Bamboo charcoal — Part 1: Generalities

This document specifies the requirements and test methods for bamboo charcoal. It is applicable to the bamboo charcoal briquette.

Charbon de bambou — Partie 1: Généralités

General Information

Status
Published
Publication Date
03-Dec-2020
Current Stage
6060 - International Standard published
Start Date
04-Dec-2020
Completion Date
04-Dec-2020
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INTERNATIONAL ISO
STANDARD 21626-1
First edition
2020-12
Bamboo charcoal —
Part 1:
Generalities
Charbon de bambou —
Partie 1: Généralités
Reference number
ISO 21626-1:2020(E)
ISO 2020
---------------------- Page: 1 ----------------------
ISO 21626-1:2020(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 21626-1:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Classification ............................................................................................................................................................................................................ 2

5 Requirements .......................................................................................................................................................................................................... 3

5.1 Sensory inspection .............................................................................................................................................................................. 3

5.2 Methods of measuring bamboo charcoal particle size ......................................................................................... 3

5.3 Requirements of physical and chemical properties for bamboo charcoal .......................................... 3

6 Sampling ........................................................................................................................................................................................................................ 4

7 Analytical methods............................................................................................................................................................................................. 4

7.1 Visual inspection procedure ........................................................................................................................................................ 4

7.2 Determination of moisture content ...................................................................................................................................... 4

7.3 Determination of ash content..................................................................................................................................................... 4

7.4 Determination of fixed carbon .................................................................................................................................................. 4

8 Marking and labelling ..................................................................................................................................................................................... 5

9 Packaging, transport and storage ....................................................................................................................................................... 5

Annex A (informative) Packaging, transport and storage .............................................................................................................. 6

Bibliography ................................................................................................................................................................................................................................ 7

© ISO 2020 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 21626-1:2020(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. 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 21626-1:2020(E)
Introduction

The use of bamboo for charcoal provides an effective means of improving the utilization of bamboo.

Bamboo charcoal can be produced by a wide variety of traditional methods and modern technology.

With the increase in the use of charcoal for household and industrial purposes, the need has arisen for

specifications that establish a standard for classification and testing.
© ISO 2020 – All rights reserved v
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 21626-1:2020(E)
Bamboo charcoal —
Part 1:
Generalities
1 Scope

This document specifies the requirements and test methods for bamboo charcoal. It is applicable to the

bamboo charcoal briquette.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 1953, Hard coal — Size analysis by sieving
ISO 18122, Solid biofuels — Determination of ash content
ISO 18123, Solid biofuels — Determination of the content of volatile matter

ISO 18134-3, Solid biofuels — Determination of moisture content — Oven dry method — Part 3: Moisture

in general analysis sample
ISO 18135, Solid biofuels — Sampling
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
bamboo charcoal
black solid porous product made of carbonized bamboo
3.2
bamboo charcoal briquette
BCB

shaped, solid product of carbonized bamboo particles or charcoal made by compression or extrusion

with or without a binder
3.3
tubular bamboo charcoal
TBC
bamboo charcoal (3.1) made of carbonized bamboo culm
© ISO 2020 – All rights reserved 1
---------------------- Page: 6 ----------------------
ISO 21626-1:2020(E)
3.4
bamboo charcoal flakes
BCF
flat, thin pieces of bamboo charcoal (3.1)
3.5
bamboo charcoal granules
BCG
minute quantity or fragment of bamboo charcoal (3.1)
3.6
bamboo charcoal powder
BCP
milled or pulverized charcoal with a typical particle size less than 1 mm
3.7
moisture content
water in the fuel removable under specific conditions
3.8
ash content

mass of inorganic residue remaining after combustion of bamboo charcoal (3.1) under specified

conditions, typically expressed as a percentage of the mass of dry matter in fuel

3.9
fixed carbon
remaining carbon after removal of water, ash and volatile matter
4 Classification

Bamboo charcoal could be classified into traditional bamboo charcoal and bamboo charcoal briquette,

and the latter can be further subdivided into carbonized bamboo powder briquette (CBPB) and

compressed bamboo charcoal powder briquette (BCPB), respectively, according to the production

process.
NOTE 1 Bamboo charcoal briquettes can be produced through processes:
a) Carbonization of bamboo powder briquette, and
b) Compression of bamboo charcoal powder.

NOTE 2 The raw material for process a) can be compressed bamboo powder with or without other biomass

powder blends and mixtures.

NOTE 3 The raw material for process b) can be bamboo charcoal powder with or without other fuel blends

and mixtures.
2 © ISO 2020 – All rights reserved
---------------------- Page: 7 ----------------------
ISO 21626-1:2020(E)
Table 1 — Bamboo charcoal classification according to shape and size
a b b
C(s1) TBC BCF BCG BCP
I II III
C(s2) (30 to 50)
L > D 1 to 3 3 to 10 10 to 20 ≤1
mm (50 to 100)
Key
C(s1) = Classification according to shape
C(s2) = Classification according to size
TBC = Tubular bamboo charcoal
L = Length
D = Diameter
BCF = Bamboo charcoal flakes
BCG = Bamboo charcoal granules
BCP = Bamboo charcoal powder
NOT
...

INTERNATIONAL ISO
STANDARD 21626-1
First edition
Bamboo charcoal —
Part 1:
Generalities
Charbon de bambou —
Partie 1: Généralités
PROOF/ÉPREUVE
Reference number
ISO 21626-1:2020(E)
ISO 2020
---------------------- Page: 1 ----------------------
ISO 21626-1:2020(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 21626-1:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Classification ............................................................................................................................................................................................................ 2

5 Requirements .......................................................................................................................................................................................................... 3

5.1 Sensory inspection .............................................................................................................................................................................. 3

5.2 Methods of measuring bamboo charcoal particle size ......................................................................................... 3

5.3 Requirements of physical and chemical properties for bamboo charcoal .......................................... 3

6 Sampling ........................................................................................................................................................................................................................ 4

7 Analytical methods............................................................................................................................................................................................. 4

7.1 Visual inspection procedure ........................................................................................................................................................ 4

7.2 Determination of moisture content ...................................................................................................................................... 4

7.3 Determination of ash content..................................................................................................................................................... 4

7.4 Determination of fixed carbon .................................................................................................................................................. 4

8 Marking and labelling ..................................................................................................................................................................................... 5

9 Packaging, transport and storage ....................................................................................................................................................... 5

Annex A (informative) Packaging, transport and storage .............................................................................................................. 6

Bibliography ................................................................................................................................................................................................................................ 7

© ISO 2020 – All rights reserved PROOF/ÉPREUVE iii
---------------------- Page: 3 ----------------------
ISO 21626-1:2020(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. 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 21626-1:2020(E)
Introduction

The use of bamboo for charcoal provides an effective means of improving the utilization of bamboo.

Bamboo charcoal can be produced by a wide variety of traditional methods and modern technology.

With the increase in the use of charcoal for household and industrial purposes, the need has arisen for

specifications that establish a standard for classification and testing.
© ISO 2020 – All rights reserved PROOF/ÉPREUVE v
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 21626-1:2020(E)
Bamboo charcoal —
Part 1:
Generalities
1 Scope

This document specifies the requirements and test methods for bamboo charcoal. It is applicable to the

bamboo charcoal briquette.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 1953, Hard coal — Size analysis by sieving
ISO 18122, Solid biofuels — Determination of ash content
ISO 18123, Solid biofuels — Determination of the content of volatile matter

ISO 18134-3, Solid biofuels — Determination of moisture content — Oven dry method — Part 3: Moisture

in general analysis sample
ISO 18135, Solid Biofuels — Sampling
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
bamboo charcoal
black solid porous product made of carbonized bamboo
3.2
bamboo charcoal briquette
BCB

shaped, solid product of carbonized bamboo particles or charcoal made by compression or extrusion

with or without a binder
3.3
tubular bamboo charcoal
TBC
bamboo charcoal (3.1) made of carbonized bamboo culm
© ISO 2020 – All rights reserved PROOF/ÉPREUVE 1
---------------------- Page: 6 ----------------------
ISO 21626-1:2020(E)
3.4
bamboo charcoal flakes
BCF
flat, thin pieces of bamboo charcoal (3.1)
3.5
bamboo charcoal granules
BCG
minute quantity or fragment of bamboo charcoal (3.1)
3.6
bamboo charcoal powder
BCP
milled or pulverized charcoal with a typical particle size less than 1 mm
3.7
moisture content
water in the fuel removable under specific conditions
3.8
ash content

mass of inorganic residue remaining after combustion of bamboo charcoal (3.1) under specified

conditions, typically expressed as a percentage of the mass of dry matter in fuel

3.9
fixed carbon
remaining carbon after removal of water, ash and volatile matter
4 Classification

Bamboo charcoal could be classified into traditional bamboo charcoal and bamboo charcoal briquette,

and the latter can be further subdivided into carbonized bamboo powder briquette (CBPB) and

compressed bamboo charcoal powder briquette (BCPB), respectively, according to the production

process.
NOTE 1 Bamboo charcoal briquettes can be produced through processes:
a) Carbonization of bamboo powder briquettes, and
b) Compression of bamboo charcoal powders.

NOTE 2 The raw material for process a) can be compressed bamboo powder with or without other biomass

powder blends and mixtures.

NOTE 3 The raw material for process b) can be bamboo charcoal powder with or without other fuel blends

and mixtures.
2 PROOF/ÉPREUVE © ISO 2020 – All rights reserved
---------------------- Page: 7 ----------------------
ISO 21626-1:2020(E)
Table 1 — Bamboo charcoal classification according to shape and size
a b b
C(s1) TBC BCF BCG BCP
I II III
C(s2) (30 to 50)
L > D 1 to 3 3 to 10 10 to 20 ≤1
mm (50 to 100)
Key
C(s1) = Classification according to shape
C(s2) = Classification according to Size
TBC = Tubular bamboo charcoal
L = Length
D = Diameter
BCF = Bamboo charcoal flakes
BCG = Bamboo charcoal granules
BCP = Bamboo charcoal powder
NOTE This tab
...

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