Home Cart Quotation About-Us
www.ChineseStandard.net
SEARCH

GB/T 28768-2012 English PDF

Q: How long will the true-PDF of English version of GB/T 28768-2012 be delivered?

Upon your order, we will start to translate GB/T 28768-2012_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Q: Can I share the purchased PDF of GB/T 28768-2012_English with my colleagues?

Yes. The purchased PDF of GB/T 28768-2012_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Q: Does the price include tax/VAT?

Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries). Avoidance of Double Taxation Agreements (DTAs) between Singapore and 100+ Countries: https://www.iras.gov.sg/taxes/international-tax

Q: Do you accept my currency other than USD?

Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

US$529.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 28768-2012: Determination of hydrocarbon types and oxygenates in automotive-motor gasoline by multidimensional gas chromatography method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 28768-2012	529	Add to Cart	4 days	Determination of hydrocarbon types and oxygenates in automotive-motor gasoline by multidimensional gas chromatography method	Valid

Similar standards

GB 25199 GB/T 33646 GB/T 32066 GB 18351 GB/T 22030 GB/T 28769

Basic data

Standard ID: GB/T 28768-2012 (GB/T28768-2012)
Description (Translated English): Determination of hydrocarbon types and oxygenates in automotive-motor gasoline by multidimensional gas chromatography method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: E31
Classification of International Standard: 75.160.20
Word Count Estimation: 23,294
Quoted Standard: GB/T 4756; SY/T 5317
Adopted Standard: ISO 22854-2008, MOD
Regulation (derived from): National Standards Bulletin 2012 No. 28
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 use of gas chromatography gasoline saturated hydrocarbons, olefins and aromatics approach. This standard can also be measured in the benzene content in gasoline, oxygenates and total oxygen content. This standard applies to the

GB/T 28768-2012: Determination of hydrocarbon types and oxygenates in automotive-motor gasoline by multidimensional gas chromatography 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.
Determination of hydrocarbon types and oxygenates in automotive-motor gasoline by multidimensional gas chromatography method ICS 75.160.20 E31 National Standards of People's Republic of China Determination of motor gasoline hydrocarbons and oxygenates Multidimensional Gas Chromatography (ISO 22854.2008, Liquidpetroleumproducts-Determinationof Multidimensionalgaschromatographymethod, MOD) Issued on. 2012-11-05 2013-03-01 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 uses redrafted Law Amendment uses ISO 22854.2008 "Liquid petroleum products - motor gasoline hydrocarbons and oxygenates Multidimensional was measured by gas chromatography. " This standard and ISO 22854.2008 as compared to some adjustments in the structure, specific clauses control the situation, see Appendix A in Table A.1. this Standard and ISO 22854.2008 technical differences and for the following reasons. --- This standard adds aromatic olefins aromatics belonging explained in 3.1.3, "aromatic" terms and definitions, since the aromatic olefins containing Triple bond cyclic aromatic hydrocarbons; --- The standard method in the process of increasing the flow chart summary 4.1, to clarify the method of operation of the program (see Figure 1); --- This standard ISO 22854.2008 5.2 before the injection vial increase the "Applies to autosampler Used" content, to clarify To apply to the injection vial autosampler use (see 5.2); --- This standard ISO 22854.2008 in 8.1 "according to the manufacturer's instructions to meet the requirements of the instrument" to "Refer to Appendix B Instrument specifications required to configure equipment "in order to meet the requirements of this standard (see 8.1); --- The standard 8.4 increase in the recommended adequate gas flow parameters and the recommended conditions of temperature control system parameters, as well as a warning Add oxygenate proportion of pure components other oxygenates added complexity and purity pure component content in full Foot of the standard requirements; --- The standard 8.5 increase in the value of a standard reference sample obtaining methods to meet the requirements of this standard; --- The standard delete the ISO 22854.2008 8.6 "analysis sample preparation" and 8.7 "to prepare the instrument and test conditions" phase Off the content of this standard 8.6 adds the contents of sample analysis to simplify and improve procedures; --- This standard adds to Appendix C (normative), shows the recommended chromatography system controlled temperature parameters, and examples to supplement Chromatographic control conditions. This standard also includes the following editorial changes. --- This standard increases the volatilization of methanol in gasoline is relatively large in Note 4.2, the sample pre-treatment of such irregularities would Movies Affect its precision content to determine the type of samples attention; --- This standard adds support for compressed air, hydrogen and helium gas pipeline installation suitable gas purifier content 5.1.3 injection in order to Reduce interference chromatographic system; --- The standard car increased 5.3 Note the use of low sulfur content in gasoline example, in order to meet the requirements of this standard; --- This standard adds content 5A molecular sieve column in Appendix B, Table B.1, to supplement chromatographic configuration information. This standard by the National Standardization Technical Committee on products and lubricant oil (SAC/TC280) proposed. This standard by the National Standardization Technical Committee of petroleum products lubricants oil and lubricants and fuels Technical Committee (SAC/TC280 / SC1) centralized. This standard was drafted. China PetroChina Urumqi Petrochemical Company, China National Petroleum Company Limited SECRETARY Lanzhou lubricant research and development centers and China Petrochemical Research Institute of Oil and Gas Limited. Participated in the drafting of this Standard. China Petroleum & Chemical Corporation Refining Division, China Petroleum and Chemical Corporation Beijing Yan Hill Branch, China PetroChina Dalian West Pacific Petrochemical Company and Sinopec Yangzi Petrochemical Co., China shares the company. The main drafters of this standard. Chan Kwok-keung, Zhouya Bin, Li Yue, Zhao new branches, Ning Changqing, Zhang Baosheng, Wang Jianming, Wang Ling, Yin Tonghua, Liu Ling, Guo Jianmin, Dingtai Xi. Determination of motor gasoline hydrocarbons and oxygenates Multidimensional Gas Chromatography

1 Scope

This standard specifies the method of vehicle was saturated with gasoline hydrocarbons, olefins and aromatics was determined by gas chromatography. This standard can be measured by vehicle Benzene content in gasoline, oxygenates and total oxygen content. This standard applies to the determination of total aromatic content (volume fraction) of not more than 50% of the total olefin content (volume fraction) of 1.5% to 30% Oxygenate content (volume fraction) of 0.8% to 15%, the total oxygen content (mass fraction) of 1.5% to 3%, the benzene content (volume fraction) Less than 2% of motor gasoline. Note 1. The development of this standard, the final boiling point limit of 215 ℃. Note 2. The standard for oxygenate containing methyl tertiary butyl ether (MTBE), ethyl tertiary butyl ether (ETBE), tert-amyl methyl ether (TAME), isopropanol, Isobutanol, t-butanol, methanol and ethanol vehicle determines the precision of the sample data with gasoline, methanol precision data may not comply with this standard Precision listed formula. The applicability of the standard has also been confirmed for the determination of motor gasoline in n-propanol, acetone and diisopropyl ether (DIPE), but without the precision of the compounds are determined. Although this standard can be used to determine the olefin content (volume fraction) up to 50% of the gasoline samples, but only gives the olefin content (volume fraction) 1.5% to 30% of the precision data. Although this standard can be used with a car containing oxygenates in gasoline, but can also be used to analyze other with the same boiling range hydrocarbons, for example, Such as naphtha and reformate. Note 3. Although it may overlap aromatic carbons 9 and 10, but the total is accurate, cumene separated from the aromatics in the carbon contained in the carbon 9 aromatic Hydrocarbons.

2 Normative references

The following documents for the application of this document is essential, dated references, only the dated version suitable for use herein Member, undated references, the latest edition (including any amendments) applies to this document. GB/T 4756 petroleum liquids hand sampling method (GB/T 4756-1998, eqv ISO 3170. 1988) SY/T 5317 petroleum liquids pipeline automatic sampling (SY/T 5317-2006, ISO 3171. 1988, IDT)

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Hydrocarbon hydrocarbongroup The same type of hydrocarbon. For example. saturated hydrocarbons and olefins and the like. 3.1.1 Saturated hydrocarbons saturatedhydrocarbon It does not contain any double bond number from 3 to 12 carbon atoms in linear or cyclic hydrocarbons. For example. n-paraffins, iso-paraffins, naphthenic Hydrocarbons and polycyclic hydrocarbons. ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 28768-2012_English be delivered?

Answer: Upon your order, we will start to translate GB/T 28768-2012_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 28768-2012_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 28768-2012_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.