GB/T 26900-2011: Bamboo charcoal for air-purification

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Scope

This Standard specifies the definitions, requirements, test methods, inspection rules,
package, logo, transportation, and storage of bamboo charcoal for air-purification.
This Standard is applicable to bamboo charcoal that purifies formaldehyde, benzene, total
volatile organic gas (TVOC), and other harmful gases in the air. And it is not applicable to
bamboo charcoal for air-purification through special processing, such as various modified
bamboo charcoal.
2  Terms and definitions
The following terms and definitions apply to this Standard.
2.1
Bamboo charcoal for air-purification
Under the conditions of high temperature and limited oxygen (or isolated oxygen), the
bamboo is heated through pyrolysis, so as to obtain the black solid.
2.2
Fixed carbon
The remaining effective carbon after the charcoal is burned at high temperature.
2.3
Formaldehyde adsorption rate
A certain mass of dried test sample is placed in adsorption instrument that is fully filled
with adsorbtion gas. ABSORB for 24h at the constant temperature of 20°C. It
[Formaldehyde adsorption rate] is the percentage OF the weight-gain of the test sample
TO the original test sample’s mass.

Basic Data

Standard ID	GB/T 26900-2011 (GB/T26900-2011)
Description (Translated English)	Bamboo charcoal for air-purification
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	B67
Classification of International Standard	79.040
Word Count Estimation	13,194
Date of Issue	2011-09-29
Date of Implementation	2011-12-01
Regulation (derived from)	National Standards Bulletin 2011 No. 14
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the definition of air purification with charcoal, requirements, test methods, inspection rules, packaging, labeling, transportation and storage. This standard applies to purify the air of formaldehyde, benzene, total volatile organic gases (TVOC) and other harmful gases with charcoal, this standard does not apply to specially processed bamboo charcoal air purification, such as various modified charcoal.