CEN ISO/TS 20048-1:2022
(Main)Solid biofuels - Determination of off-gassing and oxygen depletion characteristics - Part 1: Laboratory method for the determination of off-gassing and oxygen depletion using closed containers (ISO/TS 20048-1:2020)
Solid biofuels - Determination of off-gassing and oxygen depletion characteristics - Part 1: Laboratory method for the determination of off-gassing and oxygen depletion using closed containers (ISO/TS 20048-1:2020)
This document defines a method for determination of off-gassing (permanent gases) and oxygen depletion from woody as well as non-woody biomass, including densified materials such as pellets and briquettes, as well as non-densified materials such as chips. The method is also applicable for thermally treated materials, including torrefied and carbonized materials.
The emission and depletion factor and emission and depletion rate for various gas species emitted from sample within a closed test container is determined by means of gas chromatography.
The emission and depletion factor and emission and depletion rate provide guidance for ventilation requirements to keep gas concentrations below Permissible Exposure Levels (PEL) in spaces where workers can be exposed to the enclosed atmosphere.
Biogene Festbrennstoffe - Bestimmung von Ausgasungs- und Sauerstoffverarmungseigenschaften - Teil 1: Laboratoriumsverfahren zur Bestimmung von Ausgasung und Sauerstoffverarmung in geschlossenen Prüfbehältern (ISO/TS 20048-1:2020)
Dieses Dokument legt ein Verfahren zur Bestimmung der Ausgasung (Permanentgase) und der Sauerstoffverarmung sowohl aus holzartiger als auch aus nicht-holzartiger Biomasse, einschließlich sowohl gepresster Materialien, wie z. B. Pellets und Briketts, als auch nicht gepresster Materialien, wie z. B. Hackschnitzel, fest. Das Verfahren ist auch auf thermisch behandelte Materialien, einschließlich torrefizierter und carbonisierter Materialien, anwendbar.
Der Emissions und Abreicherungsfaktor und die Emissions- und Verarmungsrate für verschiedene Gasspezies, die aus einer Probe in einem geschlossenen Prüfbehälter emittiert werden, werden mittels Gaschromatographie bestimmt.
Der Emissions- und Abreicherungsfaktor und die Emissions- und Verarmungsrate bieten Orientierungshilfen für die Anforderungen an die Belüftung, um die Gaskonzentrationen in Räumen, in denen Arbeitnehmer der eingeschlossenen Atmosphäre ausgesetzt sein können, unter den zulässigen Expositionsgrenzwerten (PEL, en: Permissible Exposure Levels) zu halten.
Biocombustibles solides - Détermination des dégagements gazeux et de l’appauvrissement en oxygène - Partie 1: Méthode de laboratoire pour la détermination des dégagements gazeux et de l'appauvrissement en oxygène dans des récipients fermés (ISO/TS 20048-1:2020)
Le présent document définit une méthode de détermination des dégagements gazeux (gaz permanents) et de l'appauvrissement en oxygène de la biomasse ligneuse et non ligneuse, y compris les matériaux densifiés tels que les granulés et les briquettes, ainsi que les matériaux non densifiés tels que les plaquettes. La méthode est également applicable aux matériaux traités thermiquement, y compris les matériaux torréfiés et carbonisés.
Le facteur d'émission et d'appauvrissement et le taux d'émission et d'appauvrissement de diverses espèces gazeuses émises par un échantillon dans un récipient d'essai fermé sont déterminés par chromatographie en phase gazeuse.
Le facteur d'émission et d'appauvrissement et le taux d'émission et d'appauvrissement donnent des indications sur les exigences de ventilation pour maintenir les concentrations de gaz en dessous des niveaux d'exposition admissibles (PEL) dans les espaces où les travailleurs peuvent être exposés à l'atmosphère confinée.
Trdna biogoriva - Določanje značilnosti odvajanja plinov in pomanjkanja kisika - 1. del: Laboratorijska metoda za določanje uhajanja plinov in zmanjšanja kisika z uporabo zaprtih posod (ISO/TS 20048-1:2020)
Ta mednarodni standard določa analitične metode za določanje uhajanja plinov in zmanjšanja kisika s peleti iz trdnih biogoriv. Standard določa namen in uporabo analitskih metod. Vzpostavlja tudi posebne postopke za vzorčenje in ravnanje z vzorci peletov iz trdnih biogoriv pred analizo uhajanja plinov in zmanjšanja kisika. Podane so smernice o namenu in uporabi podatkov o uhajanju plinov in zmanjšanju kisika, pridobljenih z analitskimi metodami.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2022
Trdna biogoriva - Določanje značilnosti odvajanja plinov in pomanjkanja kisika - 1.
del: Laboratorijska metoda za določanje uhajanja plinov in zmanjšanja kisika z
uporabo zaprtih posod (ISO/TS 20048-1:2020)
Solid biofuels - Determination of off-gassing and oxygen depletion characteristics - Part
1: Laboratory method for the determination of off-gassing and oxygen depletion using
closed containers (ISO/TS 20048-1:2020)
Biogene Festbrennstoffe - Bestimmung von Ausgasungs- und
Sauerstoffverarmungseigenschaften - Teil 1: Laboratoriumsverfahren zur Bestimmung
von Ausgasung und Sauerstoffverarmung (ISO/TS 20048-1:2020)
Biocombustibles solides - Détermination des dégagements gazeux et de
l’appauvrissement en oxygène - Partie 1: Titre manque (ISO/TS 20048-1:2020)
Ta slovenski standard je istoveten z: CEN ISO/TS 20048-1:2022
ICS:
75.160.40 Biogoriva Biofuels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
CEN ISO/TS 20048-1
TECHNICAL SPECIFICATION
SPÉCIFICATION TECHNIQUE
April 2022
TECHNISCHE SPEZIFIKATION
ICS 27.190; 75.160.40
English Version
Solid biofuels - Determination of off-gassing and oxygen
depletion characteristics - Part 1: Laboratory method for
the determination of off-gassing and oxygen depletion
using closed containers (ISO/TS 20048-1:2020)
Biocombustibles solides - Détermination des Biogene Festbrennstoffe - Bestimmung von
dégagements gazeux et de l'appauvrissement en Ausgasungs- und Sauerstoffverarmungseigenschaften -
oxygène - Partie 1: Méthode de laboratoire pour la Teil 1: Laboratoriumsverfahren zur Bestimmung von
détermination des dégagements gazeux et de Ausgasung und Sauerstoffverarmung (ISO/TS 20048-
l'appauvrissement en oxygène dans des récipients 1:2020)
fermés (ISO/TS 20048-1:2020)
This Technical Specification (CEN/TS) was approved by CEN on 27 March 2022 for provisional application.
The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to
submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.
CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS
available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in
parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN ISO/TS 20048-1:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
The text of ISO/TS 20048-1:2020 has been prepared by Technical Committee ISO/TC 238 "Solid
biofuels” of the International Organization for Standardization (ISO) and has been taken over as
which is held by SIS.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO/TS 20048-1:2020 has been approved by CEN as CEN ISO/TS 20048-1:2022 without any
modification.
TECHNICAL ISO/TS
SPECIFICATION 20048-1
First edition
2020-03
Solid biofuels — Determination of
off-gassing and oxygen depletion
characteristics —
Part 1:
Laboratory method for the
determination of off-gassing and
oxygen depletion using closed
containers
Reference number
ISO/TS 20048-1:2020(E)
©
ISO 2020
ISO/TS 20048-1:2020(E)
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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 internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
ISO/TS 20048-1:2020(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 3
5.1 General . 3
5.2 Test containers . 3
5.3 Gas sampler. 5
5.4 Ovens . 5
5.5 Gas chromatograph (GC) analyser . 5
6 Biomass sampling and sample preparation . 6
6.1 General . 6
6.2 Test sample characterization . 6
6.3 Test sample size . 6
7 Procedure. 6
7.1 Determination of porosity in biomass test sample . 6
7.2 Filling of test containers . 7
7.3 Test container arrangement and test gas sampling volume . 7
7.4 Operation of temperature-controlled ovens . 8
7.5 Gas sampling procedure . 8
7.6 Gas analysis . 9
8 Calculation . 9
9 Test report .13
Annex A (normative) Quantification of gas species using chromatography .14
Annex B (informative) Estimation of ventilation requirements for enclosed spaces .16
Annex C (informative) Determination of gas species concentration in open storage space .19
Bibliography .20
ISO/TS 20048-1:2020(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. Each 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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www .iso .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 238, Solid biofuels.
A list of all parts in the ISO 20048 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2020 – All rights reserved
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.