ImageVerifierCode 换一换
格式:PDF , 页数:3 ,大小:59.06KB ,
资源ID:518709      下载积分:10000 积分
快捷下载
登录下载
邮箱/手机:
温馨提示:
如需开发票,请勿充值!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   
注意:如需开发票,请勿充值!
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【http://www.mydoc123.com/d-518709.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: 微信登录  

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 D5040-1990(2016) Standard Test Methods for Ash Content of Adhesives《胶粘剂灰分含量的标准试验方法》.pdf)为本站会员(roleaisle130)主动上传,麦多课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,请立即通知麦多课文库(发送邮件至master@mydoc123.com或直接QQ联系客服),我们立即给予删除!

ASTM D5040-1990(2016) Standard Test Methods for Ash Content of Adhesives《胶粘剂灰分含量的标准试验方法》.pdf

1、Designation: D5040 90 (Reapproved 2016)Standard Test Methods forAsh Content of Adhesives1This standard is issued under the fixed designation D5040; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number

2、 in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope1.1 These test methods cover procedures used in determin-in

3、g the ash content of adhesives. This standard is intended as areplacement for Method 4032.1 of Federal Test Method Stan-dard 175B, “Adhesives: Methods of Testing.”1.2 Two test methods are used:1.2.1 Test Method A is used for a starch adhesive or othertype glue, where there is no danger from the non-

4、volatilecontent forming a rubbery mass when ignited.1.2.2 Test Method B employs nitric acid to avoid thenon-volatile residue being transformed into a viscous foamwhen ignited.1.3 These methods are not applicable to adhesives contain-ing decomposable salts such as zinc chloride.1.4 The values stated

5、in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.1.5 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 h

6、ealth practices and determine the applica-bility of regulatory limitations prior to use. For a specifichazard statement, see 9.2.3.2. Referenced Documents2.1 ASTM Standards:2D301 Test Methods for Soluble Cellulose Nitrate (With-drawn 2011)3D907 Terminology of AdhesivesD2415 Test Method for Ash in Co

7、al Tar and Pitch3. Terminology3.1 DefinitionsDefinitions of terms in this standard maybe found in Terminology D907.4. Summary of Test Methods4.1 Ash content of adhesive materials is determined byheating a sample of material to remove all of the volatilecomponents. Complete oxidation and removal of a

8、ll carbona-ceous material may be enhanced by the addition of concen-trated HNO3. The general method of burning the residual ashin a muffle furnace at 600 6 25C (1112 6 45F) for8horuntil constant weight, is used.5. Significance and Use5.1 This test method measures the amount of inorganicmaterial in t

9、he sample.6. Apparatus6.1 Crucible, porcelain, silica or platinum with a tightlyfitting lid, having a capacity of 30 to 45 mL.6.2 Evaporating Dish, porcelain, silica, or platinum, with acapacity of 150 mL.6.2.1 Watch Glasses to cover evaporating dishes.6.3 Desiccator, equipped with drying agent and

10、tray.6.4 Analytical Balance, sensitive to 1 mg.6.5 Steam Bath.6.6 Drying Oven, with temperature control for maintainingtemperature at 100 to 105C (212 to 221F).6.7 Electric Hotplate.6.8 Muffle Furnace, for igniting crucibles containing testspecimens. Capable of maintaining desired temperature regu-l

11、ation (600 6 25C (1112 6 45F).7. Reagents7.1 Nitric Acid (HNO3), concentrated, sp gr 1.42.8. Test Specimens8.1 For each test, use 5 to6gofmaterial.1These test methods are under the jurisdiction of ASTM Committee D14 onAdhesives and are the direct responsibility of Subcommittee D14.10 on WorkingPrope

12、rties.Current edition approved May 1, 2016. Published May 2016. Originallyapproved in 1990. Last previous edition approved in 2011 as D5040 90 (2011).DOI: 10.1520/D5040-90R16.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For

13、 Annual Book 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.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. Un

14、ited States18.2 The specimen being tested should represent the entirelot of material. Two specimens shall be taken for testing fromeach sample unit.9. Procedure9.1 Test Method APlace a 5.0 6 0.5-g test specimen in anignited and tared crucible and evaporate to dryness on a steambath. Cool in a desicc

15、ator and weigh accurately. Heat thecrucible and its contents in a muffle furnace, gradually heatingthe furnace until the temperature reaches 600 6 25C (1112 645F). With the ignition temperature kept at 600C (1112F),allow the specimen to remain in the muffle furnace for8horuntil constant weight is re

16、ached. Check weight by cooling indesiccator and weighing to constant weight.9.2 Test Method B:9.2.1 Place 5.0 6 0.5 g test specimen in a tared and igniteddish and evaporate to dryness on a steam bath.NOTE 1It is necessary to evaporate all volatile solvent to avoid firehazard when subjecting material

17、 to subsequent drying operation.9.2.2 Dry the test specimen in the oven at 100 to 105C (212to 221F) for 5 h, cool in the desiccator, then reweigh to thenearest mg. Add 25 mL nitric acid to the dried material in theevaporating dish, cover with a watch glass to prevent loss byspattering, heat on a ste

18、am bath until initial vigorous reactionceases. Repeat addition of 25 mL nitric acid and heating on thesteam bath until no further action occurs. Remove the watchglass and continue heating on the steam bath until all excessnitric acid has been removed. Heat the evaporating dish andcontents on an elec

19、tric hotplate, or under an infrared lamp, orin a cold furnace while raising the temperature slowly toprevent spattering and until all volatile matter is driven off andthe contents of the dish are charred. Then ignite the evaporatingdish and contents in the muffle furnace at 600 6 25C (1112 645F) to

20、constant weight.NOTE 2The nitric acid treatment in Test Method B increases oxidationof organic material at relatively low temperatures while burning off onlythe residual carbon in the muffle furnace. Rubbery residues heated in amuffle furnace can produce a viscous foam which may expand andoverflow o

21、r spatter due to gaseous decomposition while heating, causingloss of sample.9.2.3 Warning: All operations involving handling and useof corrosive acids are extremely dangerous. Special careshould be taken when using nitric acid.10. Calculation10.1 Test Method ACalculate the ash content, CA, basedon t

22、he total weight of the specimen as follows:CA,%5 W1/W23100where:W1= weight of ash, andW2= weight of test specimen.10.2 Test Method B:10.2.1 Calculate non-volatile content, CN, in the specimenas follows:CN,%5 w/W 3100where:w = weight of specimen after oven heating, andW = original weight of sample.10

23、.2.2 Calculate ash content of the non-volatile content, AN,based on the weight of the non-volatile content in the sampleas follows:AN,%5 W1/w 3100where:W1= weight of ash, andw = weight of non-volatile content in sample.NOTE 3If required, the ash content of the total weight of the specimenshall be ca

24、lculated as specified in 10.1.11. Report11.1 Report the following information:11.1.1 Pertinent contractual requirements,11.1.2 Whether the test was determined by Test MethodAorB,11.1.3 The percentage of ash and whether it is based on theoriginal weight of the sample or the weight of non-volatilecont

25、ent,11.1.4 The temperature and the length of time the specimenwas in the muffle furnace, and11.1.5 The weight percent of ash to the nearest 0.01 %.12. Precision and Bias12.1 Use the following criteria to judge the acceptability ofresults:12.1.1 Duplicate values in this test method shall not differby

26、 more than 0.01 %.12.1.2 Duplicate determinations by two sets of laboratoriesshould not differ by more than 0.03 %.13. Keywords13.1 adhesive; ash contentD5040 90 (2016)2ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin

27、this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must

28、 be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of ther

29、esponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700,

30、 West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 90 (2016)3

copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
备案/许可证编号:苏ICP备17064731号-1