GB/T 24772-2009 English PDF

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GB/T 24772-2009: Tetrahydrofuran for industrial use
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 24772-2009	279	Add to Cart	3 days	Tetrahydrofuran for industrial use	Valid

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Basic data

Standard ID: GB/T 24772-2009 (GB/T24772-2009)
Description (Translated English): Tetrahydrofuran for industrial use
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G17
Classification of International Standard: 71.100.99
Word Count Estimation: 12,180
Date of Issue: 2009-12-15
Date of Implementation: 2010-07-01
Quoted Standard: GB 190; GB/T 325.1; GB/T 3143; GB/T 6283-2008; GB/T 6678; GB/T 6680; GB/T 6682-2008; GB/T 8170; GB/T 9722-2006
Regulation (derived from): National Standard Approval Announcement 2009 No.15
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 tetrahydrofuran, test methods, inspection rules and signs, packaging, transport and storage. This standard applies to industrial production of tetrahydrofuran, inspection and sales.

GB/T 24772-2009: Tetrahydrofuran 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.
Tetrahydrofuran for industrial use ICS 71.100.99 G17 National Standards of People's Republic of China Industrial tetrahydrofuran Posted 2009-12-15 2010-07-01 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, Appendix B is an informative annex. 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 is drafted by. Shanxi Sanwei Group Co., Ltd. Participated in the drafting of this standard. Dongying Shengli Chemical Co., Ltd. Central Asia. The main drafters. Zhang Jianping, Sun Zijin, Maxiu Dong Liang Xiao Yuan, Yang Yumei, Guya Li, Chen Rongxin, Xu Hongping. Industrial tetrahydrofuran

1 Scope

This standard specifies the requirements for industrial use tetrahydrofuran, test methods, inspection rules and signs, packaging, transportation and storage. This standard applies to industrial tetrahydrofuran production, testing and marketing. Chemical formula. C4H8O Structure. Molecular Weight. 72.13 (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 325.1 packaging container drums - Part 1. General technical requirements GB/T 3143 Determination of color liquid chemicals (Hazen unit --- platinum - cobalt color number) GB/T 6283-2008 Determination of chemical products, water content Karl Fischer method (General method) (ISO 760. 1978, NEQ) GB/T 6678 General Principles for Sampling Chemical Products GB/T 6680 General rules for sampling liquid chemical products GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD) GB/T 8170 repair value expressed about the rules and limit values and judgment GB/T 9722-2006 General chemical reagent gas chromatography

3 Requirements

3.1 Appearance. colorless, transparent liquid, no visible impurities. 3.2 Industrial tetrahydrofuran shall comply with the technical requirements in Table 1 below. Table 1 Technical Requirements project index Excellence Qualified Tetrahydrofuran, /% ≥ 99.95 99.80 Chroma/Hazen units (platinum - cobalt color number) ≤ 5 10 Water, /% ≤ 0.02 0.05 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. ......

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