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GB/T 4117-2008: Methylene chloride for industrial use
Status: Valid GB/T 4117: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 4117-2008 | English | 169 |
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Methylene chloride for industrial use
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GB/T 4117-2008
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| GB/T 4117-1992 | English | 239 |
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Methylene chloride for industrial use
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GB/T 4117-1992
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PDF similar to GB/T 4117-2008
Basic data | Standard ID | GB/T 4117-2008 (GB/T4117-2008) | | Description (Translated English) | Methylene chloride for industrial use | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G17 | | Classification of International Standard | 71.080.15 | | Word Count Estimation | 7,716 | | Date of Issue | 2008-04-01 | | Date of Implementation | 2008-09-01 | | Older Standard (superseded by this standard) | GB/T 4117-1992; GB/T 4120.3-1992; GB/T 4120.5-1992; GB/T 4120.6-1992 | | Quoted Standard | GB 190-1990; GB/T 191-2000; GB/T 601; GB/T 603; GB/T 1250 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.5 (Total No.118) | | 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 use methylene chloride, test methods, inspection rules, signs, packaging, transport, storage, safety. This standard applies to the production of methanol and hydrogen chloride process methylene chloride production, inspection and sales. The products are mainly used in solvent, extraction agent, cleaning agent, blowing agents, mold release agents, and for the production of Difluoromethane raw materials and pharmaceutical industries. | GB/T 4117-2008: Methylene chloride 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.
Methylene chloride for industrial use
ICS 71.080.15
G17
National Standards of People's Republic of China
Replacing GB/T 4117-1992, GB/T 4120.3-1992, GB/T 4120.5 ~ 4120.6-1992
Industrial dichloromethane
Posted 2008-04-01
2008-09-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard replaces GB/T 4117-1992 "Industrial methylene chloride", GB/T 4120.3-1992 "industrial liquid chlorinated methane products
Determination of acidity titration method ", GB/T 4120.5-1992" Industrial Liquid chlorinated methanes trace water cloud point measurement method "and
GB/T 4120.6-1992 "industrial liquid chlorinated methane products packaging, labeling, storage, transport and inspection rules."
This standard compared with GB/T 4117-1992 The main changes are as follows.
--- By the scope "This standard applies to natural gas heat and light chlorination chlorination of methylene chloride" to "This standard applies to methanol
Hydrogen chloride process in dichloromethane "(GB/T 4117-1992 Chapter 1, Chapter 1 of this edition);
--- Technical requirements for Excellence in methylene chloride mass fraction ≥99.5% by the index revised to ≥99.90%, from the first-class goods index
≥99.0% revised to ≥99.50%, qualified products ≥98.0% by the index revised to ≥99.20%; moisture index for Excellence by the
≤0.040% revised to ≤0.010%, from the first-class goods index ≤0.050% revised to ≤0.020%, qualified for the index
≤0.060% revised to ≤0.030%; acidity of first-class goods index by the ≤0.0008% revised to ≤0.0004%, qualified product index
By the ≤0.0010% revised to ≤0.0008%; evaporation residue from the first-class goods index ≤0.0010% revised to ≤0.0005%,
Qualified indicators by the ≤0.0030% revised to ≤0.0010% (GB/T 4117-1992 3.2, this version 3.2);
--- Test method to measure the purity of references GB/T 21541-2008 "industrial use - Determination of chlorinated methane gas purity products
Chromatography. " Determination of Water canceled cloud point, increasing the Karl Fischer Coulomb law and the provisions of Karl Fischer Coulomb
Law arbitration law; to increase the appearance test method (GB/T 4117-1992 Chapter 4, Chapter 4 of this edition);
--- Inspection rules and signs, packaging, storage and transport is divided into two chapters to write (GB/T 4117-1992 Chapter 5, the 5th edition
, Chapter 6);
--- Added "drugs" signs (see 6.1);
--- Added "Security" chapter (see Chapter 7).
Please note that some of the content of this standard may involve patents. The standard release mechanism should not bear the responsibility to identify these patents.
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. Zhejiang Quzhou of fluorine chemistry Co., Haohua Southwest Chemical Industry Co., Ltd.
Participated in the drafting of this standard. Shandong Dongyue Fluorine Silicone Materials Co., Ltd., Shandong Jinling Chemical Co., Ltd.
The main drafters of this standard. Liu Hongxiu, Chenke Feng, Tang Yueming, Zhang and Wang Mi, Chen Caiqin, Tanxian Wen.
GB/T 4117, GB/T 4120.3, GB/T 4120.5, GB/T 4120.6 first released in 1983 and 1992 for the first time
Amendments.
Industrial dichloromethane
1 Scope
This standard specifies the requirements for industrial use methylene chloride, test methods, inspection rules, marking, packaging, transportation, storage and security.
This standard applies to the production of methanol and hydrogen chloride process methylene chloride production, testing and marketing. The products are mainly used in solvent extraction
Cleaning agents, blowing agents, mold release agents, and for the production of difluoromethane (HFC-32) and the pharmaceutical industry raw materials.
Molecular formula. CH2Cl2.
Molecular Weight. 84.932 (according to 2005 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 190-1990 dangerous goods packaging logo
GB/T 191-2000 Packaging - Pictorial signs
Preparation of GB/T 601 chemical reagent standard titration solution
GB/T 603 chemical reagent in test methods - Preparations with (ISO 6353-1. 1982, NEQ)
Represents GB/T 1250 limit values \u200b\u200band the method of determining
GB/T 3143-1982 Determination of color liquid chemicals (Hazen unit --- platinum - cobalt color number)
GB/T 6283-1986 Determination of moisture content of chemical products Karl Fischer method (General method)
GB/T 6324.2-2004 organic chemical products - Test methods - Part 2. Volatile organic liquid water bath dry residue after evaporation
Determination (ISO 759. 1981, MOD)
GB/T 6678-2003 General Principles for Sampling Chemical Products
GB/T 6680-2003 General rules for sampling liquid chemical products
Laboratory use specifications and test methods (. 1987 eqv ISO 3696) GB/T 6682-1992 Analysis
GB/T 21541-2008 industrial chlorinated methane product purity determined by gas chromatography
3 Requirements
3.1 Appearance. colorless clear, no suspension, no liquid mechanical impurities.
3.2 Industrial quality dichloromethane shall comply with the technical requirements in Table 1 below.
Table 1 Technical Requirements
project
index
Premium grade First grade Qualified
Methylene chloride mass fraction a /% ≥ 99.90 99.50 99.20
Water mass fraction /% ≤ 0.010 0.020 0.030
Acid (based on HCl) mass fraction /% ≤ 0.0004 0.0008
Chroma/Hazen units (Pt-Co color number) ≤ 10
Evaporation residue mass fraction /% ≤ 0.0005 0.0010
Amount of stabilizer added is not included in a methylene chloride content.
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