GB/T 22877-2023 English PDFUS$289.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 22877-2023: Paper, board, pulps and cellulose nanomaterials - Determination of residue (ash content) on ignition at 525 ℃ Status: Valid GB/T 22877: Historical versions
Basic dataStandard ID: GB/T 22877-2023 (GB/T22877-2023)Description (Translated English): Paper, board, pulps and cellulose nanomaterials - Determination of residue (ash content) on ignition at 525 �� Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: Y30 Classification of International Standard: 85.010 Word Count Estimation: 14,188 Date of Issue: 2023-12-28 Date of Implementation: 2024-07-01 Older Standard (superseded by this standard): GB/T 22877-2008 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 22877-2023: Paper, board, pulps and cellulose nanomaterials - Determination of residue (ash content) on ignition at 525 ℃---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. ICS 85:010 CCSY30 National Standards of People's Republic of China Replace GB/T 22877-2008 Paper, board, pulp and cellulose nanomaterials Determination of ignition residue (ash content) (525℃) (ISO 1762:2019,MOD) Published on 2023-12-28 2024-07-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration Committee ForewordThis document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting: This document replaces GB/T 22877-2008 "Determination of ignition residue (ash) of paper, cardboard and pulp (525 ℃)" and is consistent with Compared with GB/T 22877-2008, in addition to structural adjustments and editorial changes, the main technical changes are as follows: a) Changed the scope (see Chapter 1, Chapter 1 of the:2008 edition); b) Added terms and definitions for nanoscale, nanoobjects, cellulose nanoobjects and cellulose nanomaterials (see 3:1, 3:2, 3:3 and 3:4), changed the terms and definitions of ignition residue (ash) (see 3:5, 3:1 of the:2008 version); c) Added an explanation of the principles in Chapter 4 and a description of the specific composition of the residue (see Chapter 4); d) The electric furnace was deleted (see 5:2 of the:2008 edition) and a dryer was added (see 5:4); e) Added sampling and burning methods for cellulose nanomaterials (see 6:3 and 7:3:3); f) Added parallel test requirements and suggestions on sample handling methods (see 7:1); g) Changed the ignition time of cardboard and pulp samples (see 7:3:2, 7:3:3 of the:2008 edition); h) The sample carbonization process is deleted (see 7:3:3 of the:2008 edition); i) The result expression has been changed, and the measurement results are reported based on the ignition residue (ash content) of the sample (see Chapter 8,:2008 Chapter 8 of the annual edition): This document is modified to adopt ISO 1762:2019 "Determination of ignition residue (ash) of paper, cardboard, pulp and cellulose nanomaterials" (525℃)》: The technical differences between this document and ISO 1762:2019 and their reasons are as follows: a) The scope has been changed to comply with the requirements for compiling standard documents in my country (see Chapter 1); b) ISO 186 (see 6:2:1) was replaced with normatively cited GB/T 450 to adapt to my country’s technical conditions; c) Replaced ISO 287, ISO 638-1 and ISO 638-2 (see 7:2) with normatively quoted GB/T 462 to adapt to our country’s technology condition; d) Replaced ISO 7213 (see 6:2:1) with normatively cited GB/T 740 to adapt to my country's technical conditions; e) The cooling steps after crucible burning have been changed (see 7:3:1:1, 7:4) to adapt to the actual operating conditions of domestic laboratories: The following editorial changes have been made to this document: ---The sampling of cellulose nanomaterials in international standards has been changed, and the preparation methods and methods of cellulose nanofibers and cellulose nanocrystals have been changed: The influencing factors were changed to Note: Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents: This document is proposed by China Light Industry Federation: This document is under the jurisdiction of the National Paper Industry Standardization Technical Committee (SAC/TC141): This document was drafted by: Zhejiang Guoli Packaging Co:, Ltd:, Zhejiang Shunpu New Material Technology Co:, Ltd:, Zhejiang Huafeng Paper Technology Co:, Ltd: Company, Zhejiang Kane New Materials Co:, Ltd:, China Pulp and Paper Research Institute Co:, Ltd:, Zhongqing Paper Products Inspection and Certification Co:, Ltd:, Zhongqing (Jinjiang) Jiang) Hygiene Products Research Co:, Ltd: The main drafters of this document: Lu Xia, Wang Xinting, Zhang Jingfan, Lu Kesen, Hu Li, Liu Chengyue, Li Nanhua, Zheng Jian, Wo Qizhong, Chen Zhifang, Gao Ruoshi, Yu Xiaoming, Jiang Feng, Wei Bowen, Yuan Taojing, Feng Yafang: The previous versions of the documents replaced by this document are as follows: ---First published as GB/T 22877-2008 in:2008; ---This is the first revision: Paper, board, pulp and cellulose nanomaterials Determination of ignition residue (ash content) (525℃) Warning---The methods specified in this document involve the use of nanomaterials: Care should be taken to ensure compliance with nanotechnology laboratory safety and best practices relevant precautions and guidelines for practice:1 ScopeThis document describes a method for the determination of the ignition residue (ash) of paper, cardboard, pulp and cellulose nanomaterials at 525°C: This document is applicable to a variety of paper, board, pulp and cellulose nanomaterials: Note 1: In this document, the term “cellulose nanomaterials” refers specifically to cellulose nanoobjects (see 3:2~3:4): Cellulose nanoobjects due to their nanoscale Degree, having inherent properties, characteristics or functions that are different from paper, cardboard and pulp: Note 2: For the determination method of the ignition residue (ash content) of papermaking raw materials, pulp, paper and cardboard at 900°C, see GB/T 742:2 Normative reference documentsThe contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document: GB/T 450 Collection of paper and cardboard samples and determination of longitudinal, transverse, front and back sides of the sample (GB/T 450-2008, ISO 186: 2002,MOD) GB/T 462 Determination of moisture content of paper, cardboard and pulp analysis samples (GB/T 462-2023, ISO 287:2017, ISO 638-1: 2022,ISO 638-2:2022,MOD) GB/T 740 Collection of pulp samples (GB/T 740-2003, ISO 7213:1981, IDT)3 Terms and definitionsThe following terms and definitions apply to this document: 3:1 nanoscale In the size range between 1nm and 100nm: Note: This size range generally, but not exclusively, exhibits characteristics that cannot be extrapolated from larger sizes: [Source: GB/T 30544:1-2014,2:1] 3:2 nano-object nano-object Objects with one, two or three external dimensions at the nanometer scale (3:1): Note: The second and third dimensions are perpendicular to the first dimension and to each other: [Source: GB/T 30544:1-2014,2:5] ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 22877-2023_English be delivered?Answer: Upon your order, we will start to translate GB/T 22877-2023_English as soon as possible, and keep you informed of the progress. 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