EN 15109-2006 en Surface active agents - Determination of the active matter content of alkylamidopropylbetaines《表面活性剂 测定烷基酰氨丙基甜菜碱中活性物质含量》.pdf
《EN 15109-2006 en Surface active agents - Determination of the active matter content of alkylamidopropylbetaines《表面活性剂 测定烷基酰氨丙基甜菜碱中活性物质含量》.pdf》由会员分享,可在线阅读,更多相关《EN 15109-2006 en Surface active agents - Determination of the active matter content of alkylamidopropylbetaines《表面活性剂 测定烷基酰氨丙基甜菜碱中活性物质含量》.pdf(16页珍藏版)》请在麦多课文档分享上搜索。
1、BRITISH STANDARDBS EN 15109:2006Surface active agents Determination of the active matter content of alkylamidopropylbetainesThe European Standard EN 15109:2006 has the status of a British StandardICS 71.100.40g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g5
2、0g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 15109:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 December 2006 BSI 2006ISBN 0 580 49886 7National forewordThis Brit
3、ish Standard was published by BSI. It is the UK implementation of EN 15109:2006.The UK participation in its preparation was entrusted to Technical Committee CII/34, Methods of test for surface active agents.A list of organizations represented on CII/34 can be obtained on request to its secretary.Thi
4、s 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 publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUR
5、OPENNEEUROPISCHE NORMEN 15109November 2006ICS 71.100.40English VersionSurface active agents - Determination of the active mattercontent of alkylamidopropylbetainesAgents de surface - Dtermination de la teneur en matiresactives des alkylamidopropylbtanesGrenzflchenaktive Stoffe - Bestimmung des Aktiv
6、gehaltesvon AlkylamidopropylbetainenThis European Standard was approved by CEN on 6 October 2006.CEN members 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-d
7、ate lists and bibliographical references concerning such nationalstandards 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 translationunder the r
8、esponsibility 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 national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Irel
9、and, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36
10、B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15109:2006: EEN 15109:2006 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Principle4 4 Reagents.4 5 Apparatus .5 6 Sampling and preparation of t
11、he test sample.6 7 Procedure .6 8 Calculation and expression of results.7 9 Precision.8 9.1 Repeatability limit 8 9.2 Reproducibility limit 8 10 Test report 8 Annex A (informative) Titration parameters .9 Annex B (informative) Statistical and other data derived from the results of inter-laboratory t
12、ests .10 Annex C (informative) EN 13270 and EN 15109 active matter comparative analysis.11 C.1 General11 C.2 Analysis of alkylamidopropylbetaines 11 C.3 Analysis of alkyldimethylbetaines .12 Bibliography 13 EN 15109:2006 (E) 3 Foreword This document (EN 15109:2006) has been prepared by Technical Com
13、mittee 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 May 2007, and conflicting national standards shall be withdraw
14、n at the latest by May 2007. 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, Icelan
15、d, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 15109:2006 (E) 4 1 Scope This European Standard specifies a method for the determination of the active matter content of alky
16、lamidobetaines in commercial surface active agents. 2 Normative references The following referenced 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
17、 any amendments) applies. EN ISO 3696, Water for analytical laboratory use Specification and test methods (ISO 3696:1987) ISO 607, Surface active agents and detergents Methods of sample division 3 Principle The test sample to be analysed is alkalinized by addition of sodium hydroxide. In this way al
18、l substances present are converted into a defined form, namely: the betaine into its intermolecular salt form; the amidoamine into the free amidoamine; the acids (e.g. hydrochloric acid, fatty acids, chloroacetic acids and glycolic acid) into their sodium salt forms. During the titration with perchl
19、oric acid in the non-aqueous medium: the betaine is changed into the protonated form; the amidoamine is changed into the amidoamine perchlorate; the excess sodium hydroxide and sodium salts of the different acids are transformed into weakly dissociated sodium perchlorate. By using a solvent mixture
20、which enables a good differentiation of varying pK(b) values, it is possible to differenciate the betaine from these accompanying substances. Salts of chloroacetic acids, glycolic acid, fatty acid and amidoamine do not interfere. Short chain betaines are titrated together with long chain betaines. 4
21、 Reagents 4.1 General WARNING Your attention is drawn to the regulations covering the handling of hazardous substances. Technical, organisational and personal protection measures should be observed. During the analysis, unless otherwise specified, use only reagents of recognized analytical grade and
22、 have been checked in advance as to not interfere with the analytical results and water complying with grade 1 as defined in EN ISO 3696. 4.2 1,4-dioxane, minimum purity 99 % (CAS number: 123-91-1). EN 15109:2006 (E) 5 WARNING This substance can cause irreversible effects and eye irritation. 4.3 Met
23、hoxyethanol, minimum purity 99 % (CAS number : 32718-54-0). WARNING This substance is considered as mutagenic. 4.4 Methanol, minimum purity 99,5 % (CAS number : 67-56-1). WARNING This substance is considered toxic by ingestion or inhalation. 4.5 Sodium hydroxide, c(NaOH) = 1,0 mol/l (CAS number : 13
24、10-73-2). 4.6 Sodium acetate, minimum purity 99 % (CAS number : 127-09-3). 4.7 Sodium hydroxide/sodium acetate solution Dissolve 80 g of sodium acetate in aqueous sodium hydroxide (c(NaOH) = 1,0 mol/l) into a 1 l volumetric flask. Make up to the volume with the same sodium hydroxide solution. Stoppe
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