SIST ISO 8454:1998
(Main)Cigarettes -- Determination of carbon monoxide in the vapour phase of cigarette smoke -- NDIR method
Cigarettes -- Determination of carbon monoxide in the vapour phase of cigarette smoke -- NDIR method
Specifies a method for the determination of carbon monoxide (CO) in the vapour phase of cigarette smoke. Replaces the first edition, of which it constitutes a technical revision.
Cigarettes -- Dosage du monoxyde de carbone dans la phase gazeuse de fumée de cigarette -- Méthode IRND
La présente Norme internationale prescrit une méthode pour le dosage du monoxyde de carbone (CO) dans la phase gazeuse de fumée de cigarette.
Cigarete - Določevanje ogljikovega monoksida v plinski fazi cigaretnega dima - Metoda NDIR
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INTERNATIONAL
ISO
STANDARD
8454
Second edition
1995-11-15
Cigarettes -
Determination of carbon
monoxide in the vapour Phase of cigarette
smoke - NDIR method
Cigare ttes - Dosage du monoxyde de carbone dans Ia Phase gazeuse de
fum6e de cigarette - M&hode IRND
Reference number
ISO 8454:1995( E)
---------------------- Page: 1 ----------------------
ISO 8454: 1995(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. Esch member body interested in a subject for
which a technical committee has been established has the right to be rep-
resented 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
(1 EC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are cir-
culated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard ISO 8454 was prepared by Technical Committee
lSO/rC 126, Tobacco and tobacco products.
This second edition cancels and replaces the first edition (ISO 8454:1987),
which has been technically revised.
0 ISO 1995
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronie or mechanical, including photocopying and
microfilm, without Permission in writing from the publisher.
International Organization for Standardization
Case postale 56 l CH-l 211 Geneve 20 l Switzerland
Printed in Switzerland
ii
---------------------- Page: 2 ----------------------
INTERNATIONAL STANDARD @ ISO ISO 8454: 1995(E)
Cigarettes - Determination of carbon monoxide in the
vapour Phase of cigarette smoke - NDIR method
3.2 Clearing puff: Any puff taken after a cigarette
1 Scope
has been extinguished or removed from the cigarette
holder.
This International Standard specifies a method for the
determination of carbon monoxide (CO) in the vapour
Phase of cigarette smoke.
4 Principle
2 Normative references
Smoking of cigarettes in accordance with the proce-
dure given in ISO 4387. Collection of the vapour
The following Standards contain provisions which, Phase of the cigarette smoke and measurement of
through reference in this text, constitute provisions of the carbon monoxide using a non-dispersive infrared
this International Standard. At the time of publication, (NDIR) analyser calibrated for carbon monoxide. Cal-
the editions indicated were valid. All Standards are culation of the amount of carbon monoxide per ciga-
subject to revision, and Parties to agreements based rette.
on this International Standard are encouraged to
investigate the possibility of applying the most recent
editions of the Standards indicated below. Members
of IEC and ISO maintain registers of currently valid
5 Apparatus
International Standards.
Usual laboratory apparatus and, in particular, the fol-
ISO 3308: 1991, Routine analytical cigarette-Smoking
lowing items.
- Definitions and Standard conditions.
machine
5.1 Conditioning enclosure, maintained accurately
ISO 3402:1991, Tobacco and tobacco products -
in accordance with the conditions specified in
Atmosphere for conditioning and testing.
ISO 3402, for conditioning the cigarette Sample Prior
to Smoking (see also 8.1).
ISO 4387.1991, Cigarettes - Determination of total
:
and nico tine-free dry particula te matter using a routine
analytical Smoking machine.
5.2 Routine analytical cigarette-Smoking ma-
chine and accessories, complying with the require-
ISO 8243: 1991, Cigarettes -Sampling.
ments of ISO 3308.
5.3 Vapour-Phase collection System, which tan
3 Definitions
be fitted to one or more of the Smoking machine
channels. The use of the System shall ensure
For the purposes of this International Standard, the
collection of all the vapour Phase (normally vented to
following definitions apply.
atmosphere) to be stored in a previously evacuated
Container for subsequent sampling through an NDIR
analyser.
3.1 vapour Phase: The Portion of smoke which
Passes the particulate Phase trap during Smoking in
accordance with ISO 4387 using a machine conform-
The collection System shall not Cause interference
ing to ISO 3308. with the normal Performance of the Smoking machine
---------------------- Page: 3 ----------------------
@ ISO
ISO 8454: 1995(E)
concentrations within a relative error of 2 % covering
and the consequent determination of total particulate
the expected range in such a way as to avoid
matter and nicotine.
extrapolation of the calibration curve; typically about
The impermeability of the gas-collecting device to a 1 %, 3 % and 5 % (WV) of CO in nitrogen would be
vapour Phase shall be checked with a vapour Phase appropriate.
containing 4 % to 6 % (VW) of CO. The CO concen-
tration shall be measured directly after filling the pre-
viously evacuated gas-collecting device. After a period
of not less than 2 h, the measured value of CO con-
7 Sampling
centration of the vapour Phase in the device shall not
differ by more than 0,2 % from the value expected
Sampling shall be carried out in accordance with
from the first determination.
ISO 8243.
When a bag is used as gas-collecting device, it should
be large enough to avoid the final pressure of its con-
tents exceeding the ambient atmospheric pressure.
8 Procedure
NOTE 1 The volume of the bag should also be not greater
than twice the volume of the gas content collected at
8.1 Conditioning
atmospheric pressure. In practice, the collection of the
vapour Phase from 5 cigarettes requires a volume of
Condition the test Portion taken from and rep-
3 litres and the collection of the vapour Phase from
resentative of the laboratory Sample in accordance
20 cigarettes requires a volume of 10 litres.
with ISO 3402. Verify that equilibrium has been
properly attained as described in ISO 3402.
5.4 Non-dispersive infrared (NDIR) analyser,
selective and calibrated for the measurement of
The atmosphere in the laboratory where the Smoking
carbon monoxide in vapours and gases.
is to be carried out shall also be in accordance with
ISO 3402. Place the conditioned test Portion in an
Analysers are available from several manufacturers
airtight Container (just large enough to contain the
and should have a preferred working range of 0 %
Portion) and remove each cigarette from the Container
to 10 % (VW) CO and a sampling rate of between
just before Smoking.
O,5 I/min and 2 I/min. The analyser shall have a
precision of 1 % of full scale, a linearity of 1% of full
scale and a repeatability of 0,2 % of full scale, under
8.2 Calibration of the NDIR analyser
conditions of constant temperature and pressure. Its
response to IO % (WV) of CO2 shall not exceed
8.2.1 Warm up the instrument according to the
0,05 % (VW) as CO. Its response to 2 % (WV) of
manufacturer ’s recommendations, purge the instru-
water vapour shall not exceed 0,05 % (WV) as CO.
ment with air and adjust to read Zero.
5.5 Ignition device 8.2.2 Fill a previously evacuated vapour-Phase col-
lection Container with the Standard gas mixture of
Flameless ignition shall be used. The lighters shall
nominally 5 % (WV) CO, re-evacuate and refill with
light the cigarettes at the first attempt without either
gas. Ensure that the gas in the Container is at ambient
touching or pre-charring the cigarettes.
temperature and pressure. Introduce the gas into the
measuring cell using the System sampling pump
5.6 Barometer, capable of measuring atmospheric
allowing 5 s to IO s for equilibration of pressure of the
pressures to the nearest 0,l kPa.
analyser. Note the reading on the analyser con-
centration indicator when a steady value has been
5.7 Thermometer, capable of measuring tempera- obtained.
ture to the nearest 0,2 “C.
If necessary, adjust the instrument reading to agree
with the certified value of the Standard gas.
6 Standard gas mixtures
8.2.3 Repeat the procedure as specified in 8.2.2 for
Make-up gases other than nitrogen, such as helium,
at least two other Standard gas mixtures. If there is a
shall not be used since the detected response of
differente of greater than 0,2 % (VW) CO between
carb
...
SLOVENSKI STANDARD
SIST ISO 8454:1998
01-februar-1998
&LJDUHWH'RORþHYDQMHRJOMLNRYHJDPRQRNVLGDYSOLQVNLID]LFLJDUHWQHJDGLPD
0HWRGD1',5
Cigarettes - Determination of carbon monoxide in the vapour phase of cigarette smoke -
NDIR method
Ta slovenski standard je istoveten z:
ICS:
65.160 7REDNWREDþQLL]GHONLLQ Tobacco, tobacco products
RSUHPD and related equipment
SIST ISO 8454:1998 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
INTERNATIONAL
ISO
STANDARD
8454
Second edition
1995-11-15
Cigarettes -
Determination of carbon
monoxide in the vapour Phase of cigarette
smoke - NDIR method
Cigare ttes - Dosage du monoxyde de carbone dans Ia Phase gazeuse de
fum6e de cigarette - M&hode IRND
Reference number
ISO 8454:1995( E)
---------------------- Page: 2 ----------------------
ISO 8454: 1995(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. Esch member body interested in a subject for
which a technical committee has been established has the right to be rep-
resented 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
(1 EC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are cir-
culated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard ISO 8454 was prepared by Technical Committee
lSO/rC 126, Tobacco and tobacco products.
This second edition cancels and replaces the first edition (ISO 8454:1987),
which has been technically revised.
0 ISO 1995
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronie or mechanical, including photocopying and
microfilm, without Permission in writing from the publisher.
International Organization for Standardization
Case postale 56 l CH-l 211 Geneve 20 l Switzerland
Printed in Switzerland
ii
---------------------- Page: 3 ----------------------
INTERNATIONAL STANDARD @ ISO ISO 8454: 1995(E)
Cigarettes - Determination of carbon monoxide in the
vapour Phase of cigarette smoke - NDIR method
3.2 Clearing puff: Any puff taken after a cigarette
1 Scope
has been extinguished or removed from the cigarette
holder.
This International Standard specifies a method for the
determination of carbon monoxide (CO) in the vapour
Phase of cigarette smoke.
4 Principle
2 Normative references
Smoking of cigarettes in accordance with the proce-
dure given in ISO 4387. Collection of the vapour
The following Standards contain provisions which, Phase of the cigarette smoke and measurement of
through reference in this text, constitute provisions of the carbon monoxide using a non-dispersive infrared
this International Standard. At the time of publication, (NDIR) analyser calibrated for carbon monoxide. Cal-
the editions indicated were valid. All Standards are culation of the amount of carbon monoxide per ciga-
subject to revision, and Parties to agreements based rette.
on this International Standard are encouraged to
investigate the possibility of applying the most recent
editions of the Standards indicated below. Members
of IEC and ISO maintain registers of currently valid
5 Apparatus
International Standards.
Usual laboratory apparatus and, in particular, the fol-
ISO 3308: 1991, Routine analytical cigarette-Smoking
lowing items.
- Definitions and Standard conditions.
machine
5.1 Conditioning enclosure, maintained accurately
ISO 3402:1991, Tobacco and tobacco products -
in accordance with the conditions specified in
Atmosphere for conditioning and testing.
ISO 3402, for conditioning the cigarette Sample Prior
to Smoking (see also 8.1).
ISO 4387.1991, Cigarettes - Determination of total
:
and nico tine-free dry particula te matter using a routine
analytical Smoking machine.
5.2 Routine analytical cigarette-Smoking ma-
chine and accessories, complying with the require-
ISO 8243: 1991, Cigarettes -Sampling.
ments of ISO 3308.
5.3 Vapour-Phase collection System, which tan
3 Definitions
be fitted to one or more of the Smoking machine
channels. The use of the System shall ensure
For the purposes of this International Standard, the
collection of all the vapour Phase (normally vented to
following definitions apply.
atmosphere) to be stored in a previously evacuated
Container for subsequent sampling through an NDIR
analyser.
3.1 vapour Phase: The Portion of smoke which
Passes the particulate Phase trap during Smoking in
accordance with ISO 4387 using a machine conform-
The collection System shall not Cause interference
ing to ISO 3308. with the normal Performance of the Smoking machine
---------------------- Page: 4 ----------------------
@ ISO
ISO 8454: 1995(E)
concentrations within a relative error of 2 % covering
and the consequent determination of total particulate
the expected range in such a way as to avoid
matter and nicotine.
extrapolation of the calibration curve; typically about
The impermeability of the gas-collecting device to a 1 %, 3 % and 5 % (WV) of CO in nitrogen would be
vapour Phase shall be checked with a vapour Phase appropriate.
containing 4 % to 6 % (VW) of CO. The CO concen-
tration shall be measured directly after filling the pre-
viously evacuated gas-collecting device. After a period
of not less than 2 h, the measured value of CO con-
7 Sampling
centration of the vapour Phase in the device shall not
differ by more than 0,2 % from the value expected
Sampling shall be carried out in accordance with
from the first determination.
ISO 8243.
When a bag is used as gas-collecting device, it should
be large enough to avoid the final pressure of its con-
tents exceeding the ambient atmospheric pressure.
8 Procedure
NOTE 1 The volume of the bag should also be not greater
than twice the volume of the gas content collected at
8.1 Conditioning
atmospheric pressure. In practice, the collection of the
vapour Phase from 5 cigarettes requires a volume of
Condition the test Portion taken from and rep-
3 litres and the collection of the vapour Phase from
resentative of the laboratory Sample in accordance
20 cigarettes requires a volume of 10 litres.
with ISO 3402. Verify that equilibrium has been
properly attained as described in ISO 3402.
5.4 Non-dispersive infrared (NDIR) analyser,
selective and calibrated for the measurement of
The atmosphere in the laboratory where the Smoking
carbon monoxide in vapours and gases.
is to be carried out shall also be in accordance with
ISO 3402. Place the conditioned test Portion in an
Analysers are available from several manufacturers
airtight Container (just large enough to contain the
and should have a preferred working range of 0 %
Portion) and remove each cigarette from the Container
to 10 % (VW) CO and a sampling rate of between
just before Smoking.
O,5 I/min and 2 I/min. The analyser shall have a
precision of 1 % of full scale, a linearity of 1% of full
scale and a repeatability of 0,2 % of full scale, under
8.2 Calibration of the NDIR analyser
conditions of constant temperature and pressure. Its
response to IO % (WV) of CO2 shall not exceed
8.2.1 Warm up the instrument according to the
0,05 % (VW) as CO. Its response to 2 % (WV) of
manufacturer ’s recommendations, purge the instru-
water vapour shall not exceed 0,05 % (WV) as CO.
ment with air and adjust to read Zero.
5.5 Ignition device 8.2.2 Fill a previously evacuated vapour-Phase col-
lection Container with the Standard gas mixture of
Flameless ignition shall be used. The lighters shall
nominally 5 % (WV) CO, re-evacuate and refill with
light the cigarettes at the first attempt without either
gas. Ensure that the gas in the Container is at ambient
touching or pre-charring the cigarettes.
temperature and pressure. Introduce the gas into the
measuring cell using the System sampling pump
5.6 Barometer, capable of measuring atmospheric
allowing 5 s to IO s for equilibration of pressure of the
pressures to the nearest 0,l kPa.
analyser. Note the reading on the analyser con-
centration indicator when a steady value has been
5.7 Thermometer, capable of measuring tempera- obtained.
ture to the nearest 0,2 “C.
...
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