This standard is published for the first time. The standard specifies the method for determining the equilibrium boiling point of engine coolants. It does not involve all safety issues related to use. GB/T 22226-2008 Determination of boiling point of engine coolants GB/T22226-2008 Standard download decompression password: www.bzxz.net
This standard is published for the first time. The standard specifies the method for determining the equilibrium boiling point of engine coolants. It does not involve all safety issues related to use.
This standard is equivalent to ASTM D1120:1994 (2004) "Determination of boiling point of engine coolants" (English version).
For ease of use, the following editorial changes have been made to ASTM D1120:1994 (2004):
a) Delete the "." after the chapter title number in the original standard;
b) Use punctuation marks. to replace the period represented by "." in the original standard.
This standard is proposed and managed by the National Technical Committee for Standardization of Hazardous Chemicals Management (SAC/TC251). The
drafting units of this standard are: Sinochem Chemical Standardization Research Institute, China National Chemical Corporation Bluestar Company, Guangdong Import and Export Inspection and Quarantine Bureau, and Sinopec Sales Co., Ltd. North China Research Institute. The
drafters of this standard are: Wang Xiaobing, Wang Shuangtian, Mei Jian, Li Defu, Chen Qiang, Bai Jianli, Zhang Junxi, Liu Jianbin, Zhou Wei, and Dong Fang.
This standard is published for the first time.
The clauses in the following documents become the clauses of this standard through reference in this standard. For any dated referenced document, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties to the agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For any undated referenced document, the latest version shall apply to this standard.
ASTM D1176 Test Method for Sampling and Preparation of Aqueous Engine Coolants or Rust Preventives for Testing
ASTM E1 Specification for Liquid-in-Glass Thermometers

ICS13.300
National Standard of the People's Republic of China
GB/T222262008
Standard tesl method for hoiling point of engine coolants2008-06-19 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration of China
2009-02-01 Implementation
GB/T22226—2008
This standard is equivalent to ASTMD1120:1994(200) Determination of boiling point of engine coolants (English version). For ease of use, the following editorial amendments have been made to ASTMD1120:1991(2004): a) The "\" after the chapter title number in the original standard has been deleted; b) The punctuation mark " is used. " replaces the period indicated by "" in the original standard. This standard was proposed and approved by the National Technical Committee for Standardization of Dangerous Chemicals (SAC/TC251). Drafting units of this standard: Sinochem Chemical Standardization and Certification Research Institute, China National Chemical Corporation Bluestar Company, Guangdong Import and Export Inspection and Quarantine Bureau, North China Research Institute of Sinochem Sales Co., Ltd. Drafters of this standard: Wang Xiaobing, Wang Shuangtian, Mei Jian, Li Defu, Chen Qiang, Bai Jianli, Zhang Junjia, Liu Jianbin, Zhou Wei, Dao Fang. This standard is published for the first time.
1 Scope
Engine coolant boiling point determination method,
GB/T 22226—2008
This standard specifies the method for determining the equilibrium boiling point of engine coolant. The equilibrium boiling point refers to the temperature at which the sample reaches boiling and gas-liquid equilibrium in a cooling device under standard atmospheric pressure. Note 1: The standard is applicable to the determination of the boiling point of diluted or reduced engine or engine coolants. Note 2: The standard and preparation method for engine coolant samples containing anti-corrosion additives can be found in ASTM T>117°C. This standard recommends the use of the international system of units for reference. This standard does not cover all safety issues related to its use. Users of this standard are responsible for making appropriate safety and health precautions and determining the limitations before use. Scope of application. 2 Normative references
The clauses in the following documents become clauses of this standard through reference in this standard. For dated references, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties to an agreement based on this standard are encouraged to investigate whether the latest version of this document can be used. For any undated reference, the latest version applies to this standard. ASTMD-7S Determination of the sample and preparation of engine coolant or rust preventive aqueous solution for testing ASTME1 Specification for glass liquid hydrometer
3 Summary of the method
Take 60 mL sample is placed in a 100 mL flask. Heat to boiling under normal pressure. When the gas barrier equilibrium is reached, read the sample temperature. After correction by the gas pressure difference, it is the boiling point of the sample: 4 Instruments (see Figure 1)
4.1 Flask
2001nL round bottom, short neck bottleneck is a heat-resistant glass flask with a 19/38 standard taper internal frosted interface: There is an arm with an outer diameter of 10mm (0.4 in). After inserting the thermometer, the thermometer mercury ball is 6.5 Imr (0.26 in) away from the center of the bottom of the flask. Flask See Figure 2.4.2 Condenser Www.bzxZ.net
Glass tube shape, with a length of 200 IIm (7.9in) condensation jacket, condensation and reflux with cooling water, the end of the condensation bottom has a 19/38 standard taper external frosted interface.
4.3 Zeolite
3 or 4 sputtered silicon particles, No. 8 coarse silicon or other suitable inert fragments can be used for detection. In order to prevent the sample from boiling violently, the amount of zeolite can be increased
4.4: Thermometer
Select a local unmanned thermometer that meets the requirements of ASTME1 standard, and the measurement humidity range is -5℃~+30℃℃ (20'F~580F), which meets the requirements of 2 C or 2 F thermometer specified in ASTM F 1 glass liquid thermometer specification 4.5 Heating device
Select a suitable electric heating jacket, the heating intensity must meet the heating speed and reflux speed required in 7.1: 1
GB/T 22226—2008
Egg water:
Condenser:
Thermometer:
Zeolite;
Heating cover;
Escape port,
Instrument configuration
Unit: millimeter
5 Sample
Outer±60±
Figure 2 Flask
Inner*8--g
GB/I22226—2008
Unit: millimeter
5.1 Preparation of unused concentrated cooling wave samples for boiling point detection. It is recommended to follow the following steps. 5.1.1 Allow the sample taken out from the original container to cool to room temperature 20℃ (68F) but not lower than 20℃] 5.1.2 Probe container (to allow the stratified substances to mix evenly. 5.1.3 Immediately measure the required sample for the test
5. Preparation for dilution and solution - Use a pipette to measure the required volume of the mixed sample into a calibrated volumetric flask, add distilled water to make the volume of the mixture in the flask reach the scale line, and keep the room temperature (20℃) unchanged. 5.3 The sampling and preparation method of engine coolant containing anti-condensation additives shall refer to ASTMD176. 6 Preparation of instrumentation
Use a calibrated thermometer
6.2 Insert the calibrated thermometer into the side opening of the flask. The insertion depth is based on the distance of the mercury ball from the center of the bottom of the flask to 6.5mm. The thermometer and the side of the flask are sealed with a small section of rubber tube or other suitable materials to prevent air from entering. 6.3 Take 6 mL of the sample to be tested and pour it into the flask. At the same time, put three grains of boiling water. 6.4 Insert the clean and dry condenser tube into the flask and place them on a suitable electric heating set. The upper part of the condenser tube is clamped and fixed on the iron bracket. Connect latex tubes to the inlet and outlet of the condenser tube respectively, and fill the condenser tube interlayer with water. 7 Steps
7.1 After all preparations are completed, turn on the cooling water and start reverse heating. Adjust the heating speed so that the sample reaches boiling within 155 in. After boiling, slowly reduce the heating intensity so that the flow rate reaches 1 drop to 2 drops per displacement within 1 Umin. Carefully observe the flow rate. After maintaining the specified reflux rate for 2 min, read the temperature value shown on the thermometer. 7.? Record the observed temperature value and the atmospheric pressure during the test. 3
GB/T 22226—2008
8 Calculation
8.1 Correction of thermometer readings: Correct the thermometer readings according to the correction values ​​during calibration in 6.1. 8.2 Correction of atmospheric pressure difference: After correcting the temperature readings, perform atmospheric pressure difference correction on the observed temperature values, and use Table 1 to determine the atmospheric pressure difference correction coefficient. Table 1 Atmospheric pressure difference correction coefficient table"
Temperature positive coefficient of the difference between the marked atmospheric pressure and the actual atmospheric pressure Corrected hygrometer observed temperature
100℃(212F)
100(212'F).~190'C(374'F)
90C(374F)
\C /kPacr /kPs)
Temperature is expressed in °C
Note: The technical content in this table is completely consistent with the technical content of the original standard ASTM1120:1S91(222) "Engine coolant boiling point determination method", only the metric conversion is performed.
"This table is an approximate value based on the following equation: c— 0,000 712 6(101.3 - p)(273 —1) Where:
Actual atmospheric pressure during the test: Unit is kPa (kP=): Corrected thermometer reading: Unit is Celsius (℃) If Fahrenheit temperature is used, this table is based on the following approximation: c:=C.COCC95(760+p)(165±t)
Where:
Atmospheric pressure difference correction coefficient under incompressible and humid conditions: Human body pressure during the test, unit is millimeter bar (rmr:Hg): Corrected thermometer reading, unit is Fahrenheit (F). The actual atmospheric pressure during the test is lower than o1.3kPa, and the boiling point is the corrected temperature value of the thermometer reading plus the atmospheric pressure and multiplied by the corresponding coefficient in the table; if the actual atmospheric pressure during the test is lower than 1C1.3 kPa,The boiling point of the sample is the corrected value obtained by subtracting the temperature value corrected by the atmospheric pressure difference from the thermometer reading and multiplying it by the rejection coefficient in Table 1. 9 Report
Report information: The observed temperature is corrected by the temperature reading and the atmospheric pressure difference, and is used as the average boiling point of the sample. The result is accurate to 0.3℃ (0.5F). 10 Precision
10.1 Reproducibility and Bias
10.1.1 Reproducibility of Dilution
When the boiling point of the sample is lower than 100℃ (212°F), the difference between the two results proposed by different laboratories shall not exceed 1.4℃ (2.5°F); when the boiling point of the sample is higher than 100℃ (212°F), the difference between the two results proposed by different laboratories shall not exceed 2.5℃ (4.5F) 10.1.2 Reproducibility of Concentrate
When the boiling point of the sample is lower than 100℃ (212°F), the difference between the two results proposed by different laboratories shall not exceed 1.4℃ (2.5F); when the boiling point of the sample is higher than 100℃ (212°F), the difference between the two results proposed by different laboratories shall not exceed 5.6℃ (10°F) 10.2 Bias
GB/T 22226—2008
This method has not collected appropriate data on the repeatability of the determination of boiling point of engine coolant. Because the comparison deviation is not specified,
11 Keywords
Boiling point, engine coolant.
GB/T 22226-2008
Chinese People's Republic of China
National Standard
Determination of boiling point of engine coolant
(GFls/T 22226—2008
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