ISO/TR TECHNICAL REPORT 19478-2 First edition 2015-08-01 IsO and Health Canada intense smoking parameters - Part 2: Examination of factors contributing to variability in the routine measurement of TPM, water and NFDPM smoke yields of cigarettes Parametres de fumage ISO et Santé Canada Intense - Partie 2: Examen des facteurs contribuant a la variabilité des mesures de routine de MPT, d'eau et de MPAEN dans la fumée de cigarette Reference number IS0/TR19478-2:2015(E) ISO International Organization for Standardization @ IS0 2015 ndardization 5956617 ed without license from IHS IS0/TR 19478-2:2015(E) COPYRIGHT PROTECTED DOCUMENT IS0 2015, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISOcopyrightoffice Ch. de Blandonnet 8 · CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Internatinir DrganizationforStandardization Not for Resale, 2015/11/11 08:48:16 networking permited withoutlicense from IHS IS0/TR 19478-2:2015(E) Contents Page Foreword ..iv Introduction. .. 1 Scope. ..1 2 Terms and definitions ..1 3 Abbreviated terms .2 4 Principle .2 5 The influence of smoking intensity on the yield and composition of cigarette smoke .3 5.1 General .3 5.2 A review of information relevant to conclusion i) of IS0/TR 19478-1:2014 .3 5.3 Puff by puff smoke temperature measurements .4 5.4 Puff by puff smoke yields. ..6 5.5 Smoking intensity and cigarette smoke yields .13 5.6 Factors relevant to understanding how cigarettes burn and their use for predicting smoke yield 22 5.6.1 A review of additional studies. .22 5.6.2 A review of WG 10 study data. .34 6 Comparison of the design and performance of rotary and linear smoking machines .37 6.1 A review of information relevant to conclusion j) of IS0/TR 19478-1:2014 37 6.2 Zone 1: The cigarette zone. 39 6.2.1 Airflow/cigarette movement. .39 6.2.2 Puffing. .43 6.2.3 Termination of smoking. .44 6.3 Zone 2: The smoke collection zone .49 6.3.1 General .49 6.3.2 Connection of the cigarette holder to the CFH .49 6.3.3 Collection of TPM and measurement of water and NFDPM 52 6.4 Zone 3: The puff generator .56 1 Overall summary ..61 8 Conclusions ..62 9 Conclusions from IS0/TR 19478-1. ..63 Annex A (informative) Summaries of presentations to WG 10 and the Ad Hoc Group ..64 Annex B (informative) List of meetings of ISO/TC 126/WG 10 and the Ad Hoc Group ..72 Annex C (informative) Equipment and procedures for smoking cigarettes ..73 Bibliography ..75 ii nsee=Zhejiang Institute of Standardization 5956617 vithout license from IHS Not for Resale, 2015/11/11 08:48:16