Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This document is developed in accordance with the rules given in GB/T 1.1-2020 Directives for standardization — Part 1: Rules for the structure and drafting of standardizing documents.
This document replaces GB/T 23799-2009 Methanol gasoline (M85) for motor vehicles. In addition to structural adjustment and editorial changes, the following main technical changes have been made with respect to GB/T 23799-2009:
a) The regulations on dyes in footnote a of the appearance in Table 1 have been modified (see Table 1; Table 1 in 2009 edition);
b) The item of methanol + multi-carbon alcohols (C2 ~ C8) (volume fraction) has been modified to methanol (volume fraction) with an indicator of 82% ~ 86%, and the test method ASTM D7920 has been added (see Table 1; Table 1 in 2009 edition);
c) The item of hydrocarbon compounds + aliphatic ethers in the 2009 edition has been deleted (see Table 1 in the 2009 edition);
d) The vapor pressure from November 1 to April 30 has been modified from not more than 78 kPa to 45 kPa ~ 78 kPa, and that from May 1 to October 31 has been modified from not more than 68 kPa to 40 kPa ~ 65 kPa (see Table 1; Table 1 in 2009 edition);
e) The sulfur content has been modified from not more than 80 mg/kg to not more than 5 mg/kg; the detection method GB/T 34100 has been added; and the arbitration method has been modified to GB/T 34100 (see Table 1; Table 1 in 2009 edition);
f) The item of multi-carbon alcohols (C2 ~ C8) in the 2009 edition has been deleted (see Table 1 for the 2009 edition);
g) The test method for determination of inorganic chloride ASTM D7328 has been added (see Table 1);
h) The test method for determination of water ASTM D7923 has been added (see Table 1);
I) The manganese content has been modified from not more than 2.9 mg/L to not more than 2 mg/L (see Table 1; Table 1 in 2009 edition);
j) The item of corrosiveness to copper with index of no more than Grade 1 by test method GB/T 5096 has been added (see Table 1);
k) Annex B "Method for determination of hydrocarbon compounds and aliphatic ethers in methanol gasoline (M85) for motor vehicles" in the 2009 edition has been deleted;
l) Annex B "Method for determination of inorganic chloride in methanol gasoline (M85) for motor vehicles" hereof has been modified (see Annex B; Annex C in 2009 edition);
m) Annex D in 2009 edition has been deleted.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying any or all such patent rights.
This document was proposed by National Technical Committee on Petroleum Products and Lubricants of Standardization Administration of China (SAC/TC 280).
This document was firstly issued in 2009, and this edition is the first revision.
Methanol gasoline (M85) for motor vehicles
Warning — If proper preventive measures are not observed, the products covered by this document may be in danger during production, storage, transportation and use. This document is not intended to suggest all safety issues related to this product. Before using this document, users are responsible for establishing appropriate safety and preventive measures and determining the applicability of relevant regulations and restrictions.
1 Scope
This document specifies the requirements, test methods, inspection rules, marking, packaging, transportation, storage and safety of methanol gasoline (M85) for motor vehicles blended from 82% ~ 86% (volume fraction) of methanol, motor gasoline and additives for improving service performance.
This document is applicable to the fuel for vehicles equipped with ignition engine using methanol gasoline (M85).
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB 190 Packing symbol of dangerous goods
GB/T 511 Petroleum, petroleum products and additives — Method for determination of mechanical admixtures
GB/T 4756 Method for manual sampling of petroleum liquids
GB/T 5096 Test method for corrosiveness to copper from petroleum products by copper strip test
GB/T 6283 Chemical products — Determination of water Karl·Fischer method (general method)
GB/T 6682 Water for analytical laboratory use — Specification and test methods
GB/T 8019 Standard test method for gum content in fuels — By jet evaporation
GB/T 8020 Determination of lead in gasoline — Atomic absorption spectrometry
GB/T 9725 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 General rule for classification and hazard communication of chemicals
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/T 17519 Guidance on the compilation of safety data sheet for chemical products
GB 17930 Gasoline for motor vehicles
GB/T 18612 Determination of organic chloride content in crude oil
GB 19592 Detergent additive for motor gasoline
GB 30000.7 Rules for classification and labelling of chemicals — Part 7: Flammable liquids
GB/T 34100 Test method for determination of total sulfur in light hydrocarbons, spark ignition engine fuel, diesel engine fuel, and engine oil — Ultraviolet fluorescence method
NB/SH/T 0164 Petroleum and related products packaging, storage, transportation and acceptance of delivery rules
NB/SH/T 0711 Standard test method for manganese in gasoline by atomic absorption spectroscopy
SH/T 0253 Determination method for total sulfur content in light petroleum products (coulometric method)
SH/T 0689 Standard test method for determination of total sulfur in light hydrocarbons, motor fuels and oils by ultraviolet fluorescence
SH/T 0794 Standard test method for vapor pressure of petroleum products (mini method)
ASTM D512 Standard test methods for chloride ion in water
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 and manganese in gasoline by X-ray spectroscopy
ASTM D7328 Standard test method for determination of existent and potential inorganic sulfate and total inorganic chloride in fuel ethanol by ion chromatography using aqueous sample injection
ASTM D7920 Standard test method for determination of fuel methanol (M99) and methanol fuel blends (M10 to M99) by gas chromatography
ASTM D7923 Standard test method for water in ethanol and hydrocarbon blends by Karl·Fischer titration
ASTM E203 Standard test method for water using volumetric Karl·Fischer titration
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purpose of this document, the following terms and definitions apply.
3.1.1
methanol gasoline (M85) for motor vehicles
product made of methanol, motor gasoline conforming to GB 17930 and additives improving the service performance
Note: The amount of methanol added is 82% ~ 86% (volume fraction)
3.1.2
low-volume connector
special device connecting two pipelines with inner diameters of 1.6 mm and smaller
Note: It also known as zero dead volume connecting device.
3.1.3
split ratio
ratio of the total flow rate of carrier gas at the sample injection port to the flow rate of carrier gas entering the capillary column, in a capillary gas chromatography apparatus
3.2 Abbreviations
For the purposes of this document, the following abbreviations apply.
TCEP 1,2,3-tris-2-cyanoethoxypropane
WCOT wall-coated open tubular
4 Requirements and test methods
4.1 The technical requirements and test methods for methanol gasoline (M85) for motor vehicles shall comply with those specified in Table 1.
4.2 Motor gasoline used for blending methanol gasoline (M85) for motor vehicles shall comply with GB 17930.
4.3 Additives used in methanol gasoline (M85) for motor vehicles shall be used without recognized harmful effects and according to the recommended appropriate dosage. The methanol gasoline (M85) for motor vehicles shall not contain any additives and pollutants that may cause vehicles to fail to run normally. Dimethoxymethane, aniline, halogens and compounds containing phosphorus, iron and silicon shall not be artificially added to methanol gasoline (M85) for motor vehicles.
Table 1 Technical requirements and test methods for methanol gasoline (M85) for motor vehicles
Item Unit Quality indicator Test method
Appearance a — Orange-red transparent liquid, non-layered, free of suspended and settled mechanical impurities Visual inspection
Methanol b (volume fraction) % 82 ~ 86 Annex A
Vapor pressure c
November 1 to April 30
May 1 to October 31 kPa 45 ~ 78
40 ~ 65 d SH/T 0794
Lead content e g/L ≤ 0.0025 GB/T 8020
Sulfur content f mg/kg ≤ 5 GB/T 34100
Acidity (calculated according to that of acetic acid) mg/kg ≤ 50 ASTM D1613
Solvent washed gum mg/100 ml ≤ 5 GB/T 8019
Unwashed gum mg/100 ml ≤ 20 GB/T 8019
Content of organic chloride mg/kg ≤ 2 GB/T 18612
Content of inorganic chloride g (calculated based on Cl–) mg/kg ≤ 1 Annex B
Sodium content mg/kg ≤ 2 GB/T 17476
Water h (mass fraction) % ≤ 0.5 ASTM E203
Manganese content i mg/L ≤ 2 NB/SH/T 0711
Corrosiveness to copper (50°C, 3 h) Grade ≤ 1 GB/T 5096
Effective metal corrosion inhibitors and motor gasoline detergent additive conforming to GB 19592 shall be added.
a The sample injected into a 100 mL glass measuring cylinder shall be orange-red transparent liquid without suspended and settled mechanical impurities. In case of any dispute, the determination results by GB/T 511 method shall prevail; The orange-red color is the result of adding dye to methanol gasoline (M85) for motor vehicles. 8 mg/kg ~ 10 mg/kg of solvent red (alias Sudan IV) with index No. of C.I. SolventRed 24 (26105), if selected as dye, shall be added. Other suitable dyes are also applicable.
b The method in ASTM D7920 may also be adopted. In case of any dispute, the determination result by the method of Annex A shall prevail.
c Before new coming season, the gas station is allowed to have a replacement period of 15 days.
d Guangdong and Hainan provinces and Guangxi Zhuang Autonomous Region shall implement this requirement throughout the year.
e The method in ASTM D5059 may also be adopted. In case of any dispute, the determination result by the method in GB/T 8020 shall prevail. In the case of the test method in ASTM D5059, methanol (analytical pure reagent) is required to be used as solvent to prepare calibration solution, so as to prevent errors caused by significant difference in hydrocarbon ratio. Additives containing lead shall not be artificially added to methanol gasoline (M85) for motor vehicles.
f The methods in SH/T 0689, GB/T 11140 and SH/T 0253 may also be adopted. In case of any dispute, the method in GB/T 34100 shall prevail.
g The methods in ASTM D7328 and ASTM D512 (Method C) may also be adopted. In case of any dispute, the determination result by the method of Annex B shall prevail.
h The methods in GB/T 6283, ASTM D7923 may also be adopted. In case of any dispute, the determination result by the method in ASTM E203 shall prevail.
i Additives containing manganese shall not be artificially added to methanol gasoline (M85) for motor vehicles.
5 Inspection rules
5.1 Inspection and items
The inspection of methanol gasoline (M85) for motor vehicles is the end-of-manufacturing inspection covering all items specified in Table 1.
5.2 Batching rules
Under the condition that raw material and process keep unchanged, the products of a tank (or kettle) form a batch.
5.3 Sampling
5.3.1 Sampling is carried out according to GB/T 4756, and 2 L of sample shall be taken for inspection and sample retention.
5.3.2 Brown glass containers shall be used for sampling. A metal container, if used, shall not be welded. Because the solder will corrode and dissolve into methanol fuel, causing polluted sample. Plastic containers is not allowed.
Foreword i
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
4 Requirements and test methods
5 Inspection rules
6 Marking, packaging, transportation and storage
7 Safety
Annex A (Normative) Determination of methanol content in methanol gasoline (M85) for motor vehicles
Annex B (Normative) Method for determination of inorganic chlorine content in methanol gasoline (M85) for motor vehicles
Bibliography
車用甲醇汽油(M85)
警示——如果不遵守適當的防范措施,本文件所屬產品在生產,儲運和使用等過程中可能存在危險。本文件無意對與本產品有關的所有安全問題提出建議。用戶在使用本文件之前,有責任建立適當的安全和健康措施,并確定相關規章限制的適用性。
1 范圍
本文件規定了由82%~86%(體積分數)的甲醇、車用汽油以及改善使用性能的添加劑調合而成的車用甲醇汽油(M85)的要求和試驗方法,檢驗規則,標志,包裝、運輸和儲存及安全。
本文件適用于車用甲醇汽油(M85)點燃式發動機汽車使用的燃料。
2 規范性引用文件
下列文件中的內容通過文中的規范性引用而構成本文件必不可少的條款。其中,注日期的引用文件,僅該日期對應的版本適用于本文件;不注日期的引用文件,其最新版本(包括所有的修改單)適用于本文件。
GB 190 危險貨物包裝標志
GB/T 511 石油和石油產品及添加劑機械雜質測定法
GB/T 4756 石油液體手工取樣法
GB/T 5096 石油產品銅片腐蝕試驗法
GB/T 6283 化工產品中水分含量的測定 卡爾·費休法(通用方法)
GB/T 6682 分析試驗室用水規格和試驗方法
GB/T 8019 燃料膠質含量的測定 噴射蒸發法
GB/T 8020 汽油中鉛含量的測定 原子吸收光譜法
GB/T 9725 化學試劑 電位滴定法通則
GB/T 11140 石油產品硫含量的測定 波長色散X射線熒光光譜法
GB 12268 危險貨物品名表
GB 13690 化學品分類和危險性公示 通則
GB/T 17476 使用過的潤滑油中添加劑元素、磨損金屬和污染物以及基礎油中某些元素測定法(電感耦合等離子體發射光譜法)
GB/T 17519 化學品安全技術說明書編寫指南
GB 17930 車用汽油
GB/T 18612 原油有機氯含量的測定
GB 19592 車用汽油清凈劑
GB 30000.7 化學品分類和標簽規范 第7部分:易燃液體
GB/T 34100 輕質經及發動機燃料和其他油品中總硫含量的測定 紫外熒光法
NB/SH/T 0164 石油及相關產品包裝、儲運及交貨驗收規則
NB/SH/T 0711 汽油中錳含量的測定 原子吸收光譜法
SH/T 0253 輕質石油產品中總硫含量測定法(電量法)
SH/T 0689 輕質烴及發動機燃料和其他油品的總硫含量測定法(紫外熒光法)
SH/T 0794 石油產品蒸氣壓的測定 微量法
ASTM D512 水中氯離子含量的試驗方法(Standard test methods for chloride ion in water)
ASTM D1613 色漆、清漆、噴漆和有關產品中揮發性溶劑及化學中間體酸度的試驗方法(Standard test method for acidity in volatile solvents and chemical intermediates used in paint,var-nish,lacquer,and related products)
ASTM D4626 氣相色譜響應因子計算規程(Standard practice for calculation of gas chromato-graphic response factors)
ASTM D5059 用X射線光譜學測定汽油中鉛的試驗方法(Standard test methods for lead and manganese in gasoline by x-ray spectroscopy)
ASTM D7328 通過使用含水試樣注入的離子色譜分析法測定燃料乙醇中現存潛在無機硫酸鹽和總無機氯化物的試驗方法(Standard test method for determination of existent and potential inorganic sulfate and total inorganic chloride in fuel ethanol by ion chromatography using aqueous sample injec-tion)
ASTM D7920 用氣相色譜法測定燃料甲醇(M99)和甲醇燃料混合物(M10至M99)的試驗方法(Standard test method for determination of fuel methanol (M99) and methanol fuel blends (M10 toM99) by gas chromatography)
ASTM D7923 用卡爾·費歇爾滴定法測定乙醇和經類混合物中水分的試驗方法(Standard test method for water in ethanol and hydrocarbon blends by Karl Fischer titration)
ASTM E203 用卡爾·費休滴定法測定水分的試驗方法(Standard test method for water using volumetric Karl Fischer titration)
3 術語和定義、縮略語
3.1 術語和定義
下列術語和定義適用于本文件。
3.1.1
車用甲醇汽油(M85) methanol gasoline (M85) for motor vehicles
由甲醇、符合GB 17930要求的車用汽油以及改善使用性能的添加劑調合而成的產品。 注:甲醇加入量為82%~86%(體積分數)。
3.1.2
小死體積連接器 low-volume connector
連接兩個內徑 1.6 mm和更細管線的特殊器件。
注:也稱為零死體積連接器件。
3.1.3
分流比 split ratio
在毛細管氣相色譜儀中,樣品進樣口載氣的總流量與進入毛細管柱的載氣流量之比。
3.2 縮略語
下列縮略語適用于本文件。
TCEP 1,2,3-三-(2-氰基乙氧基)丙烷(1,2,3-tris-2-cyanoethoxypropane)
WCOT 內壁涂層的毛細管柱(wall-coated open tubular)
4 要求和試驗方法
4.1 車用甲醇汽油(M85)的技術要求和試驗方法應符合表1的要求。
4.2 用于調合車用甲醇汽油(M85)的車用汽油應符合GB 17930。
4.3 車用甲醇汽油(M85)中所使用的添加劑應無公認的有害作用,并按推薦的適宜用量使用。車用甲醇汽油(M85)中不應含有任何可導致車輛無法正常運行的添加劑和污染物。車用甲醇汽油(M85)中不得人為加入甲縮醛﹑苯胺類、鹵素以及含磷、含鐵、含硅等化合物。
表1 車用甲醇汽油(M85)的技術要求和試驗方法
項目 單位 質量指標 試驗方法
外觀a — 橘紅色透明液體,不分層,不含懸浮和沉降的機械雜質 目測
甲醇b(體積分數) % 82~86 附錄A
蒸氣壓c
11月1日至4月30日
5月1日至10月31日 kPa 45~78
40~65d SH/T 0794
鉛含量e g/L ≤0.0025 GB/T 8020
硫含量f mg/kg ≤5 GB/T 34100
酸度(按乙酸計算) mg/kg ≤50 ASTM D1613
溶劑洗膠質 mg/100 ml ≤5 GB/T 8019
未洗膠質 mg/100 ml ≤20 GB/T 8019
有機氯含量 mg/kg ≤2 GB/T 18612
無機氯含量g(以Cl-計) mg/kg ≤1 附錄B
鈉含量 mg/kg ≤2 GB/T 17476
水分h(質量分數) % ≤0.5 ASTM E203
錳含量i mg/L ≤2 NB/SH/T 0711
銅片腐蝕(50℃,3 h) 級 ≤1 GB/T 5096
應加入有效的金屬腐蝕抑制劑和有效的符合GB 19592的車用汽油清凈劑。
a 將試樣注入100 mL玻璃量筒中觀察,應當為橘紅色透明液體,沒有懸浮和沉降的機械雜質,在有異議時,以GB/T 511方法測定結果為準;橘紅色是由于在車用甲醇汽油(M85)中加入了染料后形成的顏色;染料可選用燭紅(別名蘇丹四),如選用燭紅時,添加量應為8 mg/kg~10 mg/kg,燭紅燃料索引號為C. I. SolventRed 24(26105),也可選用其他適宜染料。
b 也可采用ASTM D7920進行測定,在有異議時,以附錄A方法測定結果為準。
c 換季時,加油站允許有15天的置換期。
d 廣東、廣西、海南全年執行此項要求。
e 也可采用ASTM D5059進行測定,在有異議時,以 GB/T 8020方法測定結果為準。采用試驗方法ASTM D5059時,需用甲醇(分析純試劑)作為溶劑來制備校準溶液,以防止碳氫比較大的差異而引起誤差。車用甲醇汽油(M85)中,不應人為加入含鉛的添加劑。
f 也可采用SH/T 0689,GB/T 11140,SH/T 0253進行測定﹐在有異議時,以GB/T 34100方法方準。
g 也可采用ASTM D7328、ASTM D512(方法C)進行測定,在有異議時,以附錄B方法測定結果為準。
h 也可采用GB/T 6283,ASTM D7923進行測定,在有異議時,以ASTM E203方法測定結果為準。
i 車用甲醇汽油(M85)中,不應人為加入含錳的添加劑。
5 檢驗規則
5.1 檢驗與檢驗項目
車用甲醇汽油(M85)產品的檢驗為出廠檢驗,出廠檢驗項目為表1規定的所有項目。
5.2 組批規則
在原材料、工藝不變的條件下,產品每生產一罐(或釜)為一批。
5.3 取樣
5.3.1 取樣按GB/T 4756進行,取2 L樣品作為檢驗和留樣用。
5.3.2 取樣應采用棕色玻璃容器。如果采用金屬容器,該容器不應該有焊接。因為焊料會腐蝕溶解到甲醇燃料中,導致樣品被污染。不應使用塑料容器。
5.4 判定規則
出廠檢驗結果符合表1規定時,則判定該批產品合格。
5.5 復驗規則
如出廠檢驗結果中有不符合表1技術要求的規定時,按GB/T 4756的規定重新抽取雙倍樣品進行復驗,復驗結果如仍有不符合表1技術要求的項目時,則判定該批產品為不合格。
6 標志、包裝、運輸和儲存
6.1 車用甲醇汽油(M85)為易燃液體和有毒品,具有刺激性,其標志、包裝、運輸和儲存及交貨驗收按NB/SH/T 0164、GB 12268,GB 13690,GB 30000.7和GB 190進行。
6.2 凡向用戶銷售的符合本文件的車用甲醇汽油(M85)所使用的加油機泵和容器上應標志“車用甲醇汽油(M85)”,并應根據GB 12268,GB 13690,GB 30000.7及GB 190標明易燃液體和有毒品標志,上述標志應標識在汽車駕駛員易看見的地方。
6.3 符合本文件的車用甲醇汽油(M85)在運輸、儲存過程中應使用專用的管道、容器和機泵。這些貯罐、泵、管線、計量器的密封件和材質應適應車用甲醇汽油(M85)的要求。在儲存運輸過程中,要保證整個系統干凈和不含水,同時應嚴防外界水的吸入,對成品貯罐須安裝帶有干燥劑的呼吸閥。如果發生相分離,應進行專門處理。
6.4 在車用甲醇汽油(M85)的分配和計量系統中應避免使用未經防護的鋁材料和沒有襯里的丁腈橡膠分配軟管。
注:車用甲醇汽油(M85)的分配和計量設備中使用未經保護的鋁器件,會導致不溶性鋁化合物進入燃料并造成汽車燃油濾網堵塞。而且,即使采用保護性鋁器件,也會由于燃料與丁腈橡膠分配軟管接觸而增加了燃料的電導率,使這種腐蝕效應加劇。
7 安全
7.1 車用甲醇汽油(M85)的運輸、儲存﹑使用和事故處理等環節涉及安全方面的數據和信息,應包括在產品的“化學品安全技術說明書”中。生產商或供應商應提供根據GB/T 17519編寫的其產品“化學品安全技術說明書”。
7.2 車用甲醇汽油(M85)中的甲醇蒸氣對神經系統有刺激作用,吸入人體內,可引起失明和中毒。因此裝卸與加油時,盡量減少車用甲醇汽油(M85)蒸氣的揮發。口腔、眼睛、皮膚不應接觸本品,避免吸入車用甲醇汽油(M85)蒸氣。配制、裝卸、加油人員應做相應防護措施,避免過量吸入有害蒸氣。
7.3 車用甲醇汽油(M85)一旦濺到皮膚和眼睛里,應迅速用大量的清水沖洗,急速醫療。
7.4 不應用嘴吸車用甲醇汽油(M85),不應用車用甲醇汽油(M85)洗手、擦洗衣服、機件、灌注打火機和作噴燈燃料。
7.5 車用甲醇汽油(M85)著火時應用沙子、氟蛋白抗溶泡沫滅火劑、石棉布等滅火材料進行撲救。車用甲醇汽油(M85)溢出時,應進行專門處理。