ImageVerifierCode 换一换
格式:PDF , 页数:12 ,大小:262.26KB ,
资源ID:552348      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-552348.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(BS EN 827-2005 Adhesives - Determination of conventional solids content and constant mass solids content《胶粘剂 常规固体含量和恒定质量固体含量的测定》.pdf)为本站会员(sofeeling205)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!

BS EN 827-2005 Adhesives - Determination of conventional solids content and constant mass solids content《胶粘剂 常规固体含量和恒定质量固体含量的测定》.pdf

1、BRITISH STANDARDBS EN 827:2005Adhesives Determination of conventional solids content and constant mass solids contentThe European Standard EN 827:2005 has the status of a British StandardICS 83.180g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59

2、g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Licensed Copy: Wang Bin, na, Wed Apr 12 08:41:26 BST 2006, Uncontrolled Copy, (c) BSIBS EN 827:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee o

3、n 25 January 2006 BSI 25 January 2006ISBN 0 580 47729 0National forewordThis British Standard is the official English language version of EN 827:2005. It supersedes BS EN 827:1995 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PRI/52, Adhesives, whic

4、h has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section

5、 entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compl

6、iance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related int

7、ernational and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 8, an inside back cover and a back cover.The BSI copyright notice displayed in this document indicates when the document was

8、last issued.Amendments issued since publicationAmd. No. Date CommentsLicensed Copy: Wang Bin, na, Wed Apr 12 08:41:26 BST 2006, Uncontrolled Copy, (c) BSIEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 827December 2005ICS 83.180 Supersedes EN 827:1994 English VersionAdhesives - Determination of co

9、nventional solids content andconstant mass solids contentAdhsifs - Dtermination de lextrait sec conventionnel etde lextrait sec masse constanteKlebstoffe - Bestimmung des Feststsoffgehaltes nachVereinbarung und bis zur MassekonstanzThis European Standard was approved by CEN on 21 November 2005.CEN m

10、embers are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on applicat

11、ion to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the sa

12、me status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slov

13、enia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN nati

14、onal Members.Ref. No. EN 827:2005: ELicensed Copy: Wang Bin, na, Wed Apr 12 08:41:26 BST 2006, Uncontrolled Copy, (c) BSIEN 827:2005 (E) 2 Contents Page Foreword 3 1 Scope .4 2 Normative references .4 3 Terms and definitions.4 4 Safety .4 5 Apparatus 5 6 Sampling5 7 Procedure 5 8 Expression of resul

15、ts7 9 Test report .8 Licensed Copy: Wang Bin, na, Wed Apr 12 08:41:26 BST 2006, Uncontrolled Copy, (c) BSIEN 827:2005 (E) 3 Foreword This European Standard (EN 827:2005) has been prepared by Technical Committee CEN/TC 193 “Adhesives”, the secretariat of which is held by AENOR. This European Standard

16、 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2006, and conflicting national standards shall be withdrawn at the latest by June 2006. This European Standard supersedes EN 827:1994. According to the CEN/CENELEC I

17、nternal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Ne

18、therlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: Wang Bin, na, Wed Apr 12 08:41:26 BST 2006, Uncontrolled Copy, (c) BSIEN 827:2005 (E) 4 SAFETY STATEMENT: Persons using this European Standard should be familiar with the normal lab

19、oratory practice, in principle. This European Standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any regulatory conditions. 1 Scope T

20、his European Standard specifies a method for the determination of conventional solids content and, where possible, constant mass solids content. It is applicable to dispersion, emulsion and solvent based adhesives. 2 Normative references The following referenced documents are indispensable for the a

21、pplication of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 923, Adhesives Terms and definitions EN 1067, Adhesives Examination and preparation of samples for

22、testing EN ISO 15605, Adhesives Sampling (ISO 15605:2000) 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 923 and the following apply. 3.1 conventional solids content solids content obtained by heating a conventional amount of the sample plac

23、ed in a given vessel at a given temperature for a specific time 3.2 constant mass solids content solids content obtained by heating the sample for successive intervals until the volatile components have evaporated and the residue reaches a constant mass 4 Safety WARNING During the test dangerous vol

24、atile products (toxic, harmful, flammable) might be evolved. Particular attention should be paid to protect the operators, using suitable equipment such as extraction fans. Licensed Copy: Wang Bin, na, Wed Apr 12 08:41:26 BST 2006, Uncontrolled Copy, (c) BSIEN 827:2005 (E) 5 5 Apparatus 5.1 Oven wit

25、h natural ventilation, capable of keeping the test temperature constant within 1 C. 5.2 Oven with forced ventilation, capable of keeping the test temperature constant within 1 C. 5.3 Analytical balance, accurate to 0,1 mg. 5.4 Flat bottomed thin metal container, e.g. metal lid, with the diameter and

26、 depth as indicated in 7.6.1. 5.5 Desiccator, with appropriate desiccant. 6 Sampling Take a representative sample of the adhesives to be tested, in accordance with EN ISO 15605 and prepare it in accordance with EN 1067. 7 Procedure The following procedure shall be carried out in duplicate: 7.1 Place

27、 the clean container (5.4) in the oven (5.1 or 5.2 according to 7.6.1) at the test temperature for about 30 min then let it cool in the desiccator (5.5) for at least 15 min. 7.2 Using the analytical balance (5.3) weigh the container (5.4) to the nearest 0,1 mg and let m1be the mass in grams. 7.3 Tra

28、nsfer carefully a test portion of 1 g to 5 g of adhesive according to 7.6.1, into the container (5.4) and weigh to the nearest 0,1 mg and let m2 be the mass in grams. 7.4 Place the container in the oven (5.1 or 5.2 according to 7.6.1) and dry at the temperature and for the time specified in 7.6. 7.5

29、 Remove the container from the oven, cool it in a desiccator (5.5) for at least 15 min, and weigh it to the nearest 0,1 mg and let m3be the mass in grams. Licensed Copy: Wang Bin, na, Wed Apr 12 08:41:26 BST 2006, Uncontrolled Copy, (c) BSIEN 827:2005 (E) 6 7.6 Oven drying conditions 7.6.1 Determina

30、tion of conventional solids content Table 1 Test conditions Types of adhesives Quantity sample (g) Diameter metal container d (mm) Temperature c (C) Time (min) Type of oven Natural adhesives Adhesives of vegetable origin Adhesives of animal origin 2 0,2 2 0,2 60 5 60 5 105 1 105 1 120 1 120 1 Forced

31、 ventilation (5.2) Forced ventilation (5.2) Synthetic adhesives Phenolic resins a Penolic resins for wood applications a Amino resins Poly(vinyl alcohol) type 2 0,2 2 0,2 2 0,2 2 0,2 60 5 35 5 35 5 60 5 135 1 120 1 120 1 105 1 180 1 120 1 120 1 120 1 Natural ventilation (5.1) Natural ventilation (5.

32、1) Natural ventilation (5.1) Natural ventilation (5.1) Aqueous dispersion adhesives Vinyl polymers and copolymers Acrylate polymers and copolymers Miscellaneous synthetics Natural rubbers for latex Polyurethanes Plasticized polymers 1 0,1 1 0,1 1 0,1 1 0,1 1 0,1 1 0,1 60 5 60 5 60 5 60 5 60 5 60 5 1

33、05 1 105 1 105 1 105 1 105 1 80 1 60 1 60 1 60 1 60 1 60 1 60 1 Natural ventilation (5.1) Natural ventilation (5.1) Natural ventilation (5.1) Natural ventilation (5.1) Natural ventilation (5.1) Natural ventilation (5.1) 1 0,1 60 5 105 1 120 1 Forced ventilation (5.2) Organic solvent based adhesives

34、Inert adhesives Reactive adhesives bTest conditions shall be agreed in advance between the parties aIt can be necessary to dilute certain adhesives based on phenolic resins with alcohol so that the test portion can be spread readily. bUnlike the other organic solvent based adhesives the components o

35、f reactive products are in the intermediate state between monomer and polymer. These adhesives can have a significant vapour pressure at 105 C which can result in a loss of active ingredient; therefore under normal conditions of use, these active ingredients are an integral part of the solids conten

36、t. Under these circumstances the determination of the solids content of such adhesives is uncertain. cThe required temperature varies according to the type of product under test and depends in particular on the risk of heat degradation, volatility of the solvents and the possibility of reactions suc

37、h as polycondensations. It is essential that the required temperature tolerance is achieved. Ovens used shall therefore be examined to ensure that the internal temperature distribution is such that these requirements are fully complied with. dThe metal container depth is important as well. It shall

38、be between 3 mm and 10 mm. Licensed Copy: Wang Bin, na, Wed Apr 12 08:41:26 BST 2006, Uncontrolled Copy, (c) BSIEN 827:2005 (E) 7 7.6.2 Determination of the constant mass solids content This procedure shall not be used with phenolic resins and amino resins. Continue drying for about 2 h at a tempera

39、ture as indicated in 7.6.1. Weight the container after conditioning in a desiccator (5.5) to the nearest 0,1 mg. Dry for further successive intervals of approximately 30 min. When successive weighings do not differ by more than 2 mg, the lower of the two shall be taken as m4(in grams). If constant m

40、ass is not achieved after five cycles, this method is considered unsuitable for measuring the solids content of the product under test. 8 Expression of results 8.1 Conventional solids content (C1) Express the result of each of the two tests as a percentage by mass using the following Equation (1): m

41、3- m1C1= _x 100 % (1) m2- m1 Calculate the arithmetic mean and report it rounded to the first decimal. The difference between each measurement and the mean shall be less than 1 % of this mean; otherwise repeat the test in duplicate. 8.2 Constant mass solids content (C2) Express the result of each of

42、 the two tests as a percentage by mass using the following Equation (2): m4- m1C2= _x 10 % (2) m2- m1Calculate the arithmetic mean and report it rounded to the first decimal. The difference between each measurement and the mean shall be less than 2 % of this mean; otherwise repeat the test. Licensed

43、 Copy: Wang Bin, na, Wed Apr 12 08:41:26 BST 2006, Uncontrolled Copy, (c) BSIEN 827:2005 (E) 8 9 Test report The test report shall include the following information: a) reference to this European Standard, i.e. EN 827; b) type and denomination of the adhesive tested; c) test conditions (container di

44、ameter, type of oven, temperature and drying time); d) results obtained for the conventional solids content or the constant mass solids content, or the two results one after the other; e) any modification to the procedure described, and any circumstances which may have affected the results; f) date

45、of test Licensed Copy: Wang Bin, na, Wed Apr 12 08:41:26 BST 2006, Uncontrolled Copy, (c) BSIblankLicensed Copy: Wang Bin, na, Wed Apr 12 08:41:26 BST 2006, Uncontrolled Copy, (c) BSIBS EN 827:2005BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national b

46、ody responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter.RevisionsBritish Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the lates

47、t amendments or editions.It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can

48、 be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400.BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards.Buying standardsOrders for all BSI, international and foreign st

49、andards publications should be addressed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 8996 7001. Email: ordersbsi-. Standards are also available from the BSI website at http:/www.bsi-.In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless other

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