1、raising standards worldwide NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI Standards Publication BS ISO 7210:2013 Routine analytical cigarette- smoking machine Additional test methods for machine verificationBS ISO 7210:2013 BRITISH STANDARD National foreword This British
2、 Standard is the UK implementation of ISO 7210:2013. It supersedes BS 5668-2:1997, which is withdrawn. The UK participation in its preparation was entrusted to T e c h n i c a l C o m m i t t e e A W / 4 0 , T o b a c c o a n d t o b a c c o p r o d u c t s . A list of organizations represented on t
3、his 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 Standards Institution 2013. Published by BSI Standards Limited 2013. ISBN 978 0 580 73782
4、 4 ICS 65.160 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2013. Amendments issued since publication Date T e x t a f f e c t e dBS ISO 7210:2013
5、ISO 2013 Routine analytical cigarette-smoking machine Additional test methods for machine verification Machine fumer analytique de routine pour cigarettes Mthodes dessais complmentaires pour la vrification de la machine INTERNATIONAL STANDARD ISO 7210 Third edition 2013-01-15 Reference number ISO 72
6、10:2013(E)BS ISO 7210:2013 ISO 7210:2013(E) ii ISO 2013 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2013 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including phot
7、ocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Te l . + 4 1 2 2 7 4 9 0 1 1 1 Fax + 41
8、22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in SwitzerlandBS ISO 7210:2013ISO 7210:2013(E) ISO 2013 All rights reserved iii Contents Page Foreword iv 1 Scope . 1 2 Normative references 1 3 Terms and definitions . 1 4 Determination of pressure drop 2 4.1 Principle 2 4.2 Apparatus 2
9、 4.3 Test atmosphere 3 4.4 Procedure 3 4.5 Expression of results 4 5 Determination of significant puff profile parameters . 4 5.1 Principle 4 5.2 Apparatus 4 6 Verification of restricted smoking . 6 6.1 Principle 6 6.2 Apparatus 6 6.3 Procedure 6 6.4 Expression of results 7BS ISO 7210:2013 ISO 7210:
10、2013(E) Foreword ISO (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 interested in a subject for w
11、hich 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 Commission (IEC) on all
12、 matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are c
13、irculated to the member bodies for voting. Publication 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 document may be the subject of patent rights. ISO shall not be held resp
14、onsible for identifying any or all such patent rights. ISO 7210 was prepared by Technical Committee ISO/TC 126, Tob ac c o and t ob ac c o pr o duc t s, Subcommittee SC 1, Physical and dimensional tests. This third edition cancels and replaces the second edition (ISO 7210:1997), which has been techn
15、ically revised. iv ISO 2013 All rights reservedBS ISO 7210:2013INTERNATIONAL ST ANDARD ISO 7210:2013(E) Routine analytical cigarette-smoking machine Additional test methods for machine verification 1 Scope This International Standard specifies additional test methods for routine analytical cigarette
16、-smoking machines intended to check the conformity of these machines with ISO 3308:2012, Clause 4. It only establishes additional test methods for smoking machines and does not deal with actual smoking, which is described in other International Standards. It is composed of three sections relating to
17、: the determination of pressure drop (Clause 4); the determination of significant puff profile parameters (Clause 5); the verification of restricted smoking (Clause 6). NOTE There are more possibilities to determine the aforementioned parameters. Systems giving the same results and accuracies can be
18、 used. The certificate of compliance with this International Standard may be obtained from machine manufacturer. The frequency to carry out these additional test methods for smoking machines verification is not part of the scope of this International Standard. 2 Normative references The following re
19、ferenced 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 any amendments) applies. ISO 3308:2012, Routine analytical cigarette-smoking machine Defin
20、itions and standard conditions ISO 3402, Tobacco and tobacco products Atmosphere for conditioning and testing 3 Terms and definitions For the purposes of this International Standard, the following terms and definitions apply. 3.1 pressure drop static pressure difference between the two ends of a pne
21、umatic circuit (of a smoking machine) when it is traversed by an air flow under steady conditions in which the measured volumetric flow, under standard conditions, at the output end is 17,5 ml/s. 3.2 puff profile flow rate measured directly behind the butt end of the cigarette, and depicted graphica
22、lly as a function of time Note 1 to entry: For the determination of the puff profile, the cigarette could be replaced by a suitable device with a known pressure drop similar to the pressure drop of the cigarette. 3.3 restricted smoking condition that exists when the butt end of a cigarette is closed
23、 to the atmosphere between successive puffs ISO 2013 All rights reserved 1BS ISO 7210:2013 ISO 7210:2013(E) 3.4 puff duration interval of time during which the port of a smoking machine is connected to the suction mechanism 3.5 puff volume volume leaving the butt end of a cigarette and passing throu
24、gh the smoke trap of a smoking machine 3.6 smoulder stream smoke all smoke which leaves the butt end of the cigarette during the interval of time between successive puffs 3.7 port aperture of the suction mechanism through which a puff is drawn and to which is attached a smoke trap 3.8 channel elemen
25、t of a smoking machine consisting of one or more cigarette holders, one trap and a means of drawing a puff through the trap 4 Determination of pressure drop 4.1 Principle Measurement, under well-specified air flow conditions, of the pressure drop of a smoking machine by means of an appropriate manom
26、eter. 4.2 Apparatus The whole of the flow path between the butt end of the cigarette and the suction mechanism shall offer the least possible resistance and its pressure drop shall not exceed 300 Pa. The test apparatus shall be capable of: sucking a constant flow of air which is unaffected by the pr
27、essure drop of the system under test; measuring the pressure drop with known and sufficient accuracy. a) Zero setting manometer 2 ISO 2013 All rights reservedBS ISO 7210:2013ISO 7210:2013(E) b) Air flow setting c) Determination pressure drop PD 1 d) Determination pressure drop PD 2 Key H test head p
28、oint F flowmeter W wide-bore tubing T smoking machine under test M manometer Figure 1 Pneumatic circuit of a typical apparatus NOTE Arrows indicate the direction of air flow. 4.3 Test atmosphere All measurements shall be carried out under standard ambient conditions of temperature and relative humid
29、ity as specified in ISO 3402. 4.4 Procedure 4.4.1 General The f low of air through the smoking machine shall always be in the same direction as during the puffing cycle, i.e. from the cigarette to the suction source. The air used for measurement shall be from the test atmosphere. ISO 2013 All rights
30、 reserved 3Connect the manometer M as indicated in Figure 1a) and set it to zero. BS ISO 7210:2013 ISO 7210:2013(E) 4.4.2 Te s t i n g 4.4.2.1 4.4.2.2 Connect the flowmeter F as indicated in Figure 1b) and establish an air flow of 17,5 ml/s 0,5 ml/s. 4.4.2.3 Disconnect the flowmeter F and if needed
31、in regards to 4.4.2.4 attach a suitable length of wide- bore tubing W to the test head point H as indicated in Figure 1c). Read the pressure, if any, on the manometer M. Record the value as PD 1. 4.4.2.4 Attach the free end of the wide-bore tubing W to the point in the smoking machine from which the
32、 puffing source was disconnected as indicated in Figure 1d). Read the pressure on manometer M. Record the value as PD 2. Calculate the pressure drop (PD 2 PD 1). 4.4.2.5 4.4.2.6 Repeat the operation for each channel of the smoking machine. 4.5 Expression of results The following values shall be reco
33、rded: the pressure drop for each channel, in pascals; the test atmosphere used. 5 Determination of significant puff profile parameters 5.1 Principle Continuous measurement of the flow rate of air of a puff through a pressure drop device of 1 000 Pa 50 Pa (see ISO 3308:2012, 4.3). 5.2 Apparatus The a
34、pparatus shall comprise the elements shown in the principle diagram (Figure 2), i.e. the diagram of elements required for the two alternative measuring systems, A and B, with two different levels of sophistication. 4 ISO 2013 All rights reservedBS ISO 7210:2013ISO 7210:2013(E) y y yB Figure 2 Princi
35、ple diagram 5.2.1 System A The signal delivered by the pressure transducer is linearized by appropriate circuits and transmitted to an integrator and a recording apparatus. The system can record a picture of the puff profile and measure its volume. 5.2.2 System B This system uses digital conversion
36、and a computer to produce the same information as it is given by system A. ISO 2013 All rights reserved 5BS ISO 7210:2013ISO 7210:2013(E) 5.2.3 Requirements for both systems The device shall not increase the pressure drop of the system above the limit of 300 Pa and the overall gain and response of t
37、he system shall be sufficient to visualize the puff profile and determine its significant parameters. A sufficient result will be achieved by the use of elements that fulfil the following conditions: laminar flow element having a nominal pressure drop of 100 Pa 10 Pa at a flow of 17,5 ml/s; pressure
38、 transducer with a suitable range, an accuracy of 5 Pa or better and a minimal response frequency of 1 kHz. The above apparatus provides the means to obtain flow rate and time profiles for puffing as shown in ISO 3308:2012, Annex C. NOTE Measurement of puff volume, by either system A or system B, ca
39、n only be a secondary measurement following calibration by reference to a primary device such as a soap film burette as described in ISO 3308. 5.2.4 Expression of results The following results need to be reported: total drawn puff volume expressed in millilitres; maximum flow rate expressed in milli
40、litres per second; time between starting and reaching the maximum flow rate expressed in seconds; volume drawn after the time the puffing source ceases to apply suction expressed in millilitres; total puff duration time in seconds. The target values for the above parameters are given in ISO 3308:201
41、2, Annex C. 6 Verification of restricted smoking 6.1 Principle Measurement of the volume of the smoulder stream smoke between two puffs for machines of discontinuous function or between two suction strokes for machines of continuous function. NOTE For smoking machines with permanent connection of th
42、e port to the suction device, this test is not necessary. 6.2 Apparatus Apparatus permitting an assembly as shown in Figure 3, so that: the length of a soap film bubble flowmeter does not exceed 12 cm; there is close contact between the smoke port or the cigarette holder, the soap film bubble flowme
43、ter and the cigarette. 6.3 Procedure Smoke a cigarette up to its first half without using the test unit. Introduce and adjust a soap bubble in the soap film bubble flowmeter as described in the suppliers manual. Connect the test unit to the smoke port or cigarette holder and insert the cigarette to
44、it. Carry out the test during smouldering of 6 ISO 2013 All rights reservedBS ISO 7210:2013ISO 7210:2013(E) the second half of the total length of the cigarette. On linear machines the test should be performed for at least 1 min. On rotary machines it should be performed over a full rotation. 6.4 Ex
45、pression of results Note the flow rate of the smoulder stream smoke, in millilitres per minute for each channel of the smoking machine. The result shall not exceed 1 ml/min. Key 1 rubber connection 2 soap film bubble flowmeter 3 cigarette holder or glass tube 4 cigarette Figure 3 Diagram of test app
46、aratus for restricted smoking ISO 2013 All rights reserved 7BS ISO 7210:2013 ISO 7210:2013(E) ISO 2013 All rights reserved ICS 65.160 Price based on 7 pagesThis page deliberately left blankBSI is the independent national body responsible for preparing British Standards and other standards-related pu
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