Valid

GB/T 35814-2018Method for analysis of forestry biomass—Preparation of samples (English PDF)

林业生物质原料分析方法样品处理方法

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 35814-2018 in 30 minutes.

Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

February 6, 2018

Implementation date

September 1, 2018

Scope

GB/T 35814-2018 is the English-translated version of 林业生物质原料分析方法样品处理方法.

GB/T 35814-2018 describes how samples of forestry biomass raw materials are prepared before analysis. It states the general principle of sample processing: drying, crushing and screening turn the sample into an analytical sample that represents the original one, without changing its composition or quality characteristics.

It also gives the terms used, such as forestry biomass and sample division, the reagents and materials, among them analytical-grade acetone and dry ice with a purity of not less than 90%, the apparatus, three sample handling methods labelled A, B and C, how samples are stored and what the test report contains.

It applies to the processing of forestry biomass samples and takes its definitions from GB/T 21923-2008 and GB/T 30366-2013. It was issued on 6 February 2018 and has applied since 1 September 2018.

Found what you need?

Document preview — GB/T 35814-2018

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 Sample processing
5 Reagents and materials

Foreword

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

1 Scope

This standard specifies the terms and definitions of sample processing forestry biomass raw materials, sample processing general principles, reagents and materials, apparatus and equipment, Sample Handling Methods (A, B, C), Sample Storage and Test Report.

This standard applies to forestry biomass samples processing.

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.

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

GB/T 30366-2013 Biomass terms

3 Terms and definitions

GB/T 21923-2008 and GB/T 30366-2013 define the following terms and definitions apply to this document. For convenience Use, the following repetition lists some of the terms and definitions GB/T 21923-2008 and GB/T 30366-2013.

3.1 Forestry biomass

Biomass produced during forestry production and processing. Mainly include forest products (such as wood, bamboo, rattan, etc.), forestry residues (such as branches Ah, sawdust, sawdust, tops, skin and truncated heads, harvesting residues and processing residues such as nutshell and kernels, papermaking waste, and discarded wood) Energy forest. [GB/T 30366-2013, Definition 2.1.3]

3.2 Sample division

The sample or sample is divided into representative, separate part of the sample preparation process. [GB/T 21923-2008, Definition 3.82]

4 Sample processing

The main purpose of sample processing is to process the sample into analytical samples that represent the characteristics of the original sample by drying, crushing, screening and other steps.

The principle of sample handling is that the composition and quality characteristics of the original sample do not change during sample processing.

5 Reagents and materials

5.1 Acetone, analytical grade.

5.2 Dry ice (solid carbon dioxide). Purity not less than 90%.

......
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 35820-2018|GB/T 47049-2026|GB/T 47054-2026|GB/T 46105-2025|GB/T 46339-2025

How to Download GB/T 35814-2018

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.