GB/T 12701-2014 English PDF

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GB/T 12701-2014: Ethylene and propylene for industrial use -- Determination of trace oxygenates -- Gas chromatographic method
Status: Valid

GB/T 12701: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 12701-2014	229	Add to Cart	3 days	Ethylene and propylene for industrial use -- Determination of trace oxygenates -- Gas chromatographic method	Valid
GB/T 12701-1990	199	Add to Cart	2 days	Ethylene and propylene for industrial use--Determination of trace of methanol--Gas chromatographic method	Obsolete

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Basic data

Standard ID: GB/T 12701-2014 (GB/T12701-2014)
Description (Translated English): Ethylene and propylene for industrial use -- Determination of trace oxygenates -- Gas chromatographic method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G16
Classification of International Standard: 71.080.10
Word Count Estimation: 10,193
Date of Issue: 7/8/2014
Date of Implementation: 12/1/2014
Older Standard (superseded by this standard): GB/T 12701-1990
Quoted Standard: GB/T 3723; GB/T 8170; GB/T 13289; GB/T 13290
Regulation (derived from): 2014 National Standards Bulletin No. 18
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 determination by gas chromatography for industrial use ethylene content propylene trace oxygenates. This standard is not intended to illustrate its use of all safety-related issues. The user's responsibility to take appropriate

GB/T 12701-2014: Ethylene and propylene for industrial use -- Determination of trace oxygenates -- Gas chromatographic method

---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.
Ethylene and propylene for industrial use. Determination of trace oxygenates. Gas chromatographic method ICS 71.080.10 G16 National Standards of People's Republic of China Replacing GB/T 12701-1990 Industrial ethylene, propylene containing trace Gas chromatography oxides Issued on. 2014-07-08 2014-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB/T 12701-1990 "industrial use of ethylene, propylene trace of methanol by gas chromatography." This standard and GB/T 12701-1990 compared to the main changes are as follows. --- Standard name was changed to "industrial use of ethylene, propylene trace oxygen-containing compounds by Gas Chromatography"; --- By the range of the standard "applies to the methanol content of greater than 1mg/kg sample" to "apply to methanol, dimethyl ether, methyl tert-butyl Ether, acetaldehyde, ethanol, isopropanol, acetone and methyl ethyl ketone concentration of not less than 0.5mg/m3 of ethylene, propylene, "(see Chapter 1, 1990 Chapter 1 edition of); --- Modify the column by a packed column capillary column (see Chapter 5, Table 1, the 1990 edition Chapter 5); --- Revised standards formulated relevant content (see Chapter 4, Chapter 4 of the 1990 edition); --- Modify the vaporization means and injection means the content (see Chapter 5, Chapter 5 of the 1990 edition); --- Cancel the original standard absorber and sample enrichment operations related content (see the 1990 edition Chapter 5, Chapter 6); --- Modify the calculation and the results indicate the content (see Chapter 8, 1990 edition of Chapter 7, Chapter 8). The standard proposed by China Petroleum and Chemical Corporation. This standard by the National Standardization Technical Committee Petrochemical Chemical Technical Committee (SAC/TC63/SC4) centralized. This standard was drafted. China Petroleum & Chemical Corporation Shanghai Research Institute of Petrochemical. The main drafters of this standard. Li Wei, Tang Qimin. This standard replaces the standards previously issued as follows. --- GB/T 12701-1990. Industrial ethylene, propylene containing trace Gas chromatography oxides

1 Scope

1.1 standard specifies the determination by gas chromatography for industrial use ethylene content propylene trace oxygenates. 1.2 This standard applies to methanol, dimethyl ether, methyl tert-butyl ether, acetaldehyde, ethanol, isopropanol, acetone and methyl ethyl ketone concentration of not less than Ethylene 0.5mL/m3, the measurement of propylene. Note. The traditional routes of oil production of ethylene and propylene products usually contain methanol, an oxygen-containing compound impurities; coal to olefins technology to produce ethylene, propylene Products may contain methanol and 1.2 other oxygenates impurities. 1.3 This standard is not intended to illustrate its use of all safety-related issues. The user's responsibility to take appropriate safety and health measures Facilities, to ensure compliance with the provisions of the relevant national regulations.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 3723 Sampling of chemical products for industrial use General Safety (GB/T 3723-1999, idt ISO 3165. 1976) GB/T 8170 repair value expressed about the rules and limit values \u200b\u200band judgment GB/T 13289 Industrial liquid and gaseous ethylene sampling method (GB/T 13289-2014, ISO 7382. 1986, NEQ) GB/T 13290 Industrial liquid propylene and butadiene sampling method (GB/T 13290-2014, ISO 8563. 1987, NEQ)

3 PRINCIPLE OF THE METHOD

Under the conditions specified in this standard, (or after vaporization of the liquid) sample gas through the gas injection means is a carrier gas into the column. So each containing Oxygen compound component separation, detection by flame ionization detector (FID). Record the oxygen-containing compound component peak area using external standard method Quantified.

4 Reagents and materials

4.1 The carrier gas Helium or nitrogen. purity ≥99.99% (volume fraction), silica gel and molecular sieve 5A dried, purified. 4.2 auxiliary gas 4.2.1 Hydrogen. purity ≥99.99% (volume fraction), silica gel and molecular sieve 5A dried, purified. 4.2.2 Air. silica gel and molecular sieve 5A dried, purified. 4.3 oxygenate Methanol, dimethyl ether, methyl tert-butyl ether, acetaldehyde, ethanol, isopropanol, acetone and methyl ethyl ketone, etc., used for the preparation of standards. Purity should not be less than 99.0% (mass fraction). ......

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