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ISO 7935:1992

(Main)

Stationary source emissions — Determination of the mass concentration of sulfur dioxide — Performance characteristics of automated measuring methods

Stationary source emissions — Determination of the mass concentration of sulfur dioxide — Performance characteristics of automated measuring methods

Applies to extractive and non-extractive automated sulfur dioxide measuring methods. Specifies 4 main performance characteristics: detection limit, effect of interfering substances, response time, integral performance. Annex A describes determination of the main performance characteristics, annex B lists additional performance characteristics.

Émissions de sources fixes — Détermination de la concentration en masse de dioxyde de soufre — Caractéristiques de performance des méthodes de mesurage automatiques

Emisije nepremičnih virov - Ugotavljanje masne koncentracije žveplovega dioksida - Delovne karakteristike avtomatskih merilnih metod

General Information

Status
Withdrawn
Publication Date
02-Dec-1992
ICS
13.040.40 - Stationary source emissions
Technical Committee
ISO/TC 146/SC 1 - Stationary source emissions
Drafting Committee
ISO/TC 146/SC 1 - Stationary source emissions
Current Stage
9599 - Withdrawal of International Standard
Completion Date
15-Feb-2024
Ref Project
SIST ISO 7935:1996 - Stationary source emissions -- Determination of the mass concentration of sulfur dioxide -- Performance characteristics of automated measuring methods

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ISO 7935:1992 - Stationary source emissions -- Determination of the mass concentration of sulfur dioxide -- Performance characteristics of automated measuring methodsISO 7935:1992 - Stationary source emissions -- Determination of the mass concentration of sulfur dioxide -- Performance characteristics of automated measuring methods
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ISO 7935:1992 - Stationary source emissions -- Determination of the mass concentration of sulfur dioxide -- Performance characteristics of automated measuring methods
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Standards Content (Sample)

SLOVENSKI STANDARD
SIST ISO 7935:1996
01-oktober-1996
(PLVLMHQHSUHPLþQLKYLURY8JRWDYOMDQMHPDVQHNRQFHQWUDFLMHåYHSORYHJDGLRNVLGD
'HORYQHNDUDNWHULVWLNHDYWRPDWVNLKPHULOQLKPHWRG
Stationary source emissions -- Determination of the mass concentration of sulfur dioxide
-- Performance characteristics of automated measuring methods
Émissions de sources fixes -- Détermination de la concentration en masse de dioxyde de
soufre -- Caractéristiques de performance des méthodes de mesurage automatiques
Ta slovenski standard je istoveten z: ISO 7935:1992
ICS:
13.040.40 (PLVLMHQHSUHPLþQLKYLURY Stationary source emissions
SIST ISO 7935:1996 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST ISO 7935:1996

---------------------- Page: 2 ----------------------

SIST ISO 7935:1996
INTERNATIONAL
ISO
STANDARD
7935
First edition
19924 2-I 5
Stationary Source emissions -
Determination of the mass concentration
of Sulfur dioxide - Performance
characteristics of automated measuring
methods
Emissions de sources fixes
- Determination de Ia concen tra tion en
masse de dioxyde de soufre
- Caractbristiques de Performance des
methodes de mesurage automa tiques
Reference number
ISO 79357 992(E)

---------------------- Page: 3 ----------------------

SIST ISO 7935:1996
ISO 7935:1992(E)
Contents
Page
1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 Normative references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*. 2
3 Definitions ,.,.,.~. 2
4 Description of the automated measuring Systems . . . . . . . . . . . . . . . . . . 3
5 Numerital values of Performance characteristics and their
applica bility .,.,,.*.*. 4
Annexes
A Determination of main Performance characteristics of automated
measuring Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
B Additional Performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .~.~. 11
C Bibliography
0 ISO 1992
All rights reserved. No patt of this publication may be reproduced or utilized in any ferm or
by any means, electronie or mechanical, including photocopying and microfilm, without per-
mission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-1 211 Geneve 20 l Switzerland
Printed in Switzerland
ii

---------------------- Page: 4 ----------------------

SIST ISO 7935:1996
ISO 7935: 1992(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
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.
Draft International Standards adopted by the technical committees are
circulated 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 7935 was prepared by Technical Committee
lSO/TC 146, Air quality, Sub-Committee SC 1, Stationary Source
emissions.
Annex A forms an integral part of this Internationa Standard. Annexes B
and C are for information only.

---------------------- Page: 5 ----------------------

SIST ISO 7935:1996
ISO 7935:1992(E)
Introduction
Sulfur dioxide tan arise in considerable quantities from combustion of
fossil fuels used for energy generation, industrial activities processing
Sulfur or Sulfur containing material, and from combustion of Sulfur con-
taining waste. The waste gas from these processes, containing Sulfur di-
Oxide, is usually discharged into the ambient atmosphere, via a duct or a
chimney.
For evaluating the mass concentration of Sulfur dioxide present in the
waste gas of stationary Source emissions, a number of highly developed
methods of integrated sampling and subsequent determination by chemi-
cal analysis and automated measur
...

INTERNATIONAL
ISO
STANDARD
7935
First edition
19924 2-I 5
Stationary Source emissions -
Determination of the mass concentration
of Sulfur dioxide - Performance
characteristics of automated measuring
methods
Emissions de sources fixes
- Determination de Ia concen tra tion en
masse de dioxyde de soufre
- Caractbristiques de Performance des
methodes de mesurage automa tiques
Reference number
ISO 79357 992(E)

---------------------- Page: 1 ----------------------
ISO 7935:1992(E)
Contents
Page
1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 Normative references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*. 2
3 Definitions ,.,.,.~. 2
4 Description of the automated measuring Systems . . . . . . . . . . . . . . . . . . 3
5 Numerital values of Performance characteristics and their
applica bility .,.,,.*.*. 4
Annexes
A Determination of main Performance characteristics of automated
measuring Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
B Additional Performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .~.~. 11
C Bibliography
0 ISO 1992
All rights reserved. No patt of this publication may be reproduced or utilized in any ferm or
by any means, electronie or mechanical, including photocopying and microfilm, without per-
mission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-1 211 Geneve 20 l Switzerland
Printed in Switzerland
ii

---------------------- Page: 2 ----------------------
ISO 7935: 1992(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
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.
Draft International Standards adopted by the technical committees are
circulated 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 7935 was prepared by Technical Committee
lSO/TC 146, Air quality, Sub-Committee SC 1, Stationary Source
emissions.
Annex A forms an integral part of this Internationa Standard. Annexes B
and C are for information only.

---------------------- Page: 3 ----------------------
ISO 7935:1992(E)
Introduction
Sulfur dioxide tan arise in considerable quantities from combustion of
fossil fuels used for energy generation, industrial activities processing
Sulfur or Sulfur containing material, and from combustion of Sulfur con-
taining waste. The waste gas from these processes, containing Sulfur di-
Oxide, is usually discharged into the ambient atmosphere, via a duct or a
chimney.
For evaluating the mass concentration of Sulfur dioxide present in the
waste gas of stationary Source emissions, a number of highly developed
methods of integrated sampling and subsequent determination by chemi-
cal analysis and automated measuring Systems are available. Considerable
experience exists on their application under plant conditions. One of these
methods is standardized as ISO 7934.
ISO 7934 is used for example in comparative measurements, where the
automated measuring methods are involved. The automated technique is
capable of continuous measurement of the mass concentration of Sulfur
dioxide.
For methods where Performance characteristics are given, the values of
Performance characteristics are used to decide whether a method is suit-
able for a given measuring task (see ISO 6879:1983, clause 1). Values of
the main Performance characteristics of automated measuring Systems,
capable of determining the mass concentration of Sulfur dioxide present
in waste gas stationary emission sources, are given in clause 5.
Additional Performance characteristics are given in informative annex B.
The procedure for evaluating the values of the Performance characteristics
listed in clause 5, is d
...

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