ImageVerifierCode 换一换
格式:PDF , 页数:12 ,大小:230.90KB ,
资源ID:712829      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-712829.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(EN 827-2005 en 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(appealoxygen216)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!

EN 827-2005 en 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 827:2005Incorporating corrigendum no. 1Adhesives Determination of conventional solids content and constant mass solids contentThe European Standard EN 827:2005 has the status of a British StandardICS 83.180g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g

2、53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 827:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 25 January 2006 BSI 2007ISBN 0 580 47729 0National f

3、orewordThis British Standard was published by BSI. It is the UK implementation of EN 827:2005. It supersedes BS EN 827:1995 and BS 5350-B2:1976 which are withdrawn.The UK participation in its preparation was entrusted to Technical Committee PRI/52, Adhesives.A list of organizations represented on PR

4、I/52 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since public

5、ationAmd. No. Date Comments16858 Corrigendum No. 131 January 2007 Revision of supersession detailsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 827December 2005ICS 83.180 Supersedes EN 827:1994 English VersionAdhesives - Determination of conventional solids content andconstant mass solids conten

6、tAdhsifs - 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 members are bound to comply with the CEN/CENELEC Internal

7、 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 application to the Central Secretariat or to any CEN member.This

8、 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 same status as the officialversions.CEN members are the na

9、tional 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,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EURO

10、PEAN 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 national Members.Ref. No. EN 827:2005: EEN 827:2005 (E) 2 Co

11、ntents 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 results7 9 Test report .8 EN 827:2005 (E) 3 Foreword This European Standard (EN 827:2005) has been prepared by Technical Committee CEN/TC 193 “Adh

12、esives”, the secretariat of which is held by AENOR. This European Standard 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. Thi

13、s European Standard supersedes EN 827:1994. According to the CEN/CENELEC Internal 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,

14、Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 827:2005 (E) 4 SAFETY STATEMENT: Persons using this European Standard should be familiar with the normal laboratory pra

15、ctice, 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 This Europea

16、n 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 application

17、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 testing EN

18、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 placed in a giv

19、en 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 volatile produ

20、cts (toxic, harmful, flammable) might be evolved. Particular attention should be paid to protect the operators, using suitable equipment such as extraction fans. EN 827:2005 (E) 5 5 Apparatus 5.1 Oven with natural ventilation, capable of keeping the test temperature constant within 1 C. 5.2 Oven wit

21、h 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 depth as indicated in 7.6.1. 5.5 Desiccator, with appropriate desiccant. 6 Sampling Take a repr

22、esentative 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 the clean container (5.4) in the oven (5.1 or 5.2 according to 7.6.1) at the test temperature f

23、or 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 Transfer carefully a test portion of 1 g to 5 g of adhesive according to 7.6.1, into the container

24、(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 Remove the container from the oven, cool it in a desiccator (5.5) for at least 15 min, and weig

25、h it to the nearest 0,1 mg and let m3be the mass in grams. EN 827:2005 (E) 6 7.6 Oven drying conditions 7.6.1 Determination 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

26、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 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,

27、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 (5.1) Natural ventilation (5.1) Natural ventilation (5.1) Aqueous dispersion adhesives Vinyl polymers and copolymers Acrylate polymers and copolymers Miscellaneous synthetics Natural r

28、ubbers 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 5 105 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 venti

29、lation (5.1) Natural ventilation (5.1) 1 0,1 60 5 105 1 120 1 Forced ventilation (5.2) Organic solvent based adhesives 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 alc

30、ohol so that the test portion can be spread readily. bUnlike the other organic solvent based adhesives the components of 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 i

31、ngredient; therefore under normal conditions of use, these active ingredients are an integral part of the solids content. 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

32、 depends in particular on the risk of heat degradation, volatility of the solvents and the possibility of reactions such as polycondensations. It is essential that the required temperature tolerance is achieved. Ovens used shall therefore be examined to ensure that the internal temperature distribut

33、ion is such that these requirements are fully complied with. dThe metal container depth is important as well. It shall be between 3 mm and 10 mm. EN 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

34、 drying for about 2 h at a temperature 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 ta

35、ken as m4(in grams). If constant mass 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 u

36、sing the following Equation (1): m3- 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

37、(C2) Express the result of each of 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; o

38、therwise repeat the test. EN 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 diameter, type of oven, temperature and drying time);

39、 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 of test blankBS EN 827:2005BSI389 Chiswick High Roa

40、dLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body 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 re

41、vision. Users of British Standards should make sure that they possess the latest 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

42、the Secretary of the technical committee responsible, the identity of which can 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 edition

43、s of standards.Buying standardsOrders for all BSI, international and foreign standards 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 orde

44、rs for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested.Information on standardsBSI provides a wide range of information on national, European and international standards through its Library

45、and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel: +44 (0)20 8996 7111. Fax: +44 (0)20 8996 7048. Email: infobsi-.Subscribing members of BSI are kept up

46、to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: +44 (0)20 8996 7002. Fax: +44 (0)20 8996 7001. Email: membershipbsi-.Information regarding online access to Britis

47、h Standards via British Standards Online can be found at http:/www.bsi- information about BSI is available on the BSI website at http:/www.bsi-.CopyrightCopyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodie

48、s. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI.This does not preclude the free us

49、e, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained.Details and advice can be obtained from the Copyright

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