    例如,內燃機油、齒輪用油液壓系統用油 等三大潤滑油多用運動粘度來劃分牌號,其中汽油機油、柴油機油 按GB/T14906---1994《內燃機油粘度分類》劃分牌號,工業齒輪油按 50℃運動粘度劃分牌號,而普通液壓油、機械油、壓縮機油、冷凍機 油真空泵油按40℃運動粘度劃分牌號。 此外,粘度對于潤滑油輸送有重要意義。當油品粘度增大時, 輸送壓力便要增加。 也是工藝計算主要參考數據之一。...

    運動粘度測定對潤滑油意義

    噴氣發動機燃料及柴油燃料重要指標之一。粘度是潤滑油分類依據。一些種類潤滑油產品是以油品運動粘度值劃分編號。例如,內燃機油、齒輪用油液壓系統用油等三大潤滑油多用運動粘度來劃分牌號,其中汽油機油、柴油機油按GB/T14906---1994《內燃機油粘度分類》劃分牌號,工業齒輪油按 50℃運動粘度劃分牌號,而普通液壓油、機械油、壓縮機油、冷凍機 油真空泵油按40℃運動粘度劃分牌號。...


    誰引用了ISO 24254:2007 更多引用





    Copyright ?2007-2022 ANTPEDIA, All Rights Reserved
    京ICP備07018254號 京公網安備1101085018 電信與信息服務業務經營許可證:京ICP證110310號

  • <li id="ccaac"></li>
  • <table id="ccaac"><rt id="ccaac"></rt></table>
  • <td id="ccaac"></td>
  • <td id="ccaac"></td>
  • 床戏视频