1、BSI Standards Publication Cigarettes Determination of loss of tobacco from the ends Part 3: Method using a vibro-bench PD ISO/TS 3550-3:2015National foreword This Published Document is the UK implementation of ISO/TS 3550-3:2015. The UK participation in its preparation was entrusted to Technical Com
2、mittee AW/40, Tobacco and tobacco products. 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 British Stand
3、ards Institution 2015. Published by BSI Standards Limited 2015 ISBN 978 0 580 86277 9 ICS 65.160 Compliance with a British Standard cannot confer immunity from legal obligations. This Published Document was published under the authority of the Standards Policy and Strategy Committee on 31 October 20
4、15. Amendments/corrigenda issued since publication Date Text affected PUBLISHED DOCUMENT PD ISO/TS 3550-3:2015 ISO 2015 Cigarettes Determination of loss of tobacco from the ends Part 3: Method using a vibro-bench Cigarettes Dtermination de la perte de tabac par les extrmits Partie 3: Mthode utilisan
5、t une plateforme vibrante TECHNICAL SPECIFICATION ISO/TS 3550-3 Reference number ISO/TS 3550-3:2015(E) First edition 2015-10-01 PD ISO/TS 3550-3:2015 ISO/TS 3550-3:2015(E)ii ISO 2015 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2015, Published in Switzerland All rights reserved. Unless other
6、wise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address b
7、elow or ISOs member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.org PD ISO/TS 3550-3:2015 ISO/TS 3550-3:2015(E)Foreword iv Introduction v 1 Scope . 1 2 N
8、ormative references 1 3 Principle 1 4 Apparatus . 1 5 Sampling 4 6 Procedure. 4 6.1 Conditioning of test sample . 4 6.2 Test portion 4 6.3 Determination . 4 7 Calculation of specific t obac c o fallout v alues . 5 7.1 End-related tobacco fallout 5 7.2 Area-related tobacco fallout 5 8 Test report . 5
9、 Annex A (informative) Analysis for the calculation of the number of cigarettes7 Annex B (informative) Example of counting tray. 8 ISO 2015 All rights reserved iii Contents Page PD ISO/TS 3550-3:2015 ISO/TS 3550-3:2015(E) Foreword ISO (the International Organization for Standardization) is a worldwi
10、de 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 interested in a subject for which a technical committee has been established has the right to be represented on tha
11、t committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures used to develop this docu
12、ment 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 documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directiv
13、es, 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 for identifying any or all such patent rights. Details of any patent rights identified during the developme
14、nt 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 the convenience of users and does not constitute an endorsement. For an explanation on the meaning of ISO spe
15、cific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information. The committee responsible for this document is ISO/TC 126, Tobacco and
16、 tobacco products, Subcommittee SC 1, Physical and dimensional tests. ISO 3550 consists of the following parts, under the general title Cigarettes Determination of loss of tobacco from the ends: Part 1: Method using a rotating cylindrical cage Part 2: Method using a rotating cubic box (sismelatophor
17、e) Part 3: Method using a vibro-bench Technical Specificationiv ISO 2015 All rights reserved PD ISO/TS 3550-3:2015 ISO/TS 3550-3:2015(E) Introduction The loss of tobacco from cigarette ends, which particularly affects short strands, is a nuisance for the industry, as well as for the consumer. From t
18、his standpoint, the greater a cigarettes resistance to loss from its end, the higher its quality. The devices available for measuring such loss of tobacco are based on the principle of mechanically vibrating cigarettes in a cigarette-containing tester. ISO 35501 and ISO 35502 describe two particular
19、 types of device. The first, described in ISO 3550-1, comprises a rotating cylindrical cage through which tobacco is allowed to fall into a weighing vessel. The second, described in ISO 3550-2, uses a cubic box rotating around its main diagonal axis. A third method, based on use of a vibro-bench, vi
20、brating along the horizontal direction is described in this part of ISO 3550. The first system (ISO 3550-1) principally permits determination of losses undergone by the cigarette during the manufacturing and packaging processes, while the second method (ISO 3550-2) can be used to estimate tobacco lo
21、sses undergone throughout the distribution network and in the smokers pocket. The third method (ISO/TS 3550-3) is applicable to the determination of tobacco losses that the cigarette is likely to undergo throughout its lifecycle. The three methods were designed for different application fields by us
22、ing different simulation test devices with completely distinct mechanical structures, so the physical meanings of results given with three methods are different. The absolute mean values between the three methods are not comparable and these methods cannot be substituted for one another, although th
23、ere can be some correlation between them. Therefore, these methods are not mutually exclusive. ISO 2015 All rights reserved v PD ISO/TS 3550-3:2015 Cigarettes Determination of loss of tobacco from the ends Part 3: Method using a vibro-bench 1 Scope This part of ISO 3550, as Technical Specification,
24、specifies a method for the determination of loss of tobacco from cigarette ends using a vibro-bench. This method applies to the determination of loss of tobacco from cigarette ends in manufacturing site, throughout the distribution network and also while in the smokers pocket. NOTE Two other methods
25、 for the determination of loss of tobacco from the ends, using a rotating cylindrical cage and a cubic rotating box (sismelatophore), are described in ISO 3550-1 and ISO 3550-2, respectively. 2 Normative references The following documents, in whole or in part, are normatively referenced in this docu
26、ment and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 2971, Cigarettes and filter rods Determination of nominal diameter Method using a non-co
27、ntact optical measuring apparatus ISO 3402, Tobacco and tobacco products Atmosphere for conditioning and testing ISO 8243, Cigarettes Sampling 3 Principle A test portion of a given number of cigarettes is placed in a vibro-bench, the longitudinal vertical section of which conforms to a cosine functi
28、on. During the test, the vibro-bench reciprocates along the horizontal direction and the cigarettes vibrate inside the bench. The amount of tobacco that falls out from the open end(s) of the cigarettes is determined gravimetrically. 4 Apparatus 4.1 Conditioning chamber, capable of controlling the en
29、closed atmosphere in accordance with the requirements of ISO 3402. 4.2 Cigarette ends loss test unit, complying with the following requirements: a) main part of the test unit shall consist of a vibro-bench, an actuating device, an analytical balance, control unit etc. See Figure 1 for a schematic di
30、agram of the test unit; TECHNICAL SPECIFICATION ISO/TS 3550-3:2015(E) ISO 2015 All rights reserved 1 PD ISO/TS 3550-3:2015 ISO/TS 3550-3:2015(E) 1 2 3 4 5 6 Key 1 cover 2 vibro-bench 3 tray 4 actuating device 5 analytical balance 6 control unit Figure 1 Schematic diagram of a tester b) longitudinal
31、vertical section of the vibro-bench is shown in Figure 2; Key L length of the vibro-bench, being equal to (208,0 1,0) mm H distance between the cover and the trough of the cosine function, being equal to (13,0 0,5) mm Figure 2 Longitudinal vertical section of the vibro-bench c) the longitudinal vert
32、ical section of the vibro-bench shall conform to a cosine function which is shown in Formula (1): (1) where A 1 is the amplitude of the cosine function, being equal to (1,3 0,1) mm; is the wavelength (the distance between each trough), being equal to (26,0 0,2) mm; x is the abscissa of the centrelin
33、e of the waveform; y is the ordinate corresponding to x; d) vibro-bench is made of stainless steel with mirror polish surface;2 ISO 2015 All rights reserved PD ISO/TS 3550-3:2015 ISO/TS 3550-3:2015(E) e) top view of the vibro-bench is shown in Figure 3; B B C 1234 Key 1 cigarette 2 adjustable endpla
34、te 3 gap D 4 gap E (if present) B gap width C test area Figure 3 Top view of the vibro-bench For plain cigarettes, the gap E of the same width shall be set at the opposite end of the gap D in test area. B denotes the width of the gap, being equal to (10,0 1,0) mm. C denotes the effective width of th
35、e vibro-bench, being equal to the length of cigarette plus (5,0 1,0) mm. f) the vibro-bench reciprocates with the vibration frequency of (300 1) times per minute, i.e. 5 Hz, and the vibration amplitude of (19,5 0,5) mm. The vibro-bench will stop automatically when the specified number of vibrations
36、is reached. For normal testing, the number of vibrations of (600 1) is specified; g) the tobacco which has fallen out of the cigarette ends is collected in the collection tray attached to the analytical weighing balance kept under the vibro-bench (see Figure 1). The tobacco thus collected is weighed
37、 accurately to 0,001 g after the vibration experiment is completed and results are stored in the control unit through a communication interface. 4.3 Device for the measurement of the diameter of the cigarettes, in accordance with ISO 2971. 4.4 Ruler with graduations in millimetres, to an accuracy of
38、 0,5 mm. 4.5 Counting trays (optional), for filling a defined number of cigarettes for use as the test portion. The dimensions of the tray depend on the number of cigarettes in the test portion which, in turn, depends on the diameter. Annex B shows an example of a counting tray. NOTE A counting tray
39、 is a useful device for selecting a defined number of cigarettes in a time-saving and error-free manner. The dimensions of the counting tray depend on the number of cigarettes and their diameter. The example given in Annex B is a counting tray for 20 cigarettes of 7,8 mm in diameter. ISO 2015 All ri
40、ghts reserved 3 PD ISO/TS 3550-3:2015 ISO/TS 3550-3:2015(E) 5 Sampling Carry out sampling in accordance with appropriate procedures given in ISO 8243 where applicable or, by another procedure relevant to the purpose of the test. In the latter case, a reference to, or details of, the sampling procedu
41、re used shall be given in the test report, as appropriate. 6 Procedure 6.1 Conditioning of test sample Place the test sample in the conditioning chamber (4.1) and condition the sample in accordance with ISO 3402. 6.2 Test portion Select the number of cigarettes according to the measured diameter as
42、specified in Table 1. Table 1 The number of cigarettes for one test portion Diameter of the cigarettes tested (mm) Number of cigarettes for one test portion 4,88 D 5,03 31 5,03 D 5,20 30 5,20 D 5,37 29 5,37 D 5,57 28 5,57 D 5,77 27 5,77 D 6,00 26 6,00 D 6,24 25 6,24 D 6,50 24 6,50 D 6,78 23 6,78 D 7
43、,09 22 7,09 D 7,42 21 7,42 D 7,80 20 7,80 D 8,21 19 8,21 D 8,66 18 8,66 D 9,17 17 9,17 D 9,75 16 NOTE The analysis for calculation of the number of cigarettes is shown in Annex A. 6.3 Determination 6.3.1 Testing to be carried out in the test atmosphere specified in ISO 3402. 6.3.2 Determine the mean
44、 length (l) of the cigarettes in the test portion using the ruler (4.4), set the adjustable end plate to give a distance (C) between the end faces of l + (5 1) mm. 6.3.3 Determine the mean diameter (D) of the cigarettes to be tested to the nearest 0,001 mm in accordance with ISO 2971. 6.3.4 Place th
45、e test portion into the vibro-bench, the arrangement of which is shown in Figure 3.4 ISO 2015 All rights reserved PD ISO/TS 3550-3:2015 ISO/TS 3550-3:2015(E) 6.3.5 Cover the vibro-bench, start the tester to carry out the test. 6.3.6 Once the vibro-bench stops after vibrating for (600 1) times, weigh
46、 the tobacco collected in the collection tray attached to the analytical balance to the nearest 0,001 g. 6.3.7 Discard the tested cigarettes and tobacco collected in the collection tray. 6.3.8 The control unit calculates, displays, and prints the results. 7 Calculation of spec ific t obac c o fallou
47、t v alues 7.1 End-related tobacco fallout The mass of the end-related tobacco fallout, m LOE , in milligrams per open end, is given by Formula (2): (2) where m L is the mass of fallout, in milligrams, related to the test portion; q is the number of cigarettes in the test portion; q OE is the number
48、of open ends per cigarettes. NOTE q OEis equal to 1 for filter cigarettes and 2 for plain cigarettes. 7.2 Area-related tobacco fallout The mass of the area-related tobacco fallout, m LOA , in milligrams per square centimetre of open end, is given by Formula (3): (3) where m L is the mass of fallout,
49、 in milligrams, related to the test portion; A is the area, in square centimetres, of one open end, to the nearest 0,01 cm 2 ; q is the number of cigarettes in the test portion; q OE is the number of open ends per cigarettes. NOTE q OEis equal to 1 for filter cigarettes and 2 for plain cigarettes. 8 Test report The test report shall include the following information: all informat
