BS 5668-1(2000) : 2000

Foreword
Introduction
1. Scope
2. Normative reference
3. Terms and definitions
4. Standard conditions
 4.1 Machine pressure drop (see 3.5)
 4.2 Puff duration (see 3.7)
 4.3 Puff volume (see 3.8)
 4.4 Puff frequency (see 3.10)
 4.5 Puff profile (see 3.12)
 4.6 Restricted smoking (see 3.3)
 47 Puff number (see 3.9)
 4.8 Cigarette holder (see 3.14)
 4.9 Cigarette position (see 3.19)
 4.10 Ashtray position (see 3.22)
5. Specification for the routine analytical smoking machine
 5.1 General
 5.2 Operating principle and puff profile
 5.3 Reliability and compensation
 5.4 Cigarette holders and smoke traps
 5.5 Test atmosphere
 5.6 Puff counting
 5.7 Ignition
 5.8 Smoking enclosure
Annex A (normative) Ambient air flow around cigarettes in
        routine analytical smoking machines : Control and
        monitoring
Annex B (informative) Description of the puffing mechanism
        of a piston-type smoking machine
Annex C (informative) Digrammatic representation of a puff
        profile
Bibliography

Smoking parameters defined and specific standard conditions to be provided for the routine analytical machine smoking of cigarettes. Requirements are specified for a routine analytical smoking machine complying with standard conditions. Ambient air velocities surrounding cigarettes in a routine analytical smoking machine, mechanical design of enclosures immediately surrounding them and methods of air velocity measurement including the location where the velocity is measured are in Annex A. Annex describes the special characteristics of a typical smoking machine incorporating a piston type of puffing mechanism as an example. Annex C illustrates definitions and standard conditions of a puff profile in a diagram.