1、March 2017 English price group 11No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 85.080.20!%c+,“2640809www.din.deDI
2、N EN ISO 12625-6Tissue paper and tissue products Part 6: Determination of grammage (ISO 126256:2016);English version EN ISO 126256:2016,English translation of DIN EN ISO 12625-6:2017-03TissuePapier und TissueProdukte Teil 6: Bestimmung der flchenbezogenen Masse (ISO 126256:2016);Englische Fassung EN
3、 ISO 126256:2016,Englische bersetzung von DIN EN ISO 12625-6:2017-03Papier tissue et produits tissue Partie 6: Dtermination du grammage (ISO 126256:2016);Version anglaise EN ISO 126256:2016,Traduction anglaise de DIN EN ISO 12625-6:2017-03SupersedesDIN EN ISO 126256:200505www.beuth.deDocument compri
4、ses 18 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.03.17 DIN EN ISO 12625-6:2017-03 2 A comma is used as the decimal marker. National foreword This document (EN ISO 12625-6:2016) has been prepared by Working Committee WG 8
5、Test methods for soft tissue papers” (Secretariat: DIN, Germany) of Technical Committee CEN/TC 172 “Pulp, paper and board” in collaboration with Technical Committee ISO/TC 6 “Paper, board and pulps”. The secretariat of CEN/TC 172 is held by DIN-Normenausschuss Paper, Pappe und Faserstoff (DIN Stand
6、ards Committee Paper, board and pulps). The responsible German body involved in its preparation was DIN-Normenausschuss Papier, Pappe und Faserstoff (DIN Standards Committee Paper, Board and Pulps). Working Committee NA 074-02-05 AA Prfverfahren fr Tissue-Papier und Tissue-Produkte. The DIN Standard
7、s corresponding to the International Standards referred to in this document are as follows: ISO 186 DIN EN ISO 186 ISO 187 DIN EN ISO 20187 ISO 287 DIN EN ISO 287 ISO 5725-1 DIN ISO 5725-1 ISO 15755 DIN EN ISO 15755 Amendments This standard differs from DIN EN ISO 12625-6:2005-05 as follows: a) prec
8、ision data in Annex A have been updated; b) the standard has been editorially revised. Previous editions DIN 54540-2: 1989-06 DIN EN 12625-6: 1999-03 DIN EN ISO 12625-6: 2005-05 DIN EN ISO 12625-6:2017-03 3 National Annex NA (informative) Bibliography DIN EN 20187, Paper, board and pulps Standard at
9、mosphere for conditioning and testing and procedure for monitoring the atmosphere and conditioning of samples DIN EN ISO 186, Paper and board Sampling to determine average quality DIN EN ISO 287, Paper and board Determination of moisture content of a lot Oven-drying method DIN EN ISO 15755, Paper an
10、d board Estimation of contraries DIN ISO 5725-1, Accuracy (trueness and precision) of measurement methods and results Part 1: General principles and definitions DIN EN ISO 12625-6:2017-03 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 12625-6 December 201
11、6 ICS 85.060 Supersedes EN ISO 12625-6:2005English Version Tissue paper and tissue products - Part 6: Determination of grammage (ISO 12625-6:2016) Papier tissue et produits tissue - Partie 6: Dtermination du grammage (ISO 12625-6:2016) Tissue-Papier und Tissue-Produkte - Teil 6: Bestimmung der flche
12、nbezogenen Masse(ISO 12625-6:2016) This European Standard was approved by CEN on 21 November 2016. 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-t
13、o-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by transla
14、tion under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland,
15、 Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION CO
16、MIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 12625-6:2016 EEuropean foreword .31 Scope . 52 No
17、rmative references 53 Terms and definitions . 54 Principle 55 Apparatus . 66 Sampling 67 Conditioning 68 Preparation of test pieces . 68.1 General . 68.2 Cutting of the test pieces 78.2.1 General 78.2.2 Size of test pieces . 78.2.3 Number of test pieces 78.3 Uncut finished products 78.3.1 General 78
18、3.2 Size of test pieces . 78.3.3 Number of test pieces 79 Procedure. 89.1 Determination of the mass of the test pieces 89.2 Determination of the area of the test pieces . 810 Calculation 810.1 General . 810.2 Mean and standard deviation of grammage 911 Test report . 9Annex A (informative) Precision
19、 11Bibliography .14Contents PageDIN EN ISO 12625-6:2017-03 EN ISO 12625-6:2016 (E)2Foreword .4European foreword This document (EN ISO 12625-6:2016) has been prepared by Technical Committee ISO/TC 6 “Paper, board and pulps“ in collaboration with Technical Committee CEN/TC 172 “Pulp, paper and board”
20、the secretariat of which is held by DIN. 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 2017, and conflicting national standards shall be withdrawn at the latest by June 2017. Attention is d
21、rawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 12625-6:2005. According to the CEN-CENELEC Internal Regulations, the
22、 national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia
23、 Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 12625-6:2016 has been approved by CEN as EN ISO 12625-6:2016 without any modification. DIN EN ISO 12625-6:
24、2017-03 EN ISO 12625-6:2016 (E)3 ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body inter
25、ested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical
26、 Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO docume
27、nts should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible
28、 for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for th
29、e convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT
30、) see the following URL: www.iso.org/iso/foreword.html.This document was prepared by the European Committee Standardization (CEN) Technical Committee CEN/TC 172, Pulp, paper and board, in collaboration with ISO Technical Committee TC 6, Paper, board and pulps, Subcommittee SC 2, Test methods and qua
31、lity specifications for paper and board, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).This second edition cancels and replaces the first edition (ISO 12625-6:2005), which has been technically revised with the following changes:a) a new subclause, 8
32、3, has been added;b) formulae were added to clarify Clause 10;c) in Annex A, the precision data has been updated;d) this document has been editorially updated.A list of all parts in the ISO 12625 series can be found on the ISO website.DIN EN ISO 12625-6:2017-03 EN ISO 12625-6:2016 (E)4 1 ScopeThis
33、document specifies a test method for the determination of grammage of tissue paper and tissue products.2 Normative referencesThe 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 e
34、dition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 186, Paper and board Sampling to determine average qualityISO 187, Paper, board and pulps Standard atmosphere for conditioning and testing and procedure for monitoring t
35、he atmosphere and conditioning of samples3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/
36、 ISO Online browsing platform: available at http:/www.iso.org/obp3.1grammagegmass of a unit area of tissue paper or tissue product as determined by the procedure in this documentNote 1 to entry: Grammage is expressed in grams per square metre (g/m2).4 PrincipleThe mass and area of a test piece or te
37、st pieces of either a tissue paper or a tissue product is measured and the grammage is calculated as the mass per unit area of the test pieces taken. For finished paper products, the grammage may also be calculated from the mass and area of a specified number of the finished tissue product items. Pr
38、ecision data are available in Annex A.DIN EN ISO 12625-6:2017-03 EN ISO 12625-6:2016 (E)5 5 Apparatus5.1 GeneralThe balance shall be placed on a horizontal surface free from externally induced vibrations.5.2 Cutting deviceThe cutting device shall be capable of repeatedly cleanly cutting test pieces
39、of the same nominal size, whose area falls within 1,0 % of a known area. This shall be checked frequently by measurement and, provided that the above accuracy is attained, the mean area obtained in these checks shall be used for calculating grammage.With certain types of tissue paper and tissue prod
40、uct, it will be found, after carrying out this determination of area, that test pieces cannot be cut with the accuracy just defined. In such instances, the area of every test piece shall be determined individually.5.3 BalanceThe device to determine the balance shall have a measuring accuracy of 0,00
41、1 g.5.4 Length measurement deviceThe length measurement device shall be a ruler, an electronic digital ruler, a scanner or any other device with a minimum measuring accuracy of 0,5 mm.6 SamplingIf the tests are being made to evaluate a lot, the sample shall be selected in accordance with ISO 186.If
42、the tests are being made on another type of sample, make sure that all specimens taken are representative of the sample. Each test piece shall be free from perforations and faults not normally inherent in the tissue.7 ConditioningCondition the samples according to ISO 187 and keep them in the standa
43、rd atmosphere throughout the test.Conditioning shall be done prior to the preparation of test pieces.8 Preparation of test pieces8.1 GeneralTest pieces shall be free from areas containing creases, dirt or visible damage. Test pieces shall be made of either areas cut from specimens of tissue paper or
44、 tissue products (see 8.2), or made of whole finished products (see 8.3).DIN EN ISO 12625-6:2017-03 EN ISO 12625-6:2016 (E)6 8.2 Cutting of the test pieces8.2.1 GeneralIn the case where test pieces are cut from specimens of tissue paper or tissue products, the test sheet or stack of superimposed tes
45、t sheets can be placed between two supporting sheets of paper, such as office copy paper, in order to obtain test pieces with clean cut edges and dimensions of the accuracy specified.8.2.2 Size of test piecesSince tissue paper and tissue products vary greatly in dimensions, it is only possible to gi
46、ve general guidance regarding the dimension of the test piece or test pieces.The minimum area of an individual test piece shall be at least 100 cm2. One test piece may, if necessary, be composed of several smaller pieces.8.2.3 Number of test piecesUsing the cutting device (5.2), cut at least 10 test
47、 pieces. The mass of a minimum area of 1 000 cm2shall be determined, and convenient larger areas shall be taken in compliance with the provisions of this document.8.3 Uncut finished products8.3.1 GeneralIn the case where test pieces are composed of finished tissue products, test pieces shall lie unf
48、olded and flat with no tension applied.If a scanner is used for this measurement, ensure that the scanner-cover is sufficient in size to cause the item to lie flat.If a ruler is used, it shall be of dimensions larger than the test piece.8.3.2 Size of test piecesSince tissue paper and tissue products vary greatly in dimensions, it is only possible to give general guidance regarding the dimension of the test piece or test pieces.Using a measuri
