This standard is formulated for the first time. This standard specifies the test equipment and materials, test steps and result judgment of the ignition distance of sprays (aerosols). This standard applies to spray products with a spray distance of 15 cm or more. This standard corresponds to the United Nations "Manual of Tests and Criteria for Recommendations on the Transport of Dangerous Goods" (4th revised edition), and its consistency is not equivalent. Its relevant technical content is completely consistent with the above manual, and the standard text format has been edited according to GB/T1.1-2000. GB/T 21630-2008 Test method for ignition distance of dangerous goods sprays GB/T21630-2008 Standard download decompression password: www.bzxz.net
This standard is formulated for the first time. This standard specifies the test equipment and materials, test steps and result judgment of the ignition distance of sprays (aerosols). This standard applies to spray products with a spray distance of 15 cm or more. This standard corresponds to the United Nations "Manual of Tests and Criteria for the Transport of Dangerous Goods Recommendations" (4th revised edition), and its consistency is not equivalent to the above manual. Its relevant technical contents are completely consistent with the above manual. In the standard text format, it has been edited according to GB/T1.1-2000.
This standard corresponds to the United Nations "Manual of Tests and Criteria for the Transport of Dangerous Goods Recommendations" (4th revised edition), and its consistency is not equivalent to the above manual. Its relevant technical contents are completely consistent with the above manual. In the standard text format, it has been edited according to GB/T1.1-2000.
Appendix A of this standard is an informative appendix.
This standard is proposed and managed by the National Technical Committee for Standardization of Dangerous Chemicals Management (SAC/TC251). The
responsible drafting unit of this standard: Zhejiang Entry-Exit Inspection and Quarantine Bureau.
Participating drafting units of this standard: Sinochem Chemical Standardization Research Institute.
The main drafters of this standard are: Chen Wen, Wang Xiaobing, Li Zhou, Wang Xuqiang, Wu Zheng, Huang Ying, Zhang Junxi.
This standard is formulated 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 who reach an 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 applies to this standard.
GB/T21631-2008 Test method for ignition of dangerous goods spray in enclosed space
ASTM D240 Standard test method for determination of heat of combustion of liquid hydrocarbon fuels by bomb calorimeter
United Nations "Recommendations on the Transport of Dangerous Goods Model Regulations" (14th revised edition)

People's Republic of China National Standard
GB/T21630-—2008
Dangerous goods
Ignition distance test method for aerosols
Dangeros gods---Ignition distance test method for aerosols2008-04-01Published
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of ChinaNational Standardization Administration
Ignition distance test method for aerosols
2008-09-01Implementation
People's Republic of China
Minjia Standard
Dangerous goods
Ignition distance test method for aerosols
GB/T 21630 2GG8
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GB/T21630--2008
This standard corresponds to the fourth revised edition of the United Nations "Recommendations on the Transport of Dangerous Goods - Test and Criteria" (the fourth revised edition), and its effectiveness is not equivalent. Its relevant technical content is completely consistent with the above-mentioned manual. In the standard text format [Edition modification was made according to GB/T1.1-2000:
Appendix A of this standard is an informative appendix.
This standard is proposed and managed by the National Technical Committee for Standardization of Dangerous Chemicals Management (SAC/TC251). The responsible drafting unit of this standard is: Zhejiang Provincial Entry Inspection and Quarantine Bureau. The participating drafting unit is Sinochem Chemical Standardization Research Institute. The main drafters of this standard are: Chen Wen, Xia Xiaobing, Sansuo, Xia Xuqi Jiangsuo, Huang Ying, Zhang Nianxi. This standard is formulated for consultation.
1 Scope
Test method for ignition distance of dangerous goods spray GB/T 21630--2008
This standard specifies the equipment, materials, test steps and test results for the ignition distance test of sprays (aerosols). This standard is applicable to aerosol products with a spray distance of 15 cm or more. 2 Normative references
The following documents have clauses that become clauses of this standard through their specific application. For any referenced document with a specified period, all subsequent amendments (excluding other revised versions including errata) are not applicable to this standard. However, all parties to the agreement on this standard are encouraged to study whether this document can be used. The latest version of the equipment is applicable to this standard. All references are to the latest edition. GB/T21631-5 Specification for Dangerous Goods ASTM D240 Bomb Heaters UN "Terms and Definitions for the Transport of Goods of Fungi 3 Terms and Definitions UN "Terms and Definitions for the Transport of Goods of Fungi" applies to flammable gases dammable gas flammable gas at 20 and above. |Sprays aerosols
sprays or aerosols
sprays or aerosols, glass
bodies, with or without liquid,
bodies) and the following terms established by ASTMD2
mixtures of 13% or less by volume that can be sprayed
, compressed by pressure, axillary or dissolved in air powder coatings with a release coating that can disperse the contents in the form of solid or liquid suspended particles in the air, in the form of
4 Equipment and Materials
foam, paste or powder, or in liquid or gaseous form
4.120℃ water bottle: accuracy ±1℃
4.2 0.1g
bomb calorimeter
timer (stopwatch): accuracy ±0.25.
4.5 with scale and bracket. The scale unit is meter. 4.6 gas burner with bracket and clamp, and can produce a blue, non-luminous flame 4~5cm high when ignited. 4.7
thermometer: accuracy +! ℃.
condensation meter: accuracy +5.
4. 9 Pressure gauge: accuracy ±0. 1Pa,
5 Test preparation
5. 1 Prepare 6 test samples, 3 of which are filled with the labeled amount of the product (referred to as algae). The other 3 are 0% of the labeled amount. G1/21630—2008
5.2 Use a bomb calorimeter to measure the combustion of the spray. 5.3 Take a safety precaution to prevent people from inhaling harmful substances. 6 Test steps
6.1 Test of full sample volume
6.1.1 This test should be carried out in an environment with no airflow and headwind: the temperature is controlled at 20C±5℃, and the relative humidity is controlled at 30%～80%. 6.1.2 Take 3 full test samples and completely immerse them in a constant temperature water sugar of 20℃+1℃ for 30min. 6.1.3 Before the test begins, each spray must be sprayed for 18 seconds to exclude non-uniform substances that enter the suction tube. 6.1.4 Test the initial discharge rate of the spray internal pressure (to exclude defective or incompletely filled sprays). 6.1.5 The spray instructions should be strictly followed during operation, including whether the spray position of the spray can be adjusted or reversed at will; if it is to be shaken, it should be shaken before the test. 6.1.6 Support the burner on a horizontal table, or fix the burner on a bracket with a flame. 6.1.7 Light the burner, the flame should not emit light, and the height should be 4 cm to 5 cm. 6.1.8 When the test reaches the marked amount of spray sample, the distance between the burner flame and the spray nozzle is 15 cm to 90 cm. The test distance between the burner flame and the spray nozzle is preferably 60 cm. When the spray ignites at a distance of 60 cm, the distance between the burner flame and the spray spray is increased by 15 cm: When the burner flame and the spray spray do not ignite at a distance of 6 cm, the distance is shortened by 5 m. This is to test the minimum distance between the burner flame and the spray spray to produce natural combustion, or to determine that ignition cannot be obtained at a distance of 15 cm between the burner flame and the spray spray. 6.1.9 Adjust the position of the burner and the spray nozzle so that the spray nozzle and the burner flame are at the same height! The spray nozzle is located in the middle and upper part of the burner (see figure). The spray should pass through the upper half of the flame. 5
22888G
6.1.10 Open the start valve of the spray and release the contents 53, unless ignition occurs. If ignition occurs, continue to release and record the flame time 53 from the start of ignition.
6.1.11 If no combustion occurs, adjust the spray position, for example, turn the upright product upside down, and observe whether it burns. If combustion occurs, continue to release and record the flame time from ignition. 6.1.12 Record the test conditions of each step, see Table A. 6.1.13 Test each sample once
6.2 Test the sample with a spray volume of 10% to 12% of the labeled volume. 6.2.1 Test distance If the product does not ignite at 15 cm when full, start the test from 15 cm; if it can ignite when fully filled, start the test again at 15 m above the ignition distance. 6.2.2 Test each product once, record the test results, and see the table in 1.7. Result judgment
The test results and combustion value are calculated by the average value, and the judgment is as follows: 7.1 If the chemical combustion heat of the spray is equal to or greater than 20kJ/g and the ignition distance is 75 cm or more, the spray is classified as extremely flammable; 2
Otherwise, it is classified as flammable.
GB/21630—2008
2 If the chemical combustion heat of the spray is less than 20kJ/g and the ignition distance is 75 cm or more, the spray is classified as extremely flammable. 7.2
7.3 If the chemical combustion heat of the spray is less than 20kJ/g and the ignition distance is greater than or equal to 15cm and less than 75cm, the spray is flammable.
4 If the chemical combustion heat of the spray is less than 20kI/gH, the ignition distance measurement should refer to GB/T21631-20087.4
《Test Method for Ignition of Sealed Space for Dangerous Goods Sprays》determine its flammability, GB/1216302008
Product Name
Initial Load
Spray Distance
As crm
Performance (including the position of the sample)
Is it burning
Is it burning
Is it burning
Is it burning
Is it burning
Jingxiang burning
Black apricot burning tenderbzxz.net
GB/T 21630-2008
(Informative attachment)
Spray ignition distance test record
Sample 1
The 2nd time
Sample 2
The 2nd time
The 1st time
Group 3
The 2nd and 3rd time
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Book number: 1550661-31601
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