Some standard content:
GB16663-1996
According to the 44th item "Synthetic Liquid Fuel" of the Technical Supervision Bureau Standard Letter (1994) No. 020 issued by the State Bureau of Technical Supervision, "Notice on Sending the "1994 National Standard Project Plan", the Sichuan Provincial Energy Standardization Technical Committee and the New Liquid Fuel and Gas Appliance Professional Committee of the China Energy Research Society jointly organized experts to draft this standard. This standard is formulated based on the Sichuan Provincial Local Standard DB51/181--93 "Synthetic Liquid Fuel"; and collected data from dozens of "alcohol-based liquid fuel" production and distribution units inside and outside the province; repeatedly verified the test methods used; and conducted a full performance test on the fuel of 20 production and distribution units in Sichuan Province. This national standard should be used in conjunction with the industry standard "Alcohol-based Liquid Fuel Household Stoves". This standard is proposed and managed by the State Bureau of Technical Supervision. Drafting units of this standard: Sichuan Provincial Energy Standardization Technical Committee, New Liquid Fuel and Gas Appliance Professional Committee of the China Energy Research Society, Chengdu Lianmin Kitchenware Factory.
The main drafters of this standard are Zou Weiruo, Yang Tianyu, Zhao Youhang, Xie Zhongyu, Wang Zhengfu, Zhang Ronglin and Chen Zhenghua. 256
National Standard of the People's Republic of China
Alcohol base liquid fuel
Alcohol base liquid fuel
This standard specifies the requirements, test methods, sampling, marking, labeling and packaging of alcohol base liquid fuel. This standard applies to alcohol base liquid fuel (hereinafter referred to as fuel) prepared with alcohol as the main component. 2
Cited Standards
GB 16663--1996
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB338--92 Industrial methanol
GB/T384—81 Determination of calorific value of petroleum products GB/T510--83 Determination of condensation point of petroleum products GB/T511—88 Determination of mechanical impurities in petroleum products and additives (gravimetric method) GB/T611-88 General method for determination of density by chemical reagents GB/T 5332-85bZxz.net
Test method for ignition temperature of flammable liquids and gases GB/T6986—86 Determination of turbidity point of petroleum
GB/T 9722—-88
GB/T 11131—89
3 Requirements
Chemical reagents General rules for gas chromatography
Determination of total sulfur content of petroleum products Lamp method
The fuel is a uniform transparent liquid without odor. 3.1
The properties of the fuel shall meet the requirements of Table 1:
Alcohol content, %
Density (20℃), g/cm2
Mechanical impurities, %
Pouring point℃
Ignition temperature,℃
50% distillation temperature,℃
Approved by the State Administration of Technical Supervision on December 19, 1996
July 1, 1997 Implementation
Total sulfur content, %
Lower heating value, kJ/kg
Stability (-20℃)
Formaldehyde test
3:3 The following behaviors are not allowed in the fuel formula: GB16663-1996
End of Table 1)
The aromatic hydrocarbon content in the added hydrocarbon is <40%;
Add any inorganic salt, halogenated hydrocarbon and nitro compound. 4 Test method
4.1 Appearance: Visual inspection.
No stratification
Magenta is not blue
4.2 Alcohol content (simple method): Take 50mL of fuel in a 100mL measuring tube, add distilled water to 100mL, stir and stand for 10min, and observe that the volume of the stratified oil layer should be less than 15mL. 4.3 Density: Test according to GB/T611.
4.4 Mechanical impurities: Tested according to GB/T511. 4.5 Condensation point: Tested according to GB/T510.
4.5.1 Reagents and materials
Coolant: Industrial ethanol and dry ice
Reagent: Anhydrous ethanol.
4.5.2 Test steps
Inject industrial ethanol to 2/3 depth in the ice bath, gradually add dry ice and stir carefully to prevent ethanol from splashing out, adjust the temperature of the coolant to 7~8℃ below the condensation point -30℃ specified in the sample standard, generally controlled at -35±3℃. Inject 10mL of sample into a dry and clean 30mL test tube, fix the thermometer in the center of the test tube with a cork, so that the mercury ball is 8~~10mm away from the bottom of the tube, and then install the test tube in the sleeve with a cork, so that the outer wall of the test tube is equal to the distance around the inner wall of the sleeve, and inject several milliliters of anhydrous ethanol into the bottom of the sleeve. The assembled instrument is fixed vertically on the bracket and placed at room temperature. Then the instrument is immersed in the coolant, and the sample part should be completely immersed in the coolant. When the sample temperature cools to -30℃, the instrument immersed in the coolant is tilted to 45°. Keep the tilted state for 5 minutes, carefully remove the instrument from the coolant, quickly wipe the outer wall of the sleeve with industrial ethanol, place the instrument vertically, and observe through the sleeve to see if there is any sign of movement of the liquid surface in the test tube. If the position of the liquid surface can move at this time, the freezing point of the sample is <-30℃. The results of two parallel tests should be consistent.
4.6 Ignition temperature
4.6.1 Test device and instrument calibration, refer to the provisions of 4.1 and 4.2 in GB/T5332. 4.6.2 Test steps:
Adjust the temperature of the heating furnace so that the flask reaches 200℃ and ensure that its temperature is uniform. The test should be carried out under atmospheric pressure in the air. Use the sample to wash the clean syringe repeatedly, suck 10mL of the sample, and inject the sample vertically into the bottom center of the test bottle as quickly as possible at a uniform speed, then immediately withdraw the syringe. The entire operation should be completed within 2 seconds. Avoid wetting the bottle wall when injecting. Observe in a dark room whether there is spontaneous combustion or a clearly visible flame and explosive chemical reaction in the test flask. If the above phenomenon does not occur, stop the test after 5 minutes, take out the test flask, and there should be a liquid sample in the bottle. It is determined that the ignition temperature of the sample is higher than 200℃. Carry out two parallel tests, and the ignition temperature is higher than 200℃. This test item is judged to be qualified. 4.7 pH value: Compare with the standard color plate using a broad-spectrum pH test paper. 4.850% distillation temperature: Take a 250mL distillation branch flask, inject 100mL sample, connect the thermometer and straight 258
GB166631996
condenser and tail pipe according to the general distillation method, and place a measuring tube behind the tail pipe. The speed of cold water passing through the condenser should be fast, and the flask should be heated in a water bath or electric heating jacket. To prevent violent boiling, a small amount of broken porcelain chips or capillaries can be added, and distillation can be carried out slowly. When the distillate reaches 50mL, record the distillation temperature. 4.9 Total sulfur content: Test according to 6.1 direct combustion method in GB/T11131. 4.10 Lower calorific value: Test according to Chapter 1 oxygen bomb method in GB/T384. 4.11 Stability: Test according to GB/T6986. 4.12 Formaldehyde test: Use a 10mL pipette to draw 10mL of the sample, transfer it into a 30mL test tube, add 1mL of fuchsin-sulfurous acid solution, let it stand for 10min, then add 2mL of 2:1 sulfuric acid solution, the solution turns blue-purple and does not fade, that is, the sample is colored and contains formaldehyde. Fuchsin-sulfurous acid solution: Weigh 0.1g of basic fuchsin, dissolve it in 60mL of 80℃ hot distilled water, cool it, add 10mL of 10% sodium sulfite solution (1g of sodium sulfite is dissolved in 10mL of water), add 1mL of concentrated hydrochloric acid, stir it thoroughly, and the solution is slightly red. Add water to 100mL, store it in a brown bottle for more than 2h, and it can be used after it becomes colorless. If the solution is still red, add a small amount of activated carbon, filter it immediately after stirring, store it in a brown bottle, and store it in a dark place. If the solution turns red, it should be discarded and re-prepared. The results of two parallel tests should be consistent.
5 Sampling
5.1 The inspection department of the production plant shall conduct factory inspection on the fuel according to the nine test methods of 4.1~4.3, 4.5~4.6, 4.8, 4.10~4.12. After the test is qualified, the certificate of conformity shall be issued before leaving the factory. 5.2 A batch is made up of one batch of materials, and the sampling of each batch for inspection shall not be less than 2I. 5.3 Sampling method: large samples are taken from three different levels: upper, middle and lower; small cans or barrels can be shaken before taking. 5.4 If one indicator fails to meet the inspection, double the amount can be taken for re-inspection. 5.5 Routine inspection shall be carried out in any of the following situations: - When the raw materials, formula or process are changed
When new products are identified,
--- When the product is resumed after suspension; - Once a year during normal production,
When the national inspection agency needs to enforce the law.
5.6 Routine inspection sampling and result evaluation shall be in accordance with the provisions of 5.3 and 5.4. 6 Marking, labeling, packaging
6.1 The fuel is packaged in iron drums and can also be shipped in transport tank trucks. 6.2 The following labels and signs should be placed on the outside of the packaging drums: 1. Trademark;
Product name and product standard number;
2. Total mass:
3. Manufacturer name and address;
"No fireworks", "Do not invert" and other words or signs. 6.3 According to the transportation regulations for dangerous goods, fuel is not allowed to approach high temperatures and fire sources during transportation, and the transportation vehicles should have a safe fire protection design. 6.4 The storage area should have sufficient fire protection facilities and no fire sources are allowed. The top of the storage tank should be equipped with a vent pipe and a recovery device or flame arrester.
The shelf life is three months.
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