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GB/T 684-2023: Chemical reagent - Toluene
Status: Valid GB/T 684: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 684-2023 | English | 189 |
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Chemical reagent - Toluene
| Valid |
GB/T 684-2023
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| GB/T 684-1999 | English | 239 |
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Chemical reagent. Toluene
| Obsolete |
GB/T 684-1999
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| GB/T 684-1986 | English | RFQ |
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Chemical reagents--Toluene
| Obsolete |
GB/T 684-1986
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PDF similar to GB/T 684-2023
Basic data | Standard ID | GB/T 684-2023 (GB/T684-2023) | | Description (Translated English) | Chemical reagent - Toluene | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G63 | | Classification of International Standard | 71.040.30 | | Word Count Estimation | 10,157 | | Date of Issue | 2023-08-06 | | Date of Implementation | 2024-03-01 | | Older Standard (superseded by this standard) | GB/T 684-1999 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | Standard similar to GB/T 684-2023 GB/T 678 GB/T 15478 GB/T 687 GB/T 693 GB/T 684-2023: Chemical reagent - Toluene---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 71.040.30
CCSG63
National Standards of People's Republic of China
Replace GB/T 684-1999
chemical reagent toluene
Part 2.Specifications-Firstseries,NEQ)
Published on 2023-08-06
2024-03-01 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 684-1999 "Chemical Reagent Toluene". Compared with GB/T 684-1999, except for structural adjustment and editing
In addition to the modifications, the main technical changes are as follows.
---Added liquid chromatography purity grade, technical requirements, and determination methods (see Chapter 5 and Chapter 6);
---The units of acidity and alkalinity have been changed from "mmol/100g" to "mmol/g" (see Chapter 5, Chapter 4 of the.1999 edition);
---Changed the determination method of toluene (see 6.2, 5.1 of the.1999 edition);
---Determination method of vibrating liquid density meter with increased density (see 6.4);
---Changed the packaging and logo (see Chapter 8, Chapter 7 of the.1999 edition).
This document is drafted with reference to ISO 6353-2.1983 "Chemical Analysis Reagents Part 2.Specifications Series 1", and the degree of consistency is not
Equivalent.
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 Chemical Reagents Sub-Technical Committee of the National Chemical Standardization Technical Committee (SAC/TC63/SC3).
This document was drafted by. Jiangsu Qiangsheng Functional Chemical Co., Ltd., Anhui Shilian Special Solvents Co., Ltd., Beijing Chemical Laboratory
Chemical Research Institute Co., Ltd., Changshu Binjiang Chemical Co., Ltd.
The main drafters of this document. Zhou Yi, Ying Li, Fang Ping, Chen Xiaolan, Zhao Jifei, Wang Yuhua, Han Baoying, Gu Jianfeng, Gui Xianghong, He Ling.
This document was first published in 1965, revised for the first time in 1978, revised for the second time in 1986, and revised for the third time in.1999.This time it is
Fourth revision.
chemical reagent toluene
Warning. Some test procedures specified in this document may lead to hazardous situations, and the user is responsible for taking appropriate safety and health measures.
1 Scope
This document specifies the properties, technical requirements, test methods, inspection rules, packaging and marking of the chemical reagent toluene.
This document applies to the inspection of the chemical reagent toluene.
Note. The chemical reagent toluene has the chemical formula C6H5CH3, a relative molecular mass of 92.14 (according to the 2022 international relative atomic mass), and a CAS number of 108-
88-3.
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/T 601 Preparation of chemical reagent standard titration solution
GB/T 602 Preparation of standard solutions for determination of impurities in chemical reagents
GB/T 603 Preparation of preparations and products used in chemical reagent test methods
GB/T 605 General method for colorimetric determination of chemical reagents
GB/T 606 General method for determination of moisture content of chemical reagents. Karl Fischer method
GB/T 611-2021 General method for density determination of chemical reagents
GB/T 6682 Specifications and test methods for water used in analytical laboratories
GB/T 9721-2006 General rules for molecular absorption spectrophotometry of chemical reagents (ultraviolet and visible light parts)
GB/T 9722-2006 General rules for gas chromatography with chemical reagents
GB/T 9728 General method for determination of chemical reagent sulfate
GB/T 9736-2008 General method for determination of acidity and alkalinity of chemical reagents
GB/T 9737-2008 General rules for determination of substances easily carbonized by chemical reagents
GB/T 9740 General method for determination of chemical reagent evaporation residues
GB 15258 Regulations on Preparing Chemical Safety Labels
GB 15346 Chemical reagent packaging and marking
HG/T 3921 Chemical reagent sampling and acceptance rules
3 Terms and definitions
There are no terms or definitions to be defined in this document.
4 traits
Toluene is a colorless and transparent liquid, insoluble in water, miscible with organic solvents such as ethanol, ether, and chloroform, and is flammable.
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