BS ISO 7210-2013 Routine analytical cigarette-smoking machine Additional test methods for machine verification《吸烟机的常规分析 机器验证的补充试验方法》.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 7210:2013Routine analytical cigarette-smoking machine Additional test methods for machine verificationBS ISO 7210:2013 BRITISH STANDARDNational forewordThis British Standa

2、rd 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 It supersedes BS 5668-2:1997, which is withdrawn.The UK participation in its preparation was entrusted to T e c h n i c a l C o m m i t t e e A W / 4 0 , T o b a c c o a n d t o b a c c o p r o d u c t s .A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 this commi

3、ttee 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 ICS 65.1

4、60 Compliance with a British Standard cannot confer immunityfrom legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2013.Amendments issued since publicationDate T e x t a f f e c t e dBS ISO 7210:2013 ISO 2013Routine

5、 analytical cigarette-smoking machine Additional test methods for machine verificationMachine fumer analytique de routine pour cigarettes Mthodes dessais complmentaires pour la vrification de la machineINTERNATIONAL STANDARDISO7210Third edition2013-01-15Reference numberISO 7210:2013(E)BS ISO 7210:20

6、13 ISO 7210:2013(E)ii ISO 2013 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2013All 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 photocopying, or posting on the

7、 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 officeCase postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org

8、Web www.iso.orgPublished in SwitzerlandBS ISO 7210:2013ISO 7210:2013(E) ISO 2013 All rights reserved iiiContents PageForeword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Determination of pressure drop 24.1 Principle 24.2 Apparatus 24.3 Test atmosphere 34.4 Procedure 34.5 Expres

9、sion of results 45 Determination of significant puff profile parameters . 45.1 Principle 45.2 Apparatus 46 Verification of restricted smoking . 66.1 Principle 66.2 Apparatus 66.3 Procedure 66.4 Expression of results 7BS ISO 7210:2013 ISO 7210:2013(E)ForewordISO (the International Organization for St

10、andardization) 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 which a technical committee has been established has the rig

11、ht 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 matters of electrotechnical standardization.International

12、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 circulated to the member bodies for voting. Publication as an

13、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 responsible for identifying any or all such patent rights.ISO 7210

14、 was prepared by Technical Committee ISO/TC 126, Tobacco and tobacco products, Subcommittee SC 1, Physical and dimensional tests.This third edition cancels and replaces the second edition (ISO 7210:1997), which has been technically revised.iv ISO 2013 All rights reservedBS ISO 7210:2013INTERNATIONAL

15、 STANDARD ISO 7210:2013(E)Routine analytical cigarette-smoking machine Additional test methods for machine verification1 ScopeThis International Standard specifies additional test methods for routine analytical cigarette-smoking machines intended to check the conformity of these machines with ISO 33

16、08:2012, 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: the determination of pressure drop (Clause 4); the determination of significant

17、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 used. The certificate of compliance with this International Standard may be obtain

18、ed 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 referencesThe following referenced documents are indispensable for the application of this document. For dated

19、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 Definitions and standard conditionsISO 3402, Tobacco and tobacco products Atmosphere for co

20、nditioning and testing3 Terms and definitionsFor the purposes of this International Standard, the following terms and definitions apply.3.1pressure dropstatic pressure difference between the two ends of a pneumatic circuit (of a smoking machine) when it is traversed by an air flow under steady condi

21、tions in which the measured volumetric flow, under standard conditions, at the output end is 17,5 ml/s.3.2puff profileflow rate measured directly behind the butt end of the cigarette, and depicted graphically as a function of timeNote 1 to entry: For the determination of the puff profile, the cigare

22、tte could be replaced by a suitable device with a known pressure drop similar to the pressure drop of the cigarette.3.3restricted smokingcondition that exists when the butt end of a cigarette is closed to the atmosphere between successive puffs ISO 2013 All rights reserved 1BS ISO 7210:2013 ISO 7210

23、:2013(E)3.4 puff durationinterval of time during which the port of a smoking machine is connected to the suction mechanism3.5 puff volumevolume leaving the butt end of a cigarette and passing through the smoke trap of a smoking machine3.6 smoulder stream smokeall smoke which leaves the butt end of t

24、he cigarette during the interval of time between successive puffs3.7 portaperture of the suction mechanism through which a puff is drawn and to which is attached a smoke trap3.8 channelelement of a smoking machine consisting of one or more cigarette holders, one trap and a means of drawing a puff th

25、rough the trap4 Determination of pressure drop4.1 PrincipleMeasurement, under well-specified air flow conditions, of the pressure drop of a smoking machine by means of an appropriate manometer.4.2 ApparatusThe whole of the flow path between the butt end of the cigarette and the suction mechanism sha

26、ll 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 pressure drop of the system under test; measuring the pressure drop with known and sufficient accuracy.a) Zero settin

27、g manometer2 ISO 2013 All rights reservedBS ISO 7210:2013ISO 7210:2013(E)b) Air flow settingc) Determination pressure drop PD 1d) Determination pressure drop PD 2KeyH test head pointF flowmeterW wide-bore tubingT smoking machine under testM manometerFigure 1 Pneumatic circuit of a typical apparatusN

28、OTE Arrows indicate the direction of air flow.4.3 Test atmosphereAll measurements shall be carried out under standard ambient conditions of temperature and relative humidity as specified in ISO 3402.4.4 Procedure4.4.1 GeneralThe flow of air through the smoking machine shall always be in the same dir

29、ection 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 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 Testing4.4.2.1

30、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 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

31、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 puffing source was disconnected as indicated in Figure 1d). Read the pressure on manometer M. Record the value as PD 2.Calculate the pressure dro

32、p (PD 2 PD 1).4.4.2.54.4.2.6 Repeat the operation for each channel of the smoking machine.4.5 Expression of resultsThe following values shall be recorded: the pressure drop for each channel, in pascals; the test atmosphere used.5 Determination of significant puff profile parameters5.1 PrincipleConti

33、nuous 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 ApparatusThe apparatus shall comprise the elements shown in the principle diagram (Figure 2), i.e. the diagram of elements required for the two alternative measuring syst

34、ems, A and B, with two different levels of sophistication.4 ISO 2013 All rights reservedBS ISO 7210:2013ISO 7210:2013(E)Pressure dropstandardLaminarg976low sensorSmokingmachineLinearizerPuff initiationsignalIntegratorRecorderAnalog todigital converterMicroprocessorVisualdisplay unitPressuretransduce

35、rSystem A System BFigure 2 Principle diagram5.2.1 System AThe 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 BThis sys

36、tem uses digital conversion 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 systemsThe device shall not increase the pressure drop of the system above the limit of 300 Pa and the over

37、all gain and response of the 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 fl

38、ow of 17,5 ml/s; pressure 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 s

39、ystem A or system B, can 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 resultsThe following results need to be reported: total drawn puff volume expressed in millilitres; maximum flow ra

40、te expressed in millilitres 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 g

41、iven in ISO 3308:2012, Annex C.6 Verification of restricted smoking6.1 PrincipleMeasurement 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

42、connection of the port to the suction device, this test is not necessary.6.2 ApparatusApparatus 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

43、 bubble flowmeter and the cigarette.6.3 ProcedureSmoke 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 c

44、igarette to 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 rotat

45、ion.6.4 Expression of resultsNote 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.Key1 rubber connection2 soap film bubble flowmeter3 cigarette holder or glass tube4 cigaretteFigure 3 Diagram of test

46、apparatus for restricted smoking ISO 2013 All rights reserved 7BS ISO 7210:2013 ISO 7210:2013(E) ISO 2013 All rights reservedICS 65.160Price based on 7 pagesThis page deliberately left blankBSI is the independent national body responsible for preparing British Standards and other standards-related p

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