ISO 21626-3:2020

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 2020
© ISO 2020
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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
Foreword
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This document is prepared by Technical Committee ISO/TC 296, Bamboo and Rattan.
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iv © ISO 2020 – All rights reserved

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
...