ImageVerifierCode 换一换
格式:PDF , 页数:4 ,大小:110.63KB ,
资源ID:179459      下载积分:11 积分
快捷下载
登录下载
邮箱/手机:
温馨提示:
快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。 如填写123,账号就是123,密码也是123。
特别说明:
请自助下载,系统不会自动发送文件的哦; 如果您已付费,想二次下载,请登录后访问:我的下载记录
支付方式: 支付宝扫码支付 微信扫码支付   
验证码:   换一换

加入VIP,免费下载
 

温馨提示:由于个人手机设置不同,如果发现不能下载,请复制以下地址【https://www.wnwk.com/docdown/179459.html】到电脑端继续下载(重复下载不扣费)。

已注册用户请登录:
账号:
密码:
验证码:   换一换
  忘记密码?
三方登录: QQ登录  

下载须知

1: 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。
2: 试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。
3: 文件的所有权益归上传用户所有。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 本站仅提供交流平台,并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。

版权提示 | 免责声明

本文(ASTM_D_3342_-_90_2017.pdf)为本站会员(益****师)主动上传,蜗牛文库仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知蜗牛文库(发送邮件至admin@wnwk.com或直接QQ联系客服),我们立即给予删除!

ASTM_D_3342_-_90_2017.pdf

1、Designation:D334290(Reapproved 2017)Standard Test Method forDispersion Stability of New(Unused)Rolling OilDispersions in Water1This standard is issued under the fixed designation D3342;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,

2、the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers determination of the dispersionstability of dispersions of rolling oils in water.It is

3、applicableto oils whose water dispersions are stable under moderateagitation,but which show at least some separation uponstanding quiescent for12h,by rising of the oil particles.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard

4、.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.For specificwarni

5、ng statements,see 6.2,A2.1,and A2.5.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trad

6、e Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D1126 Test Method for Hardness in WaterD1293 Test Methods for pH of Water3.Summary of Test Method3.1 The rolling oil is dispersed in a standard test water,in astandard container,under standard condition

7、s of time,agitation,and concentration.When the agitation is stopped,theresulting decrease in oil concentration at a specified point nearthe bottom of the container is measured at certain time intervalsand plotted.4.Significance and Use4.1 Each steel rolling mill and operation is particular as tothe

8、degree of stability of dispersion required to effect maxi-mum efficiency of lubrication and cooling.This test method isdesigned to differentiate between coolants for this use.Asimilar situation is encountered with aluminum rolling mills,but significant differences in designated settling times berequ

9、ired outside the parameter of times used herein.Precisiondata have only been obtained relative to metastable dispersionsfor steel mill rolling oils.5.Apparatus5.1 Mixing Beaker,3,45800 mL capacity,made of stainlesssteel,modified as shown in Annex A2.5.2 Combination Agitator and Temperature ControlDe

10、vice.4,55.3 Babcock Centrifuge Bottles4,6The 165 mm cream testbottle,with 5 mL-neck permitting oil concentration readingsfrom 0%to 10%is preferred.These bottles should be markedfor filling to the 50 mL level which will normally be foundclose to the junction of body and neck.Sulfonation bottles mayal

11、so be used.5.4 Centrifuge,capable of whirling the Babcock bottles atsufficient speed to give a clean separation of oil and waterunder the test conditions.A centrifuge giving a relativecentrifugal force(rcf)of 5009 at the bottle tips has been foundto give good separations in 10 min.1This test method

12、is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.L0.04 on Metal Deformation Fluids and Lubricants.Current edition approved June 1,2017.Published July 2017.Originally approvedin 1990.Last previous edit

13、ion approved in 2012 as D3342 90(2012).DOI:10.1520/D3342-90R17.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Th

14、e sole source of supply of the apparatus(beaker#2-584F)known to thecommittee at this time is Fisher Scientific.4If you are aware of alternative suppliers,please provide this information toASTM International Headquarters.Your comments will receive careful consider-ation at a meeting of the responsibl

15、e technical committee,1which you may attend.5The sole source of supply of the apparatus(the Porta-temp)known to thecommittee at this time is Precision Scientific Co.6The sole source of supply of the apparatus(cream test bottle No.12-705 orsulfonation bottle No.6-904)known to the committee at this ti

16、me is FisherScientific.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 5.5 To calculate the rpm required to achieve the stat

copyright@ 2008-2023 wnwk.com网站版权所有

经营许可证编号:浙ICP备2024059924号-2