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This standard adopts ASTM D5797: 2007 "Standard Specifications for Fuel Methanol (M70-M85) for Automotive Spark-Ignition Engines" (English edition) with equivalent modification, and the comparison on chapter and section of this standard and ASTM D5797: 2007 is detailed in Annex D.
The main differences between this standard and ASTM D5797: 2007 are as:
——As for normative references, this standard adopts corresponding national standards or petrochemical industry standards if the related national standards or petrochemical industry standards in China have been implemented; if there is no related standards in China, this standard adopts the normative documents in ASTM D5797: 2007;
——The arbitration test is appointed;
——Cancel the grade of fuel methanol (M70~M85) specified according to geographic position and environment temperature scope, and set up only a methanol gasoline (M85) for motor vehicles;
——Revise the appearance index in the former standard, change "clear and bright liquid" in the former standard to "jacinth transparent liquid", and make the provisions in the formation of the color "jacinth";
——Revise the vapor pressure limit of fuel methanol (M85) in the former standard to "not larger than 78 kPa from November 1 to April 30, and not larger than 68 kPa from May 1 to October 31";
——Revise the sulfur content limit of fuel methanol (M85) in the former standard from "not larger than 160mg/kg" to "not larger than 80mg/kg", cancel the test method of sulfur content ASTM D1266 "Standard Test Method for Sulfur in Petroleum Products (Lamp Method) ";
——Cancel the phosphorus content index in the former standard, and add the sodium content index and its test method;
——Add the test method of lead content and water content; revise the lead content index from "not larger than 2.6 mg/L" to "not larger than 2.5 mg/L"; cancel the test method of vapor pressure in the former standard;
——Add manganese content limit (not larger than 2.9 mg/L);
——Add the note in the tables "effective metallic corrosion depressor and motor gasoline detergent meeting the requirements of GB 19592 shall be added" and "additive containing iron, lead and phosphorus, and halide additives that do harm to the vehicle reliability and after-treatment system must not be added artificially";
——Add the chapters "test rules", "marking, packaging, transportation and storage" and "safety";
——Adopt and revise Appendix A1 and Appendix A2 in the former standard to annex A (normative) and Annex B; add annex C (normative) and Annex D (informative);
——Cancel Chapter "keyword", Appendix A3, Appendix X1 and Appendix X2.
Annex A, Annex B and Annex C in this standard are normative, and Annex D is informative.
This standard is proposed by the National Technical Committee for Standardization of Petroleum Product and Lubricant (SAC/TC 280).
This standard is under the jurisdiction of the National Technical Committee for Standardization of Petroleum Product and Lubricant -- Petroleum Fuel and Lubricant sub-committee (SAC/TC 280 /SC1).
Drafting organizations: Shanghai Internal Combustion Engine Research Institute, Shenzhen Jimmy Chemical Technology Co., Ltd., Shanghai Coking and Chemical Corporation, Technical Center of Shanghai Automotive (Group) Co., Ltd., China National Offshore Oil Corporation, Shanxi Jiaxin Energy and Chemical Industry Co., Ltd., Beijing Xiongtaoweiye Energy Technologies Development Co., Ltd.
Participating organizations: ENN Group, Shaanxi Yanchang Zhongli New Energy Co., Ltd., Shanxi Huadun Industry Co., Ltd., Shanghai Maple Automobile Company, Jiangsu Nanjing University High-tech Domain Co., Ltd., Xinjiang Shiji Petrochemical Industry Co., Ltd.
Chief drafting staffs: Lan Zhibo, Yang Youwen, Qi Hongyuan, Li Ruibo, Xie Zhenhua, Shi Lei, Tang Chen, Liu Fanghua, Song Jinhuan, Wang Jianzhong
This standard is firstly issued.
Contents
1 Scope 1
2 Normative references 1
3 Terms, definitions and abbreviations 2
4 Requirements and test method 3
5 Test Rules 4
6 Marking, packaging, transportation and storage 4
7 Safety 5
Annex A (Normative) 6
Annex B (Normative) 14
Annex C (Normative) 16
Annex D (Informative) 20
Bibliography 21
Methanol Gasoline (M85) for
Motor Vehicles
車用甲醇汽油(M85)
1 Scope
This standard specifies terms and definitions, abbreviation, requirements and test method, test rules, marking, and packaging, transportation and storage, and safety of methanol gasoline (M85) for motor vehicles mixed by 84%~86% (volume fraction) methanol, 16%~14% (volume fraction) gasoline (M85) for motor vehicles and additive to improve service performance.
The product that this standard applies is applicable to be used as fuel for methanol gasoline (M85) spark-ignition engine.
The molecular formula of methanol is CH3OH.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties whose enter into agreement according to these specifications are encouraged to research whether the latest editions of these labels are applied or not. For undated references, the latest edition of the normative document is applicable to these specifications.
GB 190 Packing symbol of dangerous goods
GB/T 4756 Petroleum liquids -- Manual sampling (GB/T 4756-1998, eqv IS0 3170: 1988)
GB/T 6283 Chemical products -- Determination of water Karl·Fischer method (general method)) (GB/T 6283-2008, ISO 760: 1978, NEQ)
GB/T 6682 Water for analytical laboratory use -- Specification and test methods (GB/T 6682--2008, IS0 3696: 1987, MOD)
GB/T 8019 Standard test method for gum content in fuels - jet evaporation
GB/T 8020 Gasoline - Determination of lead content - Atomic absorption spectrometry
GB/T 9725-2007 Chemical reagent— General rule for potentiometric titration
GB/T 11140 Standard test method for sulfur in petroleum products by wavelength dispersive X-ray fluorescence spectrometry
GB 12268 List of dangerous goods
GB 13690 Classification and labels of dangerous chemical substances commonly used
GB/T 16483 Safety data sheet for chemical products— Content and order of sections
GB/T 17476 Standard test method for determination of additive elements, wear metals, and contaminants in used lubricanting oils and determination of selected elements in base oils by inductively coupled plasma atomic emission spectrometry (ICP-AES))
GB 17930 Gasoline for motor vehicles
GB/T 18612 Determination of organic chloride content in crude oil by combustion and microcoulometry
GB 19592 Detergent additive fore vehicular gasoline
SH 0164 Petroleum products -- Rules in packaging, handling, delivery and acceptance
SH/T 0253 light petroleum products - determination of total sulfur (coulometric method)
SH/T 0663 determination of alcohols and ethers in gasoline (vapor phase chromatography)
SH/T 0689 light hydrocarbon, engine fuel and other oil products -- determination of total sulfur (UV fluorescence method)
SH/T 0711 Gasoline - determination of manganese content (atomic absorption spectrometry)
SH/T 0794 Standard test method for vapor pressure of petroleum products (mini method)
ASTM D512 Standard Test Methods for Chloride Ion in Water (Method C)
ASTM D872 Test Method for Sulfonation Index of Road Tars
ASTM D1613 Standard Test Method for Acidity in Volatile Solvents and Chemical Intermediates Used in Paint, Varnish, Lacquer, and Related Products
ASTM D4626 Standard Practice for Calculation of Gas Chromatographic Response Factors
ASTM D5059 Standard Test Methods for Lead in Gasoline by X-Ray Spectroscopy)
ASTM E203 Standard Test Method for Water Using Volumetric Karl Fischer Titration)
3 Terms, definitions and abbreviations
The following terms, definitions and abbreviations are applicable to this standard.
3.1 Aliphatic ether
Oxygen-containing, ashless, organic compound in which the oxygen atom is interposed between two carbon atoms (organic groups), has the general formula CnH2n+2O with n being 5 to 8. The aliphatic ether in this standard refers to only saturated compound.
3.2 Methanol gasoline (M85) for motor vehicles
Products mixed by methanol and gasoline for motor vehicles
Note: the addition of methanol is 84% ~ 86% (volume fraction).
3.3 Higher alcohols
Aliphatic alcohols of the general formula CnH2n+1OH with carbon number being 2 to 8
3.4 Hydrocarbon
Those components in an ethanol-hydrocarbon blend containing only hydrogen and carbon.
3.5 Low-volume connector
Special union for connecting two lengths of tubing 1.6 mm inside diameter and smaller.
Also referred to as a zero dead-volume union.
3.6 Split ratio
In gas chromatography using capillary columns the ratio of the total flow of the carrier gas to the sample inlet versus the flow of carrier gas to the capillary column.
3.7 TCEP
1,2,3-tris-2-cyanoethoxypropane. A gas chromatographic liquid phase.
3.8 WCOT
Abbreviation for “wall-coated open-tubular column”, a type of capillary column, wall-coated open tubular, used in gas chromatography. This type of column is prepared by coating the inside of the capillary with a thin film of stationary phase.
4 Requirements and test method
The technical requirement and test method of methanol gasoline (M85) for motor vehicles are detailed in Table 1.
Table 1: technical requirement and test method of Methanol Gasoline (M85) for Motor Vehicles
Item Quality index Test method
Appearance Jacinth transparent liquid, visible free of laminationm suspended and precipitated mechanical impurities Visual measurement a
Methanol + higher alcohols (C2~C8)(Volume fraction)/% 84~86 Annex A (determination of methanol), SH/T 0663 (determination of higher alcohols)
Hydrocarbon + aliphatic ether b(Volume fraction)/% 14~16 Annex B
Vapor pressure/kPa
From November 1 to April 30 ≤
From May 1 to October 31 ≤
78
68 SH/T 0794
Lead contentc/(mg/L) ≤ 2.5 GB/T 8020, ASTM D5059
Sulfur contentd/(mg/kg) ≤ 80 GB/T 11140, SH/T 0253, SH/T 0689
Higher alcohols(C2~C8) (Volume fraction)/% ≤ 2 SH/T 0663
Acidity (based on acetic acid)/(mg/kg) ≤ 50 ASTM D1613
Existent gum/(mg/100 mL) ≤ 5 GB/T 8019
Unwashed gum/(mg/100 mL) ≤ 20 GB/T 8019
Organochlorine content/(mg/kg) ≤ 2 GB/T 18612
Inorganic chlorine content(Cl-1)e/(mg/kg) ≤ 1 Annex C, ASTM D512 (Method C)
Sodium content(mg/kg) ≤ 2 GB/T 17476
Water content f(Massfraction)/% ≤ 0.5 ASTM E203, GB/T 6283
Manganese contentS/(mg/L) ≤ 2.9 SH/T 0711
Note: effective metallic corrosion depressor and motor gasoline detergent meeting the requirements of GB 19592 shall be added.
Additive containing iron, lead and phosphorus, and halide additives that do harm to the vehicle reliability and after-treatment system must not be added artificially.
a The sample is injected into a 100 mL glass measuring cylinder for observation, and it shall be jacinth transparent liquid free of laminationm suspended and precipitated mechanical impurities. In the case of disagreement, the test result gained in accordance with GB/T 511 shall prevail. The color jacinth is formed by adding Sudan Red IV. The addition of Sudan Red IV should be 8 mg/kg ~ 10 mg/kg, and the index number hereof is C.I.Solvent Red 24 (26105). Except this, the dye of other kinds must not be added artificially.
b "Hydrocarbon + aliphatic ether" is gasoline for motor vehicles meeting the requirements of GB 17930. The content of "hydrocarbon + aliphatic ether" may be gained by the method "deducting the total content of methanol, water and other ethanol from 100". In the case of disagreement, the test result gained in accordance with Annex B shall prevail.
c In the case of disagreement, the test result gained in accordance with GB/T 8020 shall prevail. When adopting the test method specified in ASTM D5059, methanol (analytical reagent) is adopted as solvent to prepare reference solution to prevent error due to large difference of carbon hydrogen ratio.
d In the case of disagreement, the test result gained in accordance with SH/T 0689 shall prevail. When adopting the test method specified in GB/T 11140, methanol (analytical reagent) is adopted as solvent to prepare reference solution to prevent error due to large difference of carbon hydrogen ratio.
e In the case of disagreement, the test result gained by the method in Annex C shall prevail.
f In the case of disagreement, the test result gained by the method in ASTM E203 shall prevail.
g The manganese content is referred to the total content of manganese existing in Methyl-cyclopentadienyl-Manganese-Tricarbony (MMT). Manganese-containing additive of other kinds must not be added artificially into gasoline.
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
4 Requirements and test method
5 Test Rules
6 Marking, packaging, transportation and storage
7 Safety
Annex A (Normative)
Annex B (Normative)
Annex C (Normative)
Annex D (Informative)
Bibliography
