EN 14667-2005 en Surface active agents - Determination of low boiling solvents in liquid formulations - Gas chromatographic method《表面活性剂 测定液体成分中的低沸点溶剂 气相色谱法》.pdf
《EN 14667-2005 en Surface active agents - Determination of low boiling solvents in liquid formulations - Gas chromatographic method《表面活性剂 测定液体成分中的低沸点溶剂 气相色谱法》.pdf》由会员分享,可在线阅读,更多相关《EN 14667-2005 en Surface active agents - Determination of low boiling solvents in liquid formulations - Gas chromatographic method《表面活性剂 测定液体成分中的低沸点溶剂 气相色谱法》.pdf(12页珍藏版)》请在麦多课文档分享上搜索。
1、BRITISH STANDARD BS EN 14667:2005 Surface active agents Determination of low boiling solvents in liquid formulations Gas chromatographic method The European Standard EN 14667:2005 has the status of a British Standard ICS 71.100.40 BS EN 14667:2005 This British Standard was published under the author
2、ity of the Standards Policy and Strategy Committee on 11 July 2005 BSI 11 July 2005 ISBN 0 580 46361 3 National foreword This British Standard is the official English language version of EN 14667:2005. The UK participation in its preparation was entrusted to Technical Committee CII/34, Methods of te
3、st for surface active agents, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in
4、 the BSI Catalogue under the section 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 responsib
5、le for its correct application. Compliance 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 the U
6、K interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 9 and a back cover. The BSI copyright notice displayed in this document indicates
7、when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14667 June 2005 ICS 71.100.40 English version Surface active agents - Determination of low boiling solvents in liquid formulations - Gas chromatographic m
8、ethod Agents de surface - Dtermination des solvants faible point dbullition dans les formulations liquides - Mthode par chromatographie en phase gazeuse Grenzflchenaktive Stoffe - Bestimmung des Gehaltes an leichtsiedenden Lsemitteln in flssigen Formulierungen - Gaschromatographisches Verfahren This
9、 European Standard was approved by CEN on 19 May 2005. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
10、concerning such national standards may be obtained on application 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 translation under the responsibility of a CEN member into its
11、 own language and notified to the Central Secretariat has the same status as the official versions. 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, Luxe
12、mbourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of
13、exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14667:2005: EEN 14667:2005 (E) 2 Contents Page Foreword 3 1 Scope .4 2 Normative references .4 3 Terms and definitions.4 4 Principle.4 5 Reagents4 6 Apparatus 4 7 Sampling and preparation of the sample
14、 5 8 Procedure 5 9 Calculation and expression of results.6 10 Precision6 11 Test report .7 Annex A (informative) Typical gas chromatogram.8 Annex B (informative) Results of inter-laboratory test 9EN 14667:2005 (E) 3 Foreword This European Standard (EN 14667:2005) has been prepared by Technical Commi
15、ttee CEN/TC 276 “Surface Active Agents”, the secretariat of which is held by AFNOR. 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 December 2005, and conflicting national standards shall be withd
16、rawn at the latest by December 2005. 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, Hungary
17、, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14667:2005 (E) 4 1 Scope This European Standard specifies a method for the determination of the content of low boiling solvent
18、s, e.g. methanol, ethanol propan-1-ol and propan-2-ol in liquid detergents. Typically only one solvent is present in these kinds of samples. The method is applicable to liquid detergents containing low boiling solvents in the range from 0,5 % to 10 % by weight. 2 Normative references The following r
19、eferenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 607, Surface active agents and detergents Methods of sample
20、division. 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. low boiling solvent alcohol with a boiling point below 100 C NOTE For example ethanol, propan-1-ol and propan-2-ol. 4 Principle The liquid detergent is dissolved in butan-1-ol, wh
21、ich is a water miscible solvent with higher boiling point than the solvents to be determined. The content of low boiling solvents is determined with gas chromatography. 5 Reagents During the analysis, unless otherwise specified, use only reagents of recognized analytical grade that have been checked
22、 in advance as to not interfere with the analytical results. 5.1 Ethanol, purity 99,5 % (m/m) 5.2 Propan-1-ol, purity 99,5 % (m/m). 5.3 Propan-2-ol, purity 99,5 % (m/m). 5.4 Butan-1-ol, purity 99,5 % (m/m). 5.5 Carrier gas, nitrogen or helium for gas chromatography. 5.6 Auxiliary gases, for gas chro
23、matography. 6 Apparatus Normal laboratory apparatus and the following: EN 14667:2005 (E) 5 6.1 Gas chromatograph, suitable for work with a fused silica capillary column and equipped with a split injector and a flame ionization detector (FID). 6.2 Capillary column, capable of the separation character
24、istics shown in Figure A.1. NOTE A 30 m x 0,53 mm ID, fused silica capillary column (film thickness 0,25 m) with 5 % phenyl-, 95 % methyl polysiloxane stationary phase is advisable. 6.3 Electronic integrator 6.4 Ultrasonic bath 6.5 Membrane filter, 0,45 m pore size. 7 Sampling and preparation of the
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- EN146672005ENSURFACEACTIVEAGENTSDETERMINATIONOFLOWBOILINGSOLVENTSINLIQUIDFORMULATIONSGASCHROMATOGRAPHICMETHOD
链接地址:http://www.mydoc123.com/p-714387.html