ImageVerifierCode 换一换
格式:PDF , 页数:3 ,大小:73.90KB ,
资源ID:178546      下载积分:14 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/178546.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_3847_-_01_2018.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_3847_-_01_2018.pdf

1、Designation:D384701(Reapproved 2018)Standard Practice forRubberDirections for Achieving Subnormal TestTemperatures1This standard is issued under the fixed designation D3847;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of

2、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 practice covers the general requirements forachieving and maintaining temperatures below 21C for ther-mal conditioning

3、 and physical testing of rubber.1.2 This practice describes the acceptable types and con-struction of low-temperature cabinets for conditioning andtesting of rubber,the composition and circulation of heat-transfer media,and the required uniformity and precision oftemperature control.1.3 The values s

4、tated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.4 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,heal

5、th,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of Internati

6、onal Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D746 Test Method for Brittleness Temperature of Plasticsand Elastomers by ImpactD832 Practice for Rubber Conditioning For Low Tempera-t

7、ure TestingD945 Test Methods for Rubber Properties in Compression orShear(Mechanical Oscillograph)D1053 Test Methods for Rubber PropertyStiffening atLow Temperatures:Flexible Polymers and Coated FabricsD1229 Test Method for Rubber PropertyCompression Setat Low TemperaturesD1329 Test Method for Evalu

8、ating Rubber PropertyRetraction at Lower Temperatures(TR Test)D1415 Test Method for Rubber PropertyInternationalHardnessD2136 Test Method for Coated FabricsLow-TemperatureBend TestD2137 Test Methods for Rubber PropertyBrittleness Pointof Flexible Polymers and Coated FabricsD2240 Test Method for Rubb

9、er PropertyDurometer Hard-nessD2632 Test Method for Rubber PropertyResilience byVertical ReboundE197 Specification for Enclosures and Servicing Units forTests Above and Below Room Temperature(Withdrawn1981)33.Significance and Use3.1 Low temperatures are often needed for conditioning ofrubber prior t

10、o testing,as well as during the test.Conditioningis required to attain a specific temperature that is uniformthroughout the specimen or for producing time-dependenteffects.Specimens may be conditioned and tested in the sameor different chambers.3.2 This practice is intended to apply particularly,but

11、 notexclusively,to the following ASTM Standards:Test MethodsD746,D945,D1053,D1229,D1329,D1415,D2136,D2137,D2240,D2632,Practice D832,and Specification E197.4.General Equipment Requirements44.1 The low-temperature cabinet may be refrigeratedmechanically,or by dry ice or liquid nitrogen,either directly

12、 orindirectly.4.1.1 The heat-transfer medium in the test chamber shouldbe air or air mixed with carbon dioxide or nitrogen,unless a1This practice is under the jurisdiction ofASTM Committee D11 on Rubber andRubber-like Materials and is the direct responsibility of Subcommittee D11.10 onPhysical Testi

13、ng.Current edition approved June 1,2018.Published August 2018.Originallyapproved in 1979.Last previous edition approved in 2012 as D3847 01(2012).DOI:10.1520/D3847-01R18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual B

14、ook of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.4For more detailed information,see Specification E197.Copyright ASTM International,100 Barr Harbor Drive,PO Box

15、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 Wor

16、ld Trade Organization Technical Barriers to Trade(TBT)Committee.1 liquid medium is specified.Although liquids cool the speci-mens faster than gases,they are more likely to cause propertychanges in addition to those caused by temperature change.Water,ethyl alcohol,and ethylene glycol are usually acceptablefor immersion times that are kept to the minimum for therequired tests.4.1.2 The temperature variation within 250 mm of the testspecimen shall be within 61C of the specified testing tem-perature

copyright@ 2008-2023 wnwk.com网站版权所有

经营许可证编号:浙ICP备2024059924号-2