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GB/T 4118-2008 English PDF

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GB/T 4118-2008: Trichloromethane for industrial use
Status: Valid

GB/T 4118: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 4118-2008English139 Add to Cart 3 days [Need to translate] Trichloromethane for industrial use Valid GB/T 4118-2008
GB/T 4118-1992English279 Add to Cart 3 days [Need to translate] Trichloromethane for industrial use Obsolete GB/T 4118-1992

PDF similar to GB/T 4118-2008


Standard similar to GB/T 4118-2008

GB/T 2092   GB/T 3729   GB/T 3209   GB/T 4119   GB/T 4117   

Basic data

Standard ID GB/T 4118-2008 (GB/T4118-2008)
Description (Translated English) Trichloromethane for industrial use
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G17
Classification of International Standard 71.080.15
Word Count Estimation 6,670
Date of Issue 2008-04-01
Date of Implementation 2008-09-01
Older Standard (superseded by this standard) GB/T 4118-1992
Quoted Standard GB 190-1990; GB/T 191-2000; 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 chloroform, test methods, inspection rules, signs, packaging, transport, storage, safety. This standard applies to the production of methanol and hydrogen chloride process chloroform production, inspection and sales. The products are mainly used in the manufacture of the refrigerant, also used as a solvent, extraction agent, medicine and dye intermediates.

GB/T 4118-2008: Trichloromethane 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.
Trichloromethane for industrial use ICS 71.080.15 G17 National Standards of People's Republic of China Replacing GB/T 4118-1992 Industrial chloroform 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 4118-1992 "Industrial chloroform." This standard compared with GB/T 4118-1992 The main changes are as follows. --- By the scope of the "standard applies to methane chloride, acetaldehyde, chloral alkaline hydrolysis, light chlorination chloroform" change To "This standard applies to the production of methanol and hydrogen chloride process chloroform" (GB/T 4118-1992 Chapter 1, Excerpts Chapter 1); --- Technical requirements chloroform mass fraction ≥99.5% by the index superior product to ≥99.90%, from the first-class products ≥99.0% change Of ≥99.50%, by the qualified products ≥98.0% to ≥99.20%; moisture index of ≤0.03% by the superior product to ≤0.010%, First grade made ≤0.03% to ≤0.020%, qualified goods from ≤0.05% to ≤0.030%; superior product by the acidity index ≤0.001% to ≤0.0004%, first-class product by the ≤0.001% to ≤0.0006%, quality products to the ≤0.003% ≤0.0010%; superior product by the carbon tetrachloride content index ≤0.05% to ≤0.04%, from the first-class product to ≤0.2% ≤0.08%, qualified products as ≤0.20% (GB/T 4118-1992 3.2, this version 3.2); --- Test methods, increasing the appearance of the test method; determination of the content of chloroform references GB/T 21541-2008 "industrial chlorinated Methane product purity determined by gas chromatography "; determination of water acidity by reference to standard GB/T 4120 is amended as GB/T 4117-2008 (GB/T 4118-1992 Chapter 4, Chapter 4 of this edition); --- Inspection rules and packaging, labeling, storage and transport is divided into two chapters to write (GB/T 4118-1992 Chapter 5 of this edition, Chapter 5 And Chapter 6); --- Packaging, labeling, storage and transport increased by "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. Haohua Southwest Chemical Industry Co., Ltd. Zhejiang Quzhou of fluorine chemistry. 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. Jintao, Cao Yong, Shen Rong governance, Zhang Di. This standard was first published in 1983, in 1992 the first amendment. Industrial chloroform

1 Scope

This standard specifies the requirements for industrial use chloroform, test methods, inspection rules, marking, packaging, transportation, storage and security. This standard applies to the production of methanol and hydrogen chloride process chloroform production, testing and marketing. The products are mainly used in the manufacture refrigeration Agent, also used as a solvent extraction agent, medicine and dye intermediates. Formula. CHCl3. Molecular Weight. 119.378 (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 (eqv ISO 780.1997) 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 4117-2008 industrial dichloromethane 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 chloroform industrial quality should meet the technical requirements in Table 1 below. Table 1 Technical Requirements project index Premium grade First grade Qualified Chloroform mass fraction a /% ≥ 99.90 99.50 99.20 CTC mass fraction /% ≤ 0.04 0.08 0.20 Water mass fraction /% ≤ 0.010 0.020 0.030 Acid (based on HCl) mass fraction /% ≤ 0.0004 0.0006 0.0010 Chroma/Hazen units (Pt-Co color number) ≤ 10 15 25 Amount of stabilizer added is not included in a mass fraction of chloroform.

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