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GB/T 35809-2018: Method for analysis of forestry biomass -- Determination of protein content
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Method for analysis of forestry biomass -- Determination of protein content
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GB/T 35809-2018
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Basic data | Standard ID | GB/T 35809-2018 (GB/T35809-2018) | | Description (Translated English) | Method for analysis of forestry biomass -- Determination of protein content | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B60 | | Classification of International Standard | 79.010 | | Word Count Estimation | 6,616 | | Date of Issue | 2018-02-06 | | Date of Implementation | 2018-09-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 35809-2018: Method for analysis of forestry biomass -- Determination of protein content---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Method for analysis of forestry biomass-Determination of protein content
ICS 79.010
B60
National Standards of People's Republic of China
Forestry biomass raw material analysis method
Protein content determination
Published on.2018-02-06
2018-09-01 Implementation
General Administration of Quality Supervision, Inspection and Quarantine of the 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 is proposed by the State Forestry Administration.
This standard is under the jurisdiction of the National Forestry Biomass Standardization Technical Committee (SAC/TC416).
This standard was drafted by. Beijing Forestry University, Jinan Haineng Instrument Co., Ltd., Langfang Huari Furniture Co., Ltd., Shandong Lili
Engineering University, Shandong Lusen Plastic Wood Composites Co., Ltd., Zhejiang Forestry Academy, Xiamen Standard & Poor's Standardization Service Co., Ltd., China Forestry
Institute of Wood Industry, Academy of Sciences.
The main drafters of this standard. Ren Xueyong, Chang Jianmin, Chen Fengyi, He Liang, Wang Zhigang, Liu Fengxiang, Liu Yi, Zhang Yang, Zhang Bailin, Zhao Hongfei,
Yi Weiming, Cai Hongzhen, Guo Jinglei, Xu Jinfei, Fan Dongbin.
Forestry biomass raw material analysis method
Protein content determination
1 Scope
This standard specifies methods, reagents and materials, instruments and equipment, and analytical procedures for the determination of protein content in forestry biomass feedstocks.
Expression of results, etc.
This standard applies to wood, bamboo, rattan, bark, leaves, fruit shells and other forestry biomass raw materials.
This standard adopts Kjeldahl method and Dumas combustion method. The former is a classical method for determining protein content and is applicable to each method.
A forestry biomass feedstock; the latter is an efficient method for the rapid determination of protein content, and is used to push forward the rapid detection of forestry biomass feedstocks in batches.
Recommended for use.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 30366-2013 biomass terminology
3 Terms and Definitions
The terms and definitions defined in GB/T 30366-2013 and the following apply to this document.
3.1
Forestry biomass forestrybiomass
Biomass produced during the production and processing of forestry mainly includes forest products (such as wood, bamboo, rattan, etc.) and forestry residues (such as branches).
Slag, sawdust, sawdust, shoots, slats and truncated, husks and kernels and other processing residues and processing residues, paper-making waste, and waste wood)
Energy forest and so on.
[GB/T 30366-2013, definition 2.1.3]
4 Kjeldahl method
4.1 Principle
The protein in the forestry biomass raw material is decomposed under the condition of catalytic heating, and the generated ammonia gas is combined with the sulfuric acid to generate ammonium sulfate, alkalized steaming
Distillation ammonia free, absorbed with boric acid, titrated with sulfuric acid or hydrochloric acid standard titration solution, determine the nitrogen content according to the consumption of acid and multiplied by nitrogen
For the protein coefficient, you can get the protein content of raw materials.
4.2 Reagents and Materials
The reagents used in this standard method are all analytically pure (except as otherwise specified). The water is either distilled or deionized water.
4.2.1 Copper sulfate (CuSO4·5H2O).
4.2.2 Potassium sulfate (K2SO4).
4.2.3 Sulfuric acid (H2SO4). The density is 1.84g/L.
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