ISO 21626-3:2020
(Main)Bamboo charcoal — Part 3: Purification applications
Bamboo charcoal — Part 3: Purification applications
This document specifies the requirements and test methods of bamboo charcoal for air-purification applications.
Charbon de bambou — Partie 3: Applications pour purification
General Information
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 21626-3
First edition
2020-12
Bamboo charcoal —
Part 3:
Purification applications
Charbon de bambou —
Partie 3: Applications pour purification
Reference number
ISO 21626-3:2020(E)
©
ISO 2020
---------------------- Page: 1 ----------------------
ISO 21626-3:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© 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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 21626-3:2020(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 2
4.1 Sensory inspection . 2
4.2 Requirements for air purification applications of bamboo charcoal . 2
5 Sampling . 3
6 Analytical methods. 3
6.1 Visual inspection procedure . 3
6.2 Determination of moisture content . 3
6.3 Determination of ash content. 3
6.4 Determination of fixed carbon . 3
6.5 Determination of formaldehyde adsorption capacity . 3
6.6 Determination of TVOC adsorption capacity . 3
7 Marking and labelling . 3
8 Packaging, transport and storage . 4
Bibliography . 5
© ISO 2020 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 21626-3:2020(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. 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. 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 on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO's adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
This document is prepared by Technical Committee ISO/TC 296, Bamboo and Rattan.
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
---------------------- Page: 4 ----------------------
ISO 21626-3:2020(E)
Introduction
Bamboo charcoal (BC) is an eco-friendly biomass product with porous structure, which is generally
used to absorb toxic indoor gases, such as formaldehyde and various volatile organic compounds
(VOCs). Bamboo charcoal has good adsorption quality and abundant sources of raw materials. Bamboo
charcoal for purification applications also comes with a great market potential both in industrial and
domestic appl
...
INTERNATIONAL ISO
STANDARD 21626-3
First edition
Bamboo charcoal —
Part 3:
Purification applications
Charbon de bambou —
Partie 3: Applications pour purification
PROOF/ÉPREUVE
Reference number
ISO 21626-3:2020(E)
©
ISO 2020
---------------------- Page: 1 ----------------------
ISO 21626-3:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© 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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii PROOF/ÉPREUVE © ISO 2020 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 21626-3:2020(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 2
4.1 Sensory inspection . 2
4.2 Requirements for air purification applications of bamboo charcoal . 2
5 Sampling . 3
6 Analytical methods. 3
6.1 Visual inspection procedure . 3
6.2 Determination of moisture content . 3
6.3 Determination of ash content. 3
6.4 Determination of fixed carbon . 3
6.5 Determination of formaldehyde adsorption capacity . 3
6.6 Determination of TVOC adsorption capacity . 3
7 Marking and labelling . 3
8 Packaging, transport and storage . 4
Bibliography . 5
© ISO 2020 – All rights reserved PROOF/ÉPREUVE iii
---------------------- Page: 3 ----------------------
ISO 21626-3:2020(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. 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. 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 on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO's adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
This document is prepared by Technical Committee ISO/TC 296, Bamboo and Rattan.
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 PROOF/ÉPREUVE © ISO 2020 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 21626-3:2020(E)
Introduction
Bamboo charcoal (BC) is an eco-friendly biomass product with porous structure, which is generally
used to absorb toxic indoor gases, such as formaldehyde and various volatile organic compounds
(VOCs). Bamboo charcoal has good adsorption quality and abundant sources of raw materials. Bamboo
charcoal for purification applications also comes with a great market potential both in industrial and
domestic applications.
© IS
...
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