ImageVerifierCode 换一换
格式:PDF , 页数:2 ,大小:87.06KB ,
资源ID:182459      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/182459.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_1766_-_05_2021.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_1766_-_05_2021.pdf

1、Designation:D176605(Reapproved 2021)Standard Test Method forRubber ChemicalsSolubility1This standard is issued under the fixed designation D1766;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in pa

2、rentheses 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 a practical test for the solubilityof commercial chemicals used in rubber products.1.2 It is not a true measure of solubility,s

3、ince equilibrium isnot approached from both sides,that is,higher temperature andlower temperature.1.3 The test method indicates the total solubility,under theconditions of the test,of all components in the presence of eachother and in the proportions present in the sample.1.4 This test method does n

4、ot measure the solubility of arubber chemical in rubber.1.5 The values stated in SI units are to be regarded asstandard.The values given in parentheses after SI units areprovided for information only and are not considered standard.1.6 This standard does not purport to address all of thesafety conce

5、rns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.7 This international standard was developed in accor-dance with intern

6、ationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2E145 Speci

7、fication for Gravity-Convection and Forced-Ventilation Ovens3.Summary of Test Method3.1 The test specimen is shaken in a specified volume of adesired solvent at a specified time and temperature.Solids areallowed to settle and a specified aliquot of the clear supernatantsolvent is quantitatively remo

8、ved,the solvent evaporated,andthe mass of the residue obtained.From the masses of theresidue and original specimen,the solubility of the specimen isobtained by calculation.4.Significance and Use4.1 This test method may be used as a raw materialquality-control tool.5.Apparatus5.1 Containers,capacity

9、approximately 100 cm3(4-oz),glass,screw caps with metal foil liners.5.2 Weighing Bottles,50-cm3,ground-glass,low-form,withcovers.5.3 Mechanical Shaker.5.4 Steam Bath.5.5 Oven,constant-temperature,controllable,110C max inaccordance with Type B of Specification E145.6.Procedure6.1 Place 50 cm3of the d

10、esired solvent in each of twosuitable containers described in 5.1.Add,with shaking,asufficient test specimen of the organic chemical in the“as-received”condition to each of the bottles to give apparentsaturation,and then add about 25%more.Close both bottlestightly and place in a mechanical shaker,at

11、 room temperature,for a minimum of 4 h.6.2 Hold at 23 6 0.5C with occasional shaking for aminimum of an additional 4 h.If a significant quantity of solidsis not in evidence at this point in both bottles,add 25%moreof the organic chemical to each bottle and repeat both shakingcycles.6.3 Allow the sol

12、ids to settle and while maintaining thetemperature of the solution at 23 6 0.5C,remove this solutionby pipetting 25-cm3aliquots from each of the bottles througha suitable filter stick(Note 1).Transfer the contents of thepipets into each of two tared,ground-glass,low-form,50-cm3,covered weighing bott

13、les.Call the tare masses A.Cover theweighing bottles immediately.Weigh the bottles and solution.Call these masses B.NOTE1Afilter stick may be made by wiring a small piece of medium1This test method is under the jurisdiction of ASTM Committee D11 on Rubberand Rubber-like Materials and is the direct r

14、esponsibility of Subcommittee D11.11on Chemical Analysis.Current edition approved Nov.1,2021.Published November 2021.Originallyapproved in 1960.Last previous edition approved in 2016 as D1766 05(2016).DOI:10.1520/D1766-05R21.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontac

15、t ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was d

16、eveloped 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.1grade filter paper over the end of a pipet with fine wire.The filter papershould be removed before emptying the pipet.A pressure-type apparatusmay also be used to fill the pipet.6.4 Remove the covers and evaporate the

copyright@ 2008-2023 wnwk.com网站版权所有

经营许可证编号:浙ICP备2024059924号-2