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GB/T 35565-2017: Test methods of wooden activated carbon -- Determination of formaldehyde adsorption
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 35565-2017 | English | 119 |
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Test methods of wooden activated carbon -- Determination of formaldehyde adsorption
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GB/T 35565-2017
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Basic data | Standard ID | GB/T 35565-2017 (GB/T35565-2017) | | Description (Translated English) | Test methods of wooden activated carbon -- Determination of formaldehyde adsorption | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B72 | | Classification of International Standard | 65.050 | | Word Count Estimation | 6,685 | | Date of Issue | 2017-12-29 | | Date of Implementation | 2018-07-01 | | 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 | GB/T 35565-2017: Test methods of wooden activated carbon -- Determination of formaldehyde adsorption
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Test methods of wooden activated carbon-Determination of formaldehyde adsorption
ICS 65.050
B72
National Standards of People's Republic of China
Wood activated carbon test method
Formaldehyde adsorption rate determination
2017-12-29 Posted
2018-07-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard proposed by the State Forestry Administration.
This standard by the National Forest Products Standardization Technical Committee (SAC/TC558) centralized.
This standard was drafted by the Chinese Academy of Forestry Forest Chemical Industry Institute.
The main drafters of this standard. Sun Kang, Jiang Jianchun, Lu Xincheng, Shu Hongnan, Deng Xianlun, Dai Weidi, Zhang Yanping, Zhu Guangzhen, Chen Chao, Jia Yujie.
Wood activated carbon test method
Formaldehyde adsorption rate determination
1 Scope
This standard specifies the method of determination of formaldehyde adsorption rate of wood activated carbon.
This standard applies to wood granular activated carbon, but also for other granular activated carbon.
2 method summary
Under the specified test conditions, a formaldehyde-laden nitrogen stream is passed through a sample of activated carbon of known mass until the sample mass does not increase,
As adsorption saturation. The formaldehyde adsorption rate of the sample is expressed in milligrams per gram of formaldehyde adsorbed formaldehyde (mg/g).
3 reagent
3.1 Formaldehyde solution (GB/T 685). Analytical purity, formaldehyde content 37.0% ~ 40.0%.
3.2 high purity nitrogen (GB/T 8979).
4 instruments and equipment
4.1 Nitrogen gas flow meter. Flow range 60mL/min ~ 600mL/min.
4.2 Analytical Balance. Sense of 0.1mg.
4.3 constant temperature water bath temperature control range RT (room temperature) ~ 99 ℃.
4.4 electric oven, temperature range RT (room temperature) 10 ℃ ~ 250 ℃.
4.5 Adsorption tube made of industrial white glass, the appearance of no bubbles and other obvious defects. Glass welding should not have more melting
Then heap and crease, plug for the grinding mouth connection. Adsorption tube must be tested for airtightness before use. Inside the tube scale inside diameter (10 ±
0.3) mm, see Figure 1.
4.6 porous gas bottle. Capacity of 250mL.
4.7 mixed bottle. Ball diameter 60mm two ball shell-type.
4.8 temperature control with a snake tube. Length of not less than 1m.
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