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GB/T 25789-2023: p-Phenylenediamine
Status: Valid GB/T 25789: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 25789-2023 | English | 209 |
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p-Phenylenediamine
| Valid |
GB/T 25789-2023
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| GB/T 25789-2010 | English | 319 |
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p-Phenylenediamine
| Obsolete |
GB/T 25789-2010
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PDF similar to GB/T 25789-2023
Basic data | Standard ID | GB/T 25789-2023 (GB/T25789-2023) | | Description (Translated English) | p-Phenylenediamine | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G56 | | Classification of International Standard | 71.100.01; 87.060.10 | | Word Count Estimation | 10,113 | | Date of Issue | 2023-12-28 | | Date of Implementation | 2024-07-01 | | Older Standard (superseded by this standard) | GB/T 25789-2010 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 25789-2023: p-Phenylenediamine---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 71:100:01;87:060:10
CCSG56
National Standards of People's Republic of China
Replace GB/T 25789-2010
p-phenylenediamine
Published on 2023-12-28
2024-07-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Foreword
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 25789-2010 "P-phenylenediamine": Compared with GB/T 25789-2010, except for structural adjustments and editorial changes,
In addition, the main technical changes are as follows:
---Changed the quality requirements for p-phenylenediamine (see Chapter 4, Chapter 3 of the:2010 edition);
---Changed the sampling volume (see Chapter 6, Chapter 4 of the:2010 edition);
---Changed the appearance assessment method (see 7:2, 5:2 of the:2010 version);
---Added capillary melting point instrument method (see 7:3:2);
---Changed the chromatographic operating conditions (see 7:4:4, 5:4:4 of the:2010 edition):
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 Petroleum and Chemical Industry Federation:
This document is under the jurisdiction of the National Dyestuffs Standardization Technical Committee (SAC/TC134):
This document was drafted by: Zhejiang Annoaromatic Chemicals Co:, Ltd:, Shenyang Shenyang Chemical Institute Testing Technology Co:, Ltd:, Shenyang Chemical Industry Research Institute
Co:, Ltd:, Shenyang Chemical Testing Technology (Nantong) Co:, Ltd:, Xiamen Fengliyang Technology Co:, Ltd:
The main drafters of this document: Gu Qilong, Hu Yanbing, Gong Han, Zhao Zhimin, Li Zhenyi, Tao Jianguo, Li Jingyi, and Hu Zhiwen:
This document was first published in:2010 and this is the first revision:
p-phenylenediamine
Warning---Personnel using this document should have practical experience in regular laboratory work: This document does not address all possible security issues
question: Users are responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated in relevant national regulations:
1 Scope
This document stipulates the quality requirements, safety information, sampling, test methods, inspection rules, signs, labels, packaging, and transportation of paraphenylenediamine:
transport and storage:
This document applies to the quality control of p-phenylenediamine products:
Structural formula:
Molecular formula:C6H8N2
Relative molecular mass: 108:14 (according to 2022 international relative atomic mass)
CAS number:106-50-3
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 190 Dangerous goods packaging markings
GB/T 191-2008 Packaging, storage and transportation pictorial markings
GB/T 2384-2021 General method for determination of melting point range of dye intermediates
GB/T 6678-2003 General principles for sampling of chemical products
GB/T 8170-2008 Numerical rounding rules and representation and determination of limit values
GB/T 9722-2006 General rules for gas chromatography with chemical reagents
GB 12268-2012 List of dangerous goods
GB 12463 General technical conditions for transport and packaging of dangerous goods
GB 15258 Regulations on Preparing Chemical Safety Labels
GB 15603 General rules for warehouse storage of hazardous chemicals
GB/T 16483 Chemical Safety Data Sheet Contents and Project Sequence
3 Terms and definitions
There are no terms or definitions to be defined in this document:
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