GB/T 12910-2023_English: PDF (GB/T12910-2023)
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GB/T 12910-2023 | English | 209 |
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Paper and board -- Determination of titanium dioxide content
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GB/T 12910-2023
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GB/T 12910-1991 | English | 199 |
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Paper and board. Determination of titanium dioxide
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Standard ID | GB/T 12910-2023 (GB/T12910-2023) | Description (Translated English) | Paper and board -- Determination of titanium dioxide content | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | Y30 | Classification of International Standard | 85.060 | Word Count Estimation | 10,147 | Date of Issue | 2023-12-28 | Date of Implementation | 2024-07-01 | Older Standard (superseded by this standard) | GB/T 12910-1991 | Drafting Organization | Shandong Huatai Paper Co., Ltd., China Pulp and Paper Research Institute Co., Ltd., Xianhe Co., Ltd., Huabang Tesinoce New Materials Co., Ltd., Shandong Product Quality Inspection Institute, Zhejiang Huakai Paper Co., Ltd., Zhejiang Xin Yalun Paper Co., Ltd., Zhongqing Paper Products Inspection and Certification Co., Ltd., Zhongqing (Jinjiang) Sanitary Products Research Co., Ltd., Paper Industry Productivity Promotion Center | Administrative Organization | National Paper Industry Standardization Technical Committee (SAC/TC 141) | Proposing organization | China Light Industry Federation | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | Standard ID | GB/T 12910-1991 (GB/T12910-1991) | Description (Translated English) | Paper and board. Determination of titanium dioxide | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | Y32 | Classification of International Standard | 85.06 | Word Count Estimation | 5,570 | Date of Issue | 1991/5/18 | Date of Implementation | 1992/3/1 | Quoted Standard | GB 450; GB 462; GB 463 | Adopted Standard | ISO 5647-1989, MOD | Drafting Organization | Paper Research Institute of the Ministry of Light Industry Science | Administrative Organization | National Standardization Technical Committee Paper Industry | Proposing organization | People Republic of China Ministry of Light Industry | Issuing agency(ies) | State Bureau of Technical Supervision | Summary | This standard specifies the use of spectrophotometry and flame atomic absorption spectrophotometry content of titanium dioxide. Both methods have the same effect. This standard applies to all types of coating or filling of paper and paperboard added. Regardless of the form in which the titanium does not affect the measurement result. |
GB/T 12910-2023: Determination of titanium dioxide content in paper and paperboard
ICS 85:060
CCSY30
National Standards of People's Republic of China
Replace GB/T 12910-1991
Determination of titanium dioxide content in paper and paperboard
(ISO 5647:2019,MOD)
Published on 2023-12-28
2024-07-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Preface
This 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 12910-1991 "Determination of titanium dioxide content in paper and paperboard" and is consistent with GB/T 12910-1991
In addition to structural adjustments and editorial changes, the main technical changes are as follows:
a) Added terms and definitions (see Chapter 3);
b) The reagents have been changed (see Chapter 5, Chapter 4 of the:1991 edition);
c) The regulations on test water have been changed, and the normative reference document GB/T 6682 has been added (see 5:1, 4:1 of the:1991 edition);
d) Added the normative reference document GB/T 603 on the preparation method of hydrogen peroxide solution and potassium chloride solution (see 5:5 and
5:6);
e) Changed the optimal range of titanium dioxide content when preparing ash solution (see 8:1, 7:1 of the:1991 edition);
f) Changed the normative reference document on ash content determination, replacing GB/T 463 with GB/T 742 (see 8:2,:1991 version
7:2);
g) Added operating specifications for preparing titanium dioxide blank solution (see Chapter 9);
h) Changed the preparation method of calibration solution in the spectrophotometric test step (see 10:1, 8:1:1 of the:1991 version);
i) Added quantitative filter paper for filtering insoluble substances in ash solution (see 10:2);
j) Changed the preparation method of calibration solution in the flame atomic absorption spectrophotometry test step (see 11:1:1,:1991 version
9:1:1);
k) Changed the instrument calibration instructions and the wavelength used in flame atomic absorption spectrophotometry measurements (see 11:1:2,:1991 version
9:1:2);
l) Changed the handling method when the reading measured by the flame atomic absorption spectrophotometer exceeds the range of the standard solution (see 11:2:2,
9:2:1 of the:1991 version);
m) The principle of rounding the arithmetic mean of two measurement results in the test report has been changed (see Chapter 12, Chapter 10 of the:1991 edition):
This document is modified to adopt ISO 5647:2019 "Determination of titanium dioxide content in paper and paperboard":
Compared with ISO 5647:2019, this document has made the following structural adjustments:
a) 5:5 corresponds to 5:6 of ISO 5647:2019, 5:6 corresponds to 5:7 of ISO 5647:2019, and 5:7 corresponds to ISO 5647:2019
5:8,5:8 corresponds to 5:5 of ISO 5647:2019;
b) "Express the result as the arithmetic mean of the two measurement results, and the result is accurate to 0:1g/kg" in Chapter 12 corresponds to ISO 5647:
Contents of e) in Chapter 13 of:2019:
The technical differences between this document and ISO 5647:2019 and their reasons are as follows:
a) The textual expression of the scope has been changed (see Chapter 1, Chapter 1 of ISO 5647:2019) to comply with the requirements of my country’s national standardization documents
drafting rules;
b) Changed the requirements for distilled or deionized water (see 5:1, 5:1 of ISO 5647:2019), and added normative reference documents
GB/T 6682 (see 5:1) to adapt to my country’s technical conditions;
c) Added the normative reference document GB/T 603 on the preparation methods of hydrogen peroxide solution and potassium chloride solution (see 5:5 and
5:6), in order to comply with the writing rules of standardized documents;
d) Added porcelain crucibles in optional instruments and precautions for their use (see 6:1) to adapt to my country's technical conditions;
e) Changed the normative reference document on sampling, replacing ISO 186 with GB/T 450 (see Chapter 7, ISO 5647:2019
(Chapter 7) to adapt to my country’s technical conditions;
f) Changed the normative reference document on moisture determination, replacing ISO 187 with GB/T 462 (see 8:1, ISO 5647:2019
8:1) to adapt to my country’s technical conditions;
g) Changed the normative reference document on ash content determination, replacing ISO 2144 with GB/T 742 (see 8:2, ISO 5647:
8:2) of:2019, to adapt to my country’s technical conditions;
h) Added quantitative filter paper for filtration of insoluble substances in ash solution (see 10:2) to adapt to my country's technical conditions;
i) Added requirements for the relative deviation of parallel measurement results (see Chapter 12) to adapt to my country's technical conditions:
The following editorial changes have been made to this document:
a) Added a note on the description of the ICP/AES determination method (see Chapter 4);
b) Added a note on the preparation of titanium dioxide standard solution (see 5:8):
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: Shandong Huatai Paper Co:, Ltd:, China Pulp and Paper Research Institute Co:, Ltd:, Xianhe Co:, Ltd:,
Huabang Tesinoca New Materials Co:, Ltd:, Shandong Product Quality Inspection Research Institute, Zhejiang Huakai Paper Co:, Ltd:, Zhejiang Xin Yalun
Paper Co:, Ltd:, Zhongqing Paper Products Inspection and Certification Co:, Ltd:, Zhongqing (Jinjiang) Sanitary Products Research Co:, Ltd:, Paper Industry Productivity Promotion
center:
The main drafters of this document: Su Yanqun, Cao Yuan, Li Xiaoliang, Sun Shengmin, Zhang Ruijuan, Huang Xueying, Xiao Wei, Cheng Yimin, Zhang Xiaofei, Wo Qizhong,
Ma Houyue, Zheng Huijuan, Wang Xing, Liu Dongfang, Yao Wei, Huang Jianrong, Liu Yang, Shen Zhenhuang, Li Hongkai:
The previous versions of this document and the documents it replaces are as follows:
---First published as GB/T 12910-1991 in:1991;
---This is the first revision:
Determination of titanium dioxide content in paper and paperboard
Warning---The methods specified in this document require the use of certain hazardous chemicals and may form explosive mixtures when mixed with air
When using gases, care must be taken to ensure that relevant safety precautions are followed:
1 Scope
This document describes methods for the determination of titanium dioxide content in paper and board using spectrophotometry and flame atomic absorption spectrophotometry:
This document is applicable to the determination of titanium dioxide content in various papers and paperboards, especially coated or filled papers and paperboards:
Note: This method is used to determine titanium dioxide: Titanium present in other forms will not interfere with the determination results:
2 Normative reference documents
The 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 603 Preparation of preparations and products used in chemical reagent test methods (GB/T 603-2023, ISO 6353-1:
1982,NEQ)
GB/T 742 Determination of burning residue (ash) of papermaking raw materials, pulp, paper and board (575℃ and 900℃) (GB/T 742-
2018,ISO 2144:2015,MOD)
GB/T 6682 Analytical laboratory water specifications and test methods (GB/T 6682-2008, ISO 3696:1987, MOD)
3 Terms and definitions
The following terms and definitions apply to this document:
3:1
The amount of titanium dioxide (in terms of absolute dry mass) measured after ashing the sample and dissolving the ash using the method specified in this document:
4 Principles
After the sample is ashed, the resulting ash is dissolved with sulfuric acid and ammonium sulfate solutions, and then hydrogen peroxide is added to develop the color using spectrophotometry:
Determination, or measurement by flame atomic absorption spectrophotometry after adding potassium chloride solution:
Note: After the sample is ashed and the ash is dissolved, the titanium dioxide content in the solution can also be determined using the proven inductively coupled plasma/atomic emission spectrometry method:
(ICP/AES) and so on:
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