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GB/T 23960-2009: Catechol for industrial use
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 23960-2009 | English | 229 |
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Catechol for industrial use
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GB/T 23960-2009
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Basic data | Standard ID | GB/T 23960-2009 (GB/T23960-2009) | | Description (Translated English) | Catechol for industrial use | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G17 | | Classification of International Standard | 71.080.90 | | Word Count Estimation | 10,133 | | Date of Issue | 2009-06-02 | | Date of Implementation | 2010-02-01 | | Quoted Standard | GB 190; GB/T 617-2006; GB/T 1250; GB/T 6678-2003; GB/T 6679-2003; GB/T 6682-2008; GB/T 7531-2008 | | Regulation (derived from) | National Standard Approval Announcement 2009 No.8 (Total No.148) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the requirements for industrial catechol, test methods, inspection rules, signs, packaging, transport, storage and security. This standard applies to the legal system of phenol hydroxylation industrial production of ortho -diphenol stupid, inspection and sales. | GB/T 23960-2009: Catechol for industrial use---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.
Catechol for industrial use
ICS 71.080.90
G17
National Standards of People's Republic of China
Industrial catechol
Posted 2009-06-02
2010-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
Appendix A of this standard is a normative appendix.
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee branch of organic chemistry (SAC/TC63/SC2) centralized.
This standard was drafted. Chemical Industry Co., Ltd. Lianyungang Sanjili.
Participated in the drafting of this standard. Rhodia Zhenjiang Chemicals Limited.
The main drafters of this standard. Liu marked, Chensu Qing, Xu Juan, Wang Hengqi.
Industrial catechol
1 Scope
This standard specifies the requirements for industrial use catechol, test methods, inspection rules, marking, packaging, transportation, storage, and security.
This standard applies to legal hydroxylation of phenol was catechol industrial production, testing and marketing.
Molecular formula. C6H6O2
Structure. handkerchief
division
OH
OH
Molecular weight. 110.11 (according to 2007 international relative atomic mass)
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB 190 packaging and marking of dangerous goods
GB/T 617-2006 Chemical Reagent melting range determination General Method
Representation GB/T 1250 limit values \u200b\u200band the method of determining
GB/T 6678-2003 General Principles for Sampling Chemical Products
GB/T 6679-2003 General rules for sampling solid chemical products
GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD)
GB/T 7531-2008 organic chemical products Determination of residue on ignition (ISO 6353-1. 1982, NEQ)
3 Requirements
3.1 Appearance. light gray to light brown crystals.
3.2 Industrial catechol shall comply with the technical requirements in Table 1 below.
Table 1 Technical Requirements
project
index
Excellence Qualified
Catechol, w1 /% ≥ 99.0 98.0
Final melting point/℃ 103 ~ 106
Residue on ignition, w1 /% ≤ 0.04
Test Method 4
4.1 Warning
Some test procedures prescribed test method can lead to dangerous situations, the operator should take appropriate safety and health practices.
Standards with nitric acid, hydrochloric acid and other corrosive chemicals, care should be taken to avoid skin contact.
4.2 General provisions
Unless otherwise indicated in the analysis using only recognized as an analytical reagent and water in line with GB/T 6682-2008 stipulated.
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