Search result: GB/T 33797-2017
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 33797-2017 | English | 224 |
Add to Cart
|
3 days [Need to translate]
|
Plastics -- Determination of the ultimate anaerobic biodegradation under high-solids anaerobic-digestion conditions -- Method by analysis of released biogas
| Valid |
GB/T 33797-2017
|
| Standard ID | GB/T 33797-2017 (GB/T33797-2017) | | Description (Translated English) | Plastics -- Determination of the ultimate anaerobic biodegradation under high-solids anaerobic-digestion conditions -- Method by analysis of released biogas | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G31 | | Classification of International Standard | 83.080.01 | | Word Count Estimation | 12,158 | | Date of Issue | 2017-05-31 | | Date of Implementation | 2017-12-01 | | Quoted Standard | ISO 8245 | | Adopted Standard | ISO 15985-2014, IDT | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, China National Standardization Administration Committee | | Summary | This standard specifies a method for the evaluation of biodegradability under plastic anaerobic conditions by measuring the amount of biogas released under high solids anaerobic digestion conditions. The method simulates typical anaerobic digestion conditions with urban organic solid waste. The test material was exposed to an inhalation of anaerobic digested household waste in the laboratory. Anaerobic decomposition occurs in a high solids content (total dry solids content greater than 2000) and is allowed to stand under unmixed conditions. The test method was used to determine the carbon content of the test material and its conversion to carbon dioxide and methane as a percentage. The conditions described in this standard do not always correspond to the best conditions for maximum biodegradation. |
GB/T 33797-2017
Plastics - Determination of the ultimate anaerobic biodegradation under high-solids anaerobic-digestion conditions - Method by analysis of released biogas
ICS 83.080.01
G31
National Standards of People's Republic of China
The plastic is finally anaerobic under high solids composting conditions
The determination of biodegradability was determined by analysis
The method of releasing biogas
(ISO 15985..2014, IDT)
2017-05-31 released
2017-12-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Management Committee released
Preface
This standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This standard uses the translation method equivalent to ISO 15985..2014 "plastic in high solid compost conditions under the final anaerobic biodegradation energy
Determination of the use of force for the determination of the release of biogas. "(English version).
Please note that some of the contents of this document may involve patents. The issuer of this document does not assume responsibility for the identification of these patents.
This standard is proposed and centralized by the National Standardization Technical Committee on Biomechanics and Degradation Products (TC380).
This standard by the Beijing Industrial and Commercial University, the Chinese Academy of Sciences Tianjin Institute of Industrial Biotechnology, Suzhou Hanfeng New Materials Co., Ltd., Zhejiang
Jianghua Hair Ecological Technology Co., Ltd., Chongqing Lianfa Plastic Technology Co., Ltd., National Plastic Products Quality Supervision and Inspection Center (Beijing)
Responsible for drafting.
The main drafters of this standard. Hu Jing, Ma Yanhe, Jiang Kai, Sun Yuanzheng, Zhou Jiushou, Li Zhiyi, Diao Xiaoqian, Zhou Yingxin, Zhang Min.
introduction
With the enhancement of environmental protection, we need to develop new plastics with biodegradability. These plastics and their derivatives are used as
Raw materials or added raw materials, can be aerobic digestion or anaerobic digestion to achieve bio-recycling. To ensure that the plastic is suitable for the biological cycle, they are
The biodegradability needs to be determined by a standard test method.
There are currently standard methods for the determination of aerobic biodegradability of materials under high solids conditions (GB/T 19277.1-2011 and
GB/T 19277.2-2013), but the literature shows that different environments (such as oxygen or anaerobic conditions) under the biodegradable plastic biodegradable
The rate will be very different. So in order to more fully understand a plastic in different environmental conditions under the biodegradable characteristics, the need for a different test
Test method.
The current method of determining the anaerobic biodegradability is ISO 11734, but this method is only for soluble low-density test materials
The biodegradability of materials (such as detergents) under aqueous test conditions is not applicable to plastics. This standard specifies the determination of plastic in high solids
Content of anaerobic digestion under the conditions of the final degree of biodegradation, which represents the city of organic solid waste anaerobic digestion.
The plastic is finally anaerobic under high solids composting conditions
The determination of biodegradability was determined by analysis
The method of releasing biogas
1 Scope
This standard specifies a method for the evaluation of biogas release under high anaerobic digestion conditions.
Material decomposition method. The method simulates typical anaerobic digestion conditions with urban organic solid waste. The test material was exposed to the test
Indoor anaerobic digested household waste inoculum. Anaerobic decomposition occurs at high solids levels (total dry solids content greater than
20%) environment, and placed under unmixed conditions. The test method was used to determine the carbon content of the test material and its conversion to dioxins
The percentage of carbon and methane.
The conditions described in this standard do not always correspond to the best conditions for maximum biodegradation.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
ISO 8245 Guidelines for the Determination of Total Organic Carbon (TOC) and Dissolved Organic Carbon (DOC) [Waterquality-Guidelines
forthedeterminationoftotalorganiccarbon (TOC) and dissolvedorganiccarbon (DOC)]
3 terms and definitions
The following terms and definitions apply to this document.
3.1
Final anaerobic biodegradation
Organic compounds are broken down by microorganisms into methane, carbon dioxide, water and mineralized inorganic salts and other elements and new biomass.
3.2
Total dry totaldrysolids
The amount of solid obtained by drying the known volume of the test material or inoculum at a temperature of 105 ° C to constant weight.
3.3
Volatile solid volatilesolids
The total dry solids of the known volume of the test material or inoculum are subtracted from the amount of residual solids obtained after incineration at about 550 ° C
Get the difference.
Note. Volatile solids are used to characterize the organic material content of the material.
3.4
Lag phase
From the beginning of the experiment until the microorganism adapts (or chooses) the decomposition product, and the biodegradability of the test material has increased to the maximum
The number of days required for a biodegradation rate of 10%.
......
|