Valid

GB/T 35820-2018Method for analysis of forestry biomass — Sampling methods (English PDF)

林业生物质原料分析方法取样方法

Preview PDF

This is a limited preview

Buy now to download the full PDF (15 pages)

Need quotation for your management?

Get a formal quotation for GB/T 35820-2018 in 30 minutes.

Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

February 6, 2018

Implementation date

September 1, 2018

Scope

GB/T 35820-2018 is the English-translated version of 林业生物质原料分析方法取样方法.

GB/T 35820-2018 explains how to take samples of forestry biomass raw materials, such as wood, bamboo, rattan, straw and nutshells, so that the analysis results represent the whole lot.

It defines forestry biomass, lot, sampling and sample, and covers the general sampling rules, the sampling tools and equipment, the sample size, the sampling site, the preparation of combined and laboratory samples, and the marking, packaging and shipping of samples, with a sampling record form in Annex A. It applies to forestry biomass materials with a particle size of not more than 200 mm, and can also be used when preparing samples for bulk density, mechanical strength, particle size distribution, moisture, chemical composition, ash and purity analysis. It was issued on 6 February 2018 and has applied since 1 September 2018.

Found what you need?

Document preview — GB/T 35820-2018

National Standard of the People's Republic of China

ICS: 79.010
Classification: B 60

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Sampling general
5 Sampling tools and equipment
6 Sample size
7 Sampling site
8 Combined sample and laboratory sample preparation
9 Sample marking, packaging and shipping
Sampling record
Appendix A (normative) Sampling records

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This standard specifies the forestry biomass raw material sampling terms and definitions, general sampling, sampling tools and equipment, sampling techniques and samples Marking, packaging and shipping.

This standard applies to the particle size of not more than 200mm sampling of forestry biomass materials, forestry biomass raw material bulk density, mechanical strength The degree of particle size distribution, moisture content, chemical composition, ash content, purity and other items of general analysis of the sample preparation can also refer to the use.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document.

General Principles of Sampling for Solid Chemical Products GB/T 6679-2003

GB/T 21923-2008 General rules for the inspection of solid biomass fuel

GB/T 30366-2013 Biomass terms

Biomass solid formed fuel sampling method

Biomass solid shaped fuel sample preparation method

3 Terms and definitions

GB/T 21923-2008, GB/T 30366-2013 defined and the following terms and definitions apply to this document.

3.1 Forestry biomass

The natural organic matter produced by life activities such as photosynthesis of plants consists of three major polymers of cellulose, hemicellulose and lignin And starch, pectin, protein, extracts and other ingredients, mainly in various forms of wood, bamboo, rattan, straw, nutshell shape It is a renewable natural plant fiber resource.

Note: Rewrite GB/T 30366-2013, the definition of 2.1.3.

3.2 Lot

Under certain conditions, the establishment of the nature of the material for the study of all forest biomass raw materials. When the material is in static state, it is the raw material storage yard All the ingredients in the ground. When the material is dynamic, all the raw materials that pass the sampling point for a certain time interval.

Note: The batch of raw materials should be clearly stated, grade and other indicators.

3.3 Sampling

The process of collecting a representative sample of a large number of forestry biomass feedstocks.

3.4 Sample

A representative portion of the forestry biomass feedstock taken to identify the quality characteristics of forestry biomass feedstocks.

Note: Rewrite GB/T 21923-2008, the definition of 3.84.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

Cited by

Similar standards

GB/T 35811-2018|GB/T 35814-2018|GB/T 47049-2026|GB/T 47054-2026|GB/T 46105-2025|GB/T 46339-2025

How to Download GB/T 35820-2018

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.