GB/T 35814-2018 in English

VALID

Method for analysis of forestry biomass―Preparation of samples

Issued on:2018-02-06
Implemented on:2018-09-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $100.00
$97.00

Standard No:	GB/T 35814-2018
Document status:	VALID
Title in English:	Method for analysis of forestry biomass―Preparation of samples
Title in Chinese:	林业生物质原料分析方法样品处理方法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2018-02-06
Implemented on:	2018-09-01
Chinese Classification:	B60-Basic standard and general method on forestry
Professional Classification:	GB-National Standard
Related Keywords:	forestry biomass raw materials forestry biomass refers forestry biomass forestry biomass industry forestry biomass ― preparation processing method
Related Topics:	biomass sample handling method sample Material analysis sample handling Substance analysis method Material analysis Original sample Biological Sample Validation Methods Sample handling method Biomass analysis Material phase analysis method In vivo biological sample analysis biological sample analysis Sample handling conditions Sample Handling Peak material analysis Biological sample din Analyze sample quality Biological Sample Processing Methods mass spectrometry for biological samples Inorganic sample treatment method Biological sample processor Mass spectrometry sample volume Test sample handling method Principle of sample rod Sample Quality Method Physical property analysis method Methods of sample pretreatment biological raw material biological raw material method sample number Sample Processing Processing Method Sample handler Method analysis of reference materials Samples processed twice Sample weighing The basis of biological sample analysis methods physical method chemical method biological method Phase analysis sample Biological sample reanalysis Various biological sample analysis methods Biological Sample Method Validation Biological sample mass spectrometry Material structure analysis method Sample handling method Basic methods for the analysis of biological samples Solid sample handling method total biological sample Biological Sample Processing Methods Sample Processing Principle of sample method Bioanalytical Methods Countries food handling method Two treatments of the same sample Sample No Handling Method Analytical sample automatic handling Validation of analytical methods for in vitro samples Biological Sample Processing Methods Biological sample pretreatment method Principle of sample divider Sample Pretreatment Principles Sample handling box Principle of sample divider Sample Pretreatment Principles processed as a sample Sample Handling, Analysis and Measurement Biological Sample Analyzer methods for the analysis of biological samples 6 pretreatment methods for samples Biomass pretreatment Solid Sample Analysis Methods Biomass pretreatment Methods of sample post-processing Principle of sample processing The method and principle of sample pretreatment Sample test post-processing method Bioanalytical pairs of samples Sample pretreatment method method Methods for in vivo analysis of biological samples Sample Processing Method Method Sample analysis method General methods for the analysis of biological samples Principle of UV analysis sample place Principle of UV analysis Bioanalytical analysis method Water quality treatment method Sample siphon principle Summary of biological sample analysis results Analytical sample test method Substance Qualitative Analysis Methods Mass spectrometry sample preparation method Sample machine processing method Mass spectrometry sample preparation method Note sample method biological sample box Niche analysis method Test sample processing method Solid sample handling method Biological Sample Determination and Analysis Methods The principle of generation is also different Analytical method Matrix sample The analysis of biological samples is usually performed by Biological sample analysis is usually Sample Material Analysis biological sample 17 The analysis of biological samples is usually How to handle solid samples Biological Sample Determination and Analysis Methods Principle of adding samples Methodological principles Solid Sample Analysis Methods Disc sample handling In vivo sample processing Definition of biological sample method material composition method Bioanalytical detection method The principle of the sample divider forestry biology Sample handling method Water quality sample processing method The principle of sampling How to analyze biological samples Bioanalysis and Biological Sample Analysis Analyze sample quality material analysis method Bioanalytical method construction A method of processing a material GBT35814 GB/T 35814-2018 Metallic Materials (Physical Analysis Methods) Formulate bioanalysis Principle of bioelectrical impedance analyzer Bioanalyzer 2100 working principle Biological sample homogenizer validation plan BIA bioimpedance analysis method Biological sample validation analysis method residues The preferred analytical method for biological samples () immunoassay Methods and machinery for protoplast fusion Bioanalyzer principle tx100 biological sample What are the methods for preparing microbial protoplasts? How to establish a liquid phase analysis method for biological samples Live broadcast of API analysis methods Chromatographic method development for biological samples Validation of biological sample analysis methods Liquid sample processing methods Principle of protoplast fusion method Sample processing methods for measuring apples Protoplast fusion method and principle Development of bioanalytical methods for peptide samples Principles of biophysical detection methods Principles and methods of primer design Matrix sample preparation methods API analytical method development How to operate protoplast fusion Photolysis rate analyzer method principle, Amino acid sample processing methods Food sample pretreatment methods Biological effect-oriented analysis method Matrix effects in the validation of quantitative analysis methods for biological samples Protoplast fusion methods and principles Atomic absorption sample pretreatment methods Shimadzu Analytical Method Management Principle of determination method for benzene series Briefly describe the common principles of materials analysis methods Electron microscope sample processing methods Material Growth Physics Methods Bioanalytical Methodology Matrix Effects What are the sample pretreatment methods? 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《GB/T 35814-2018林业生物质原料分析方法样品处理方法》由TC416（全国林业生物质材料标准化技术委员会）归口，主管部门为国家林业和草原局。

Introduction

Interpretation of GB/T 35814—2018 National Standard of the People's Republic of China

The Importance of Sample Processing for Analysis Methods of Forestry Biomass Raw Materials

Forestry biomass refers to various materials produced during forestry production and processing, including products such as wood, bamboo, and rattan, as well as residues such as branches, sawdust, and wood chips. GB/T 35814—2018 mainly regulates the sample processing methods for forestry biomass raw materials to ensure the accuracy and representativeness of the analysis results.

Sample processing method comparison table

Processing method	Scope of application	Key steps	Equipment requirements
Method A	Applicable to samples with a moisture content of less than 10% and stable environmental conditions	Air drying → crushing → sieving → shrinking	Plant crusher (2mm sieve), sieving machine
Method B	Applicable to samples with high moisture content and prone to mold	Drying oven treatment → crushing → sieving → shrinking	Convection heating drying oven (45±3°C), plant crusher
Method C	Applicable to heat-sensitive and easily degradable samples	Freeze drying → crushing → screening → shrinking	Vacuum freeze dryer (vacuum degree 133Pa), plant crusher

Standard formulation background and technology evolution analysis

The formulation of GB/T 35814-2018 standard is based on the two basic standards GB/T 21923 and GB/T 30366, combined with the actual needs of the forestry biomass industry. With the deepening of biomass energy research and the advancement of technology, sample processing methods need to be more refined and diversified to adapt to different types of forestry biomass raw materials.

Instrument and Equipment Specifications

Key Instrument Requirements:

Drying Oven: For methods B and C, temperature control accuracy ±3°C is required.
Vacuum Freeze Dryer: Vacuum degree ≤133Pa, temperature ≤-50°C.
Balance: Sensitivity 0.1g, used for sample weighing.

Implementation Suggestions

In actual operation, it is recommended to select the appropriate treatment method according to the sample characteristics and experimental conditions. For samples with high moisture content, method B or C is preferred; for samples that are easily degraded, method C is recommended to ensure sample integrity.

Summary

GB/T 35814-2018 standard provides a scientific and standardized method for the analysis of forestry biomass raw materials. The accuracy and reliability of the analysis results can be ensured by rationally selecting the processing method. In practical applications, it is recommended to flexibly adjust the operating steps based on equipment conditions and sample characteristics.

More samples: GB 18306-2015 GB 50021-2001(2009) JJG 21-2008

Sample only — not a preview of GB/T 35814-2018

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