1、Paper and board Sampling to determine average quality The European Standard EN IS0 186:2002 has the status of a British Standard ICs 85.060 BS EN IS0 186:2002 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN IS0 186:2002 Amd. No. National foreword Date Comments This Briti
2、sh Standard is the official English language version of EN IS0 186:2002. It is identical with IS0 186:2002. It supersedes BS EN IS0 186:1996 which is withdrawn. The UKparticipation in its preparation was entrusted to Technical Committee PAU1 1, Methods of test for paper, board and pulps, which has t
3、he responsibility to : - - aid enquirers to understand the text; present to the responsible internationalEuropean committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in
4、 the UK. - A list of organizations represented on this committee can be obtained on request to its secretary. Cros s-r e fer en ces The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section
5、entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Com
6、pliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN IS0 title page, the EN IS0 foreword page, the IS0 title page, pages ii and iii, a blank page, pages 1 to 9, and a back cove
7、r. This British Standard, having been prepared under the direction of the Sector Policy and Strategy Committee for Materials and Chemicals, was published under the authority The BSI copyright date displayed in this document indicates when the document was last issued. of the Standards Policy and Str
8、ategy Committee on 16 May 2002 Amendments issued since publication O BSI 16 May 2002 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 186 March 2002 ICs 85.060 Supersedes EN IS0 186:1996 English version Paper and board - Sampling to determine average quality (IS0 186:2002) Papier et carton -
9、 Echantillonnage pour dterminer la qualit moyenne (IS0 186:2002) Papier und Pappe - Probenahme zur Bestimmung der Durchschnittsqualitt (IS0 186:2002) This European Standard was approved by CEN on 5 March 2002. CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate t
10、he 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 Management Centre or to any CEN member. This European Standard exists in
11、three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of A
12、ustria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FR NORMUNG COMIT EUROPEN DE NORMALISATION M
13、anagement Centre: rue de Stassart, 36 B-1050 Brussels O 2002 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN IS0 186:2002 E EN IS0 186:2002 I CORRECTED 2002-04-24 I Foreword This document (IS0 186:2002) has been prepared by Technic
14、al Committee ISO/TC 6 “Paper, board and pulps“ in collaboration with Technical Committee CEN/TC 172 “Pulp, paper and board“, 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,
15、 at the latest by September 2002, and conflicting national standards shall be withdrawn at the latest by September 2002. This document supersedes EN IS0 186:1996. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement
16、this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard IS0 186:2002 ha
17、s been approved by CEN as a European Standard without any modifications. EN IS0 186:2002 INTERNATIONAL STANDARD IS0 186 Fourth edition 2002-03-1 5 Paper and board - Sampling to determine average quality Papier et carton - chantillonnage pour dterminer la qualit moyenne Reference number IS0 186:2002(
18、E) Icsid FDParemi ihTs PDF file rnac ytnoaie nrnt deddebyfepca.se In ccaocnadrw eith Aebods licsneinlop gic,y this file rnairp eb yntiv ro deewb detu slahl ton ide ebtlnu desse tt ehyfepacse whice era hrnl era deddebicsnede to i dnanstlaled t noeh corntupfrep reornrign tide ehti.gn In wodnlidaogn th
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21、b nevwo. o IS02002 Athgir Ils serevr.de selnus towrehise specfi,dei trap on fo this ilbupctanoi may cudorper ebtu ro deziliyna ni de fornr yb ro narn y,snae lecetrinoc rn roecinahcal, inclidutohp gnocpoiyrn dna gnicrfoilrn, wittuoh reprnissii non writif gnrorn ietreh ISa Ot tserdda ehs lebwo I roSOs
22、 membre ydob in teh ctnuoo yrfttseuqer ehe.r IS0 cirypothg fofice saCe tsopale 65 eneG 1121-HC 02 av leT. 4 + 10 947 22 1 11 xaFO 947 22 14 + 9 74 E-mail coirypthgiso.c h Web ww.wiso.ch Prnietdi nS wztierland II 0 ISO- 2002 AlIr ithgsr ese devr EN IS0 186:2002 Foreword IS0 (the International Organiz
23、ation for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established
24、 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. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. I
25、nternational Standards are drafted in accordance with the rules given in the ISOAEC Directives, Part 3 The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Public
26、ation as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. IS0 shall not be held responsible for identifying any or all
27、such patent rights. IS0 186 was prepared by Technical Committee ISO/TC 6, Paper, board and pulps, Subcommittee SC 2, Tesf mefhods and qualify specificafions for paper and board. This fourth edition cancels and replaces the third edition (IS0 186:1994), which has been technically revised. Annex A for
28、ms a normative part of this International Standard. . 111 EN IS0 186:2002 INTENRATIONAL TSANDADR EN IS0 186:2002 IS: 68 1 02002( E) Paper and board - Sampling to determine average quality 1 Scope This International Standard specifies a method of obtaining a representative sample from a lot of paper
29、or board, including solid and corrugated fibreboard (see IS0 4046), for testing to determine whether or not its average quality complies with set specifications. It defines the conditions which apply when sampling is carried out to resolve disputes between buyer and seller relating to a defined lot
30、of paper or board, which has been or is being delivered. NOTE 1 invalid in the absence of agreement to the contrary. If less than 50 % of the lot is available for sampling, then sampling in terms of this International Standard will be The method is unsuitable for determining the variability within a
31、 lot. In cases where International Standards make reference to sampling according to this standard but where such sampling is impossible, impractical or inappropriate, and where no dispute is involved, guidance is given in normative annex A. NOTE 2 Information on the preparation of test pieces is gi
32、ven in the appropriate International Standards. 2 Normative reference The following normative document contains provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these public
33、ations do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent edition of the normative document indicated below. For undated references, the latest edition of the normative document referred to appli
34、es. Members of IS0 and IEC maintain registers of currently valid International Standards. IS0 4046, Paper, board, pulp and relafed ferms - Vocabulary 3 Terms and definitions For the purposes of this International Standard, the following terms and definitions apply. 3.1 lot aggregate of paper or boar
35、d of a single kind with specified characteristics produced under conditions that are presumed uniform, and available for sampling at one time NOTE A lot comprises one or more nominally identical units. Where the material to be tested has already been incorporated into a manufactured article (for exa
36、mple a packing case), the lot is the aggregate of such articles of a single kind, of specified characteristics. 1 EN IS0 186:2002 3.2 unit component of a lot which may be in the form of a reel, a bale, a bundle, a parcel, the contents of a packing case, a pallet load, etc. See Figure 1 3.3 sheet are
37、a of paper or board taken from the selected units See Figure 1 3.4 specimen area of paper or board cut to given dimensions, from the sheets (or manufactured articles) See Figure 1. 3.5 sample aggregate of all the specimens taken from the lot to provide information on the average quality of the lot a
38、nd possibly serve as a basis for a decision on the lot See Figure 1 3.6 test piece piece or pieces of paper or board on which the measurement is carried out in accordance with the stipulations of the method of test See Figure 1. NOTE several specimens. The test piece is generally taken from a specim
39、en. In some instances, the test piece may be the specimen itself, or 3.7 selected at random taken in such a way that each part of the whole has an equal chance of being selected 4 Principle Selection of the sheets at random from production units selected at random from a lot of paper or board. Furth
40、er subdivision and combination of these sheets to provide the specimens of the sample from which the test area or test pieces will be taken. 2 EN IS0 186:2002 Size of lot, number of units n 1 to 5 6 to 399 400 or more 1 Number of selected units Method of selection - All Jpp At random 20 At random 9
41、9 n L L 3 Key 1 Lot 2 Unit 3 Sheet 4 Specimen 5 Sample 6 Test pieces Figure 1 L / o 4 O00 6 5 Procedure 5.1 Selection of units Select the units to be sampled according to Table 1 The units selected should be intact and in good external condition 5.2 Selection of sheets For each unit withdrawn from t
42、he lot, proceed as described in 5.2.1 to 5.2.3. 5.2.1 If the unit is a package that can be and may be completely unwrapped, proceed as follows. Units that can be unwrapped 3 EN IS0 186:2002 Number of sheets in the lot 5.2.1.1 When the unit is not subdivided (with or without a pallet) Minimum number
43、of sheets to be taken from the lot Avoiding all damaged sheets and the three outermost undamaged sheets, take at random, in conformity with Table 2, the same number of sheets from each unit selected (see 5.1) such that the number of sheets taken from the lot is sufficient to provide enough sample fo
44、r the required testing. If known. mark the machine direction on the sheets. u 1 O00 10 1 O01 to5000 15 5 O00 20 5.2.1.2 without a pallet) When the unit is composed of elements (reams or parcels, etc.) packaged together (with or Assemble all the selected units (see 5.1) and select elements from the u
45、nits in the same way that units were selected from the lot in 5.1. Avoiding all damaged sheets, take at random, in conformity with Table 2, the same number of sheets from each element selected, such that the number of sheets taken from the lot is sufficient to provide enough sample for the required
46、testing. If known, mark the machine direction on the sheets. 5.2.1.3 When the unit is a reel Remove all damaged layers from the outside of each selected reel (see 5.1) plus three undamaged layers of paper (grammage less than 225 g/m2) or one undamaged layer of board (grammage equal to or greater tha
47、n 225 g/m2), whichever is appropriate. Cut the same number of sheets from each reel such that the number of sheets taken from the lot is sufficient to provide enough sample for the required testing and the number of sheets taken from the lot does not exceed 20. Vary the position of the sheets from e
48、ach reel so that each 400 mm section across the reel is equally represented. NOTE 1 allowed to fall to each side, the reel removed and the sheets cut from each pile. The sheets may be taken directly from the reel or the reel may be cut across its full width, the pile of cut sheets NOTE 2 paper or bo
49、ard. The term reel is used throughout this International Standard but the same procedure is equally applicable to a roll of 5.2.2 Units that cannot/may not be unwrapped If the unit is a package that cannot be or should not be completely unwrapped, for example a reel, pallet or possibly a ream, in store or selected by customs, assemble the selected units (see 5.1) and proceed as follows. 5.2.2.1 Known machine direction If the machine direction is known, cut a window from each unit of at least 300 mm 450 mm, with the long dimension in the machine direction. Vary the position o
