GB/T 27835-2011 Test methods for hazardous classification of chemicals 12m drop test GB/T27835-2011 |tt||Standard compression package decompression password: www.bzxz.net
This standard specifies the terms and definitions, equipment and materials, test procedures, test reports and results examples required for the 12m drop test in the hazardous classification test of chemicals. This standard is applicable to determining whether a test unit (article, packaged article or packaged material other than homogeneous liquid) can withstand the impact of free fall without obvious combustion or explosion hazards. This standard is not applicable to tests to evaluate whether packages can withstand impact.
This standard was drafted in accordance with the rules given in GB/T1.1-2009. || tt||
This standard refers to the United Nations "Recommendations on the Transport of Dangerous Goods Model Regulations" (16th revised edition) and the United Nations "Recommendations on the Transport of Dangerous Goods Manual of Tests and Criteria" (5th revised edition).
This standard is proposed and managed by the National Technical Committee for Dangerous Chemicals Management Standards (SAC/TC251).
The drafting units of this standard: Hunan Entry-Exit Inspection and Quarantine Bureau Inspection and Quarantine Technology Center, Tianjin Entry-Exit Inspection and Quarantine Bureau, Jiangnan University.
The main drafters of this standard: Wang Libing, Feng Zhijie, Xiong Zhongqiang, Lu Gang, Han Wei, Zhao Zhuo.
The following documents are indispensable for the application of this document. For all dated references, only the dated version applies to this document. For all undated references, the latest version (including all amendments) applies to this document.
GB14371 Dangerous Goods Transport Explosives Approval, Itemization Procedures and Packing Requirements
GB/T14659 Terminology of Civil Explosives
United Nations "Recommendations on the Transport of Dangerous Goods Model Regulations" (16th revised edition)
United Nations "Recommendations on the Transport of Dangerous Goods Manual of Tests and Criteria" (5th revised edition)

ICS 13. 300
National Standard of the People's Republic of China
GB/T27835—2011
Test method for hazard classification of chemicals-12 m drop test2011-12-30 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration of China
2012-08-01 Implementation
This standard was drafted in accordance with the rules given in GB/T 1,1-2009. GB/T27835—2011
This standard refers to the United Nations Recommendations on the Transport of Dangerous Goods (Sixteenth Revised Edition) and the United Nations Recommendations on the Transport of Dangerous Goods Manual of Tests and Criteria (Fifth Revised Edition). This standard was proposed by the National Technical Committee for the Administration of Dangerous Chemicals (SAC/TC251) and is under the jurisdiction of the State Administration of Standards for Dangerous Chemicals. This standard is drafted by: Hunan Exit-Entry Inspection and Quarantine Bureau Inspection and Quarantine Technology Center, Tianjin Exit-Entry Inspection and Quarantine Bureau, Jiangnan University. The main drafters of this standard are Wang Libing, Feng Zhikan, Xiong Zhongqiang, Lv Gang, Han Wei, Zhao Zhuo. H
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1 Scope
Test methods for hazardous classification of chemicals
12m drop test
CB/T 27835—2011
This standard specifies the terms and definitions, equipment and materials, test procedures, test reports and results examples required for the 12m drop test in the hazardous classification test of chemicals. This standard is applicable to determining whether a test unit (article, packaged article or packaging material other than homogeneous liquid) can withstand the impact of free fall without obvious combustion or explosion hazard. This standard is not applicable to the test of whether the package can withstand the impact. 2 Normative references
The following documents are indispensable for the application of this document. For dated references, only the dated versions apply to this document. For any undated references, the latest versions (including all amendments) apply to this document. GB14371 Dangerous Goods Transport - Explosives - Itemization, sub-item procedures and packing requirements GB/T14659 Terminology for civil blasting materials
United Nations Recommendations on the Transport of Dangerous Goods - Model Regulations 3 (Sixteenth Revised Edition) United Nations Recommendations on the Transport of Dangerous Goods - Manual of Tests and Criteria (Fifth Revised Edition) 3 Terms and definitions
United Nations Recommendations on the Transport of Dangerous Goods - Model Regulations, Manual of Tests and Criteria for the Transport of Dangerous Goods, GB14371 and GB/T14659 and the following terms and definitions apply to this document. 3.1
Explosion
A chemical reaction or state change that generates high temperature and releases a large amount of gas in a very short time, thus causing high pressure in the surrounding medium. 3,2
Deflagrating
A rapid combustion, sometimes accompanied by flames, sparks or flying combustion particles. The speed at which the reaction zone advances into the unreacted material is less than the speed of sound in the unreacted material.
Mass explosion
An explosion that instantly reaches almost the entire load. 3. 4
Explosive substances are substances that can produce gas through chemical reactions, and the temperature, pressure and speed are high enough to cause damage to the surroundings. Pyrotechnic substances are also included even if they do not release gas.
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GB/T27835—2011
Explosive articles are articles containing one or more explosive substances. 3.6
Test unit test unit
articles, packaged articles or packaged substances other than homogeneous liquids. 4 Equipment and materials
4.1 Drop frame
The maximum effective drop height is not less than 12Ⅱ, with a free fall device and an impact posture guide device that does not hinder rebound after impact. 4.2 Drop surface
Supported by a concrete base with a thickness of at least 600mm, a steel plate with a thickness of not less than 75mm, a Brinell hardness of not less than 200, and a length and width of at least 1.5 times the size of the test unit. 4.3 Recording equipment
A high-speed camera with a speed of 500 grids/s or equivalent specifications. 5 Test steps
Notice: This test has potential For the hazard of welding explosion, the test site shall meet the relevant requirements for explosive article testing, and the test personnel shall have the necessary safety knowledge and safety protection. In order to test the safety of personnel, a small-scale preliminary test shall be carried out before attempting to handle a large number of samples.
In some cases, inert materials can be used to replace some explosive articles in the test unit. These inert materials should have the same mass and volume as the explosive articles they replace. Explosive articles should be placed in the position where they are most likely to work during impact. If the test is for packaged materials, inert materials shall not be used to replace any of them. 5.1 Place the test unit on the drop rack. Its lowest point is 12m from the drop surface. 5.2 The test unit falls freely, and the impact posture is observed and recorded. 5.3 After the fall, the corresponding safety waiting period should be observed. Even if no visible explosion, deflagration, etc. occurs during the impact, the damage of the package should be observed and recorded.
5.4 Record the time when ignition is initiated and the severity of the result expressed by body explosion or deflagration. 5.5 The test is to be carried out three times in total. Each test unit is allowed to fall only once. The test may be stopped unless combustion or explosion occurs. 5.6 If the impact causes fire or explosion, the test result is "10", which means that the chemical test unit is too dangerous to be transported; if no fire or explosion occurs in the three drops, the result is "-". 6 Test report
The test report includes:
——Test sample name, quantity, specification
Manufacturer's name;
——Test equipment; bZxz.net
——Packaging description and observation results;
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GB/T 27835-2011
Record of test results, and any phenomena observed in the test that help to explain the test results, including the impact posture of the test unit
Test date, tester's signature, and test unit's seal. 7 Result examples
Chemical Hazard Classification Test Method 12m Drop Test Results Examples See Table 1. Table 1 Result Example
Material or Article
Wire cutter explosive package, two metal boxes containing trays, chain primer (27.2 kg)
CBI confined propellant, diameter 7.11 mm (36.3 kg) (projectile) components including tube, detonator and fuse assembly, colloidal nitrate explosive (22.7 kg)
40% strength ammonium nitrate explosive (22.7 kg)
60% strength pure nitre glycerol explosive (22.7 kg)
50% strength pure nitre glycerol explosive (22.7 kg) Propellant gas generator, net weight 61.7 kg, coal ignition device in aluminum container, 20 individually packed devices in wooden box. Observation results. No reaction. No reaction. No reaction. No reaction. No reaction. No reaction. No reaction. No reaction. No reaction. No reaction. No reaction. No reaction. No reaction. No reaction. No reaction.
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