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GB/T 35816-2018: Standard method for analysis of forestry biomass -- Determination of extractives content
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Standard method for analysis of forestry biomass -- Determination of extractives content
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GB/T 35816-2018
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Basic data | Standard ID | GB/T 35816-2018 (GB/T35816-2018) | | Description (Translated English) | Standard method for analysis of forestry biomass -- Determination of extractives content | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B60 | | Classification of International Standard | 65.020.01 | | Word Count Estimation | 10,180 | | 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 35816-2018: Standard method for analysis of forestry biomass -- Determination of extractives content
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Standard method for analysis of forestry biomass-Determination of extractives content
ICS 65.020.01
B60
National Standards of People's Republic of China
Forestry biomass raw material analysis method
Determination of extractive content
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. Northeast Forestry University.
The main drafters of this standard. Wang Weihong, Lan Yongqiang, Ren Shixue, Wang Qingwen, Hao Xiaolong.
Forestry biomass raw material analysis method
Determination of extractive content
1 Scope
This standard specifies the method for determining the content of extractives from forestry biomass raw materials.
This standard applies to the determination of the extractive content of wood, bamboo, rattan, crop straw and other plant raw materials.
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 2677.2-2011 Determination of moisture in papermaking raw materials
GB/T 2677.4-1993 Determination of extractables content of papermaking raw materials
GB/T 2677.5-1993 Determination of 1% Sodium Hydroxide Extract Content in Papermaking Materials
GB/T 2677.6-1994 Determination of extractables content of organic solvent in papermaking raw materials
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Forestry biomass forestrybiomass
The natural organic matter produced by plant life activities such as photosynthesis, which consists of three main polymers. cellulose, hemicellulose and lignin.
It is composed of starch, pectin, protein, extractives and other various components, mainly in various forms of wood, bamboo, rattan, straw, fruit shells, etc.
The existence of the formula is a renewable natural plant fiber resource.
3.2
Cold water extracts coldwater-solubleextractives
Extract extracted forest biomass from cold water.
3.3
Hot water extracts hotwater-soluble extractives
The extracted biomass was extracted with hot water from forestry biomass.
3.4
Organic solvent extracts organicsolvent-soluble extractives
Extracting forestry biomass with organic solvents.
4 Preparation of Forestry Biomass Powder Samples
4.1 General requirements
Sample raw materials are divided into three categories according to their source and form. wood, non-wood raw materials, and other forestry biomass raw materials.
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