1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Cable management systems - Test method for content of halogensBS EN 50642:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50642 May 2018 ICS 29.120.10 English Version Cable management systems - Test method for
2、content of halogens Systmes de gestion de cblage - Mthode dessai relative la teneur en halognes Kabelfhrungssysteme - Prfverfahren fr Halogengehalt This European Standard was approved by CENELEC on 2018-03-26. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipul
3、ate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This Europea
4、n Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC membe
5、rs are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norw
6、ay, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre
7、: Rue de la Science 23, B-1040 Brussels 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50642:2018 E National forewordThis British Standard is the UK implementation of EN 50642:2018.The UK participation in its preparation was e
8、ntrusted to Technical Committee PEL/213, Cable management.A list of organizations represented on this committee 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. The
9、British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 91843 8ICS 71.060.10; 29.060.20; 29.120.10; 03.100.70Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Pol
10、icy and Strategy Committee on 31 May 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 50642:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50642 May 2018 ICS 29.120.10 English Version Cable management systems - Test method for content of halogens S
11、ystmes de gestion de cblage - Mthode dessai relative la teneur en halognes Kabelfhrungssysteme - Prfverfahren fr Halogengehalt This European Standard was approved by CENELEC on 2018-03-26. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions fo
12、r giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in
13、three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national e
14、lectrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal,
15、 Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la Science 2
16、3, B-1040 Brussels 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50642:2018 E BS EN 50642:2018EN 50642:2018 (E) 2 Contents Page European foreword . 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 5 4 Principle
17、5 5 Interferences 5 5.1 General . 5 5.2 Organic halogen compounds . 6 5.3 Inorganic halogen compounds 6 6 Classifications, limits and declaration 6 6.1 Classification . 6 6.2 Limits 6 6.3 Declaration . 6 7 Reagents and control mixtures 7 7.1 Reagents . 7 7.1.1 General . 7 7.1.2 Water . 7 7.1.3 Absor
18、ption solution 1, for the determination of fluorine, chlorine and bromine 7 7.1.4 Absorption solution 2 for the determination of iodine 7 7.1.5 Oxygen 7 7.1.6 Combustion enhancer . 7 7.2 Control samples . 7 8 Sample preparation . 7 9 Equipment 8 9.1 Calorimetric decomposition bomb 8 9.2 Sample pan .
19、 8 9.3 Firing wire . 8 9.4 Ignition circuit 8 9.5 Usual laboratory equipment . 8 10 Procedure . 8 10.1 General . 8 10.2 Choice of the absorption solution . 8 10.3 Preparation of the bomb . 9 10.4 Combustion 9 10.5 Collection of the halides . 9 10.6 Cleaning procedure . 9 11 Test method for determina
20、tion . 10 12 Control measurements . 10 13 Evaluation . 10 13.1 General . 10 13.2 Procedure to evaluate the test results 10 13.3 Determination of the halogen content of a CMS component or product made of multiple parts 11 13.4 Calculation of total halogen content . 11 13.5 Compliance 11 14 Test repor
21、t 11 Annex A (informative) Examples for possible control substances 12 BS EN 50642:2018EN 50642:2018 (E) 3 Table A.1 Examples for possible control substances 12 Bibliography 13 BS EN 50642:2018EN 50642:2018 (E) 4 European foreword This document (EN 50642:2018) has been prepared by CLC/TC 213 “Cable
22、management systems”. The following dates are fixed: latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2019-03-26 latest date by which the national standards conflicting with this document have to be wit
23、hdrawn (dow) 2021-03-26 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights. BS EN 50642:2018EN 50642:2018 (E) 5 1 Scope This European Standard specif
24、ies a method for the determination of the content of halogens in Cable Management System (CMS) components or products made of polymeric material(s). The determination is made by combustion and subsequent analysis of the combustion product by Ion Chromatography. This standard specifies how CMS compon
25、ents or products can be declared as halogen free. This European Standard is for environmental performance only. Compliance with this standard does not imply the absence of toxicity, corrosivity or opacity of produced smoke, or other reaction to fire characteristics. If any of these characteristics a
26、re to be evaluated, the appropriate standards can be used. The detection limit of this test method is typically 0,025 g of halogen per kg (0,002 5 %). Halides insoluble in aqueous solution present in the original sample or produced during the combustion step are not determined by this method. 2 Norm
27、ative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any a
28、mendments) applies. EN ISO 3696, Water for analytical laboratory use - Specification and test methods (ISO 3696) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain terminological databases for use in standardization at the follo
29、wing addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp 3.1 halogen content content of fluorine, chlorine, bromine and iodine as organic and inorganic compounds that can be converted to halides (fluoride, chloride, b
30、romide, iodide) by combustion and then absorbed or dissolved in an aqueous solution Note 1 to entry: The above definition is valid for this European Standard only and does not strictly comply with scientific definition of halogen content. 4 Principle The test sample is oxidized by combustion in a cl
31、osed system containing oxygen under pressure using a calorimetric decomposition bomb (bomb). Nearly all of the halogens in compounds are converted to halides (fluoride, chloride, bromide and iodide), and nearly all of these (see Clause 5) are dissolved in an absorption solution. The detection limit
32、of this test method is typically 0,025 g of halogen per kg (0,002 5 %). It may be used for poorly burning samples, therefore a combustion enhancer may be used. 5 Interferences 5.1 General Inorganic halides insoluble in aqueous solution present in the original samples or produced during the combustio
33、n step are not determined by the method described here. 5.2 and 5.3 show the differences that occur between the determination of the content of organic halogenated compounds and inorganic halogen BS EN 50642:2018EN 50642:2018 (E) 6 compounds. The inorganic halogen compounds in the material can have
34、its origin as an additive deliberately added to the material or as an impurity. 5.2 Organic halogen compounds Organic compounds containing halogens are known under several names. Different expressions are used like organohalogens, halogenated compounds, halocarbons or organic halides. They are all s
35、ubstances in which one or more carbon atoms are linked by covalent bonds to one or more halogen atoms. Among the organohalogens, some of them are efficient flame retardants. Chlorinated, brominated and fluorinated organohalogens are used separately or in combination. Organohalogens will be converted
36、 into inorganic halides by combustion and will then be absorbed or dissolved in an aqueous solution. This allows the subsequent analysis of halogen content. 5.3 Inorganic halogen compounds Inorganic compounds containing halogens are known as inorganic halides. Inorganic halides used as additives are
37、 salts between a halogen and a metal linked together with an ionic bond, for example magnesium chloride (MgCl2), potassium bromide (KBr) or sodium fluoride (NaF). These salts may have varying degrees of solubility in water. However, this limitation is considered as not significant as no example has
38、been found where inorganic halides have been used in CMS products. Impurities containing inorganic halides will occur in several additives used in polymers. They can occur as impurities in, for example, fillers (like CaCl2 in CaCO3), pigments (like TiCl4 in TiO2) or other inorganic additives (like A
39、lCl3 in Al(OH)3). These inorganic halides can have more or less solubility in water, but they will only be measured if they dissolve in the aqueous solution. Investigations have shown that the content of each halogen in impurities in inorganic additives for CMS products is low and therefore does not
40、 significantly contribute to the total content of each halogen. Insoluble inorganic halides will not be considered and will not be measured by the method described here. Examples of insoluble inorganic halides are halide salts of silver and barium (AgCl, AgBr and BaCl2). Soluble inorganic halides wi
41、ll be dissolved in the aqueous solution and will be measured together with halides coming from the combustion of the organohalogens. 6 Classifications, limits and declaration 6.1 Classification 6.1.1 Not declared 6.1.2 Halogen free 6.2 Limits CMS components or products classified according to 6.1.2
42、shall comply with the following specified limits: fluorine content (F) 0,30 % chlorine content (Cl) 0,15 % bromine content (Br) 0,15 % iodine content (I) 0,30 % total halogen content: fluorine content (F) + chlorine content (Cl) + bromine content (Br) + iodine content (I) 0,40 % 6.3 Declaration A CM
43、S component or product classified according to 6.1.2 can be declared as “halogen free according to EN 50642” if the CMS component or product meets the requirements of 6.2. BS EN 50642:2018EN 50642:2018 (E) 7 7 Reagents and control mixtures 7.1 Reagents 7.1.1 General All reagents shall be at least of
44、 analytical grade and suitable for the specific purposes, see Clause 12. 7.1.2 Water The water shall be grade 1 as specified in EN ISO 3696. 7.1.3 Absorption solution 1, for the determination of fluorine, chlorine and bromine The nature and concentration of solution 1 may depend on the end-determina
45、tion technique and on the expected content of halogens. For example: water (7.1.2); or 0,3 mol/l potassium or sodium hydroxide solution: dissolve 16,8 g of KOH or 12,0 g of NaOH pellets in water (7.1.2) and dilute to 1 l; or carbonate/bicarbonate solution: dissolve 2,52 g sodium bicarbonate NaHCO3 a
46、nd 2,54 g sodium carbonate Na2CO3 in water (7.1.2) and dilute to 1 l. 7.1.4 Absorption solution 2 for the determination of iodine Solution 2 shall be ascorbic acid-solution, (C6H8O3), w = 1 %. 7.1.5 Oxygen The oxygen shall be free of combustible material, available at a pressure of 3 MPa to 4 MPa (3
47、0 atm to 40 atm) (e.g. medical grade). 7.1.6 Combustion enhancer The combustion enhancer may be, for example, paraffin. 7.2 Control samples Table A.1 lists examples of control substances that give complete (90 % to 110 %) recovery rate of halogens. By spiking (standard addition) a sample polymer con
48、sidered not to contain any halogen with one or more of these substances, a control sample can be created. The halogen content of this sample shall be within 20 % of the specified pass-fail criteria. Specific polymer samples with a halogen content in the same range can also be used as control samples
49、. 8 Sample preparation The test sample is cut into pieces with a grain size not exceeding 2 mm. NOTE If the grain size is too small, there is a risk of blowing away the test sample when purging and filling the bomb with oxygen. Should this occur, an appropriate method can be adopted to prevent this. A part made of multiple polymeric materials is assessed on its averaged contents. This is achieved by grinding the part to produce a test sample likely to contain a similar ratio of polymeric materials as the origina
