Some standard content:
ICS13.300
National Standard of the People's Republic of China
GB6944—2012
Replaces GB6944—2005
Classification and code of dangerous goods
National Standard
2012-05-11 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Administration of Standardization of the People's Republic of China
Implementation on 2012-12-01
1 Scope
Normative references
Terms and definitions
Classification of dangerous goods
4.1 Classes, items and packing groups of dangerous goods 4.2
Class 1: Explosives
Class 2: Gases
Class 3: Flammable liquids
Class 4, flammable solids, substances that are easy to naturally emit flammable gases when in contact with water 4.6
Class 5: Oxidizing substances and organic peroxides... Class 6: Toxic substances and infectious substances
4.8 Class 7: Radioactive substances.
4.9 Class 8: Corrosive substances..
4.10 Class 9: Miscellaneous dangerous substances and articles, including environmentally hazardous substances 5 The order of dangerousness of dangerous goods... 6 Dangerous goods numbering.
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GB 69442012
Chapter 4, Chapter 5 and Chapter 6 of this standard are mandatory, and the rest are recommended. This standard was drafted in accordance with the rules of GB/T1.1-2009. This standard replaces GB6944-2005 "Classification and Name Numbering of Dangerous Goods". The differences between this standard and GB6944-2005 are as follows: The terms and definitions in the original standard are revised. The criteria for different dangerous goods categories and items are: 1. The classification and combination of explosive compatibility groups are added; 1. The order of dangerousness of dangerous goods is added; 1. The dangerous goods packaging categories are added.
GB6944-2012
This standard is consistent with the technical content of Part 2: Classification of the United Nations Recommendations on the Transport of Dangerous Goods Model Regulations (16th Revised Edition).
This standard is proposed by the Ministry of Transport of the People's Republic of China. This standard is under the jurisdiction of the National Technical Committee for the Management of Dangerous Chemicals (SAC/TC251). The drafting units of this standard are: Water Transport Research Institute of the Ministry of Transport and Shanghai Chemical Research Institute. The main drafters of this standard are Chen Rongchang, Gu Huili, Hao Weiping, Fan Bin, Chen Zhengcai, and Chu Jia. The previous versions of the standard replaced by the cost standard are: GB6944-1986
-GB6944-2005.
Lianren Limited People and Park
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1 Scope
Classification and product name numbering of dangerous goods
This standard specifies the classification of dangerous goods, the order of dangerousness of dangerous goods and the numbering of dangerous goods. This standard applies to the transportation, storage, distribution and related activities of dangerous goods. 2 Normative references
GB69442012
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. GB11806 Safe Transport Regulations for Radioactive Materials GB/T3536 Determination of Flash Point and Fire Point of Petroleum Products Cleveland Open Cup Method Test Method for Sustained Combustion of Dangerous Goods Flammable Liquids GB/T21622
GB/T21624 Test Method for Solvent Separation of Dangerous Goods Combustible Viscous Liquids GB/T21617 Test Method for Oxidation of Dangerous Goods GB/T21620 Test Method for Oxidation of Dangerous Goods Liquids 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) World Health Organization World Health Organization 3. Terms and definitions
The terms and definitions defined in the United Nations "Recommendations on the Transport of Dangerous Goods Model Regulations" (16th revised edition) (hereinafter referred to as the "Model Regulations") and the following terms and definitions apply to this document. 3.1
Dangerous goods (also known as dangerous goods or dangerous goods) are substances and articles with explosive, flammable, toxic, infectious, corrosive, radioactive and other dangerous characteristics, which are likely to cause personal injury, property damage or environmental pollution during transportation, storage, production, operation, use and disposal and require special protection. 3.2
UN number
A four-digit Arabic number compiled by the United Nations Committee of Experts on the Transport of Dangerous Goods to identify a substance or article or a specific class of substances or articles.
4 Classification of Dangerous Goods
4.1 Classes, Items and Packing Categories of Dangerous Goods 4.1.1 Classes and Items
Dangerous goods are divided into 9 classes according to their hazard or most significant hazard. Class 1, Class 2, Class 4, Class 5 and Class 61 are further divided into items. The categories and items are as follows: Class 1: Explosives
1.1: Substances and articles with a mass explosion hazard: 1.2: Substances and articles with a projection hazard but no mass explosion hazard; 1.3: Substances and articles with a burning hazard and a local explosion hazard or a local projection hazard or both, but no mass explosion hazard:
1.4 Substances and articles that do not present a significant hazard 1.5: Very insensitive substances with a mass explosion hazard; 1.6: Extremely insensitive articles with no mass explosion hazard. Class 2: Gases
2.1: Flammable gases:
2.2 Non-flammable and non-toxic gases:
2.3, toxic gases.
Class 3: Flammable liquids
Class 4: Flammable bodies, substances liable to spontaneous combustion, substances which emit flammable gases in contact with water 4.1: Flammable solids, self-reactive substances and solid desensitized explosives: 4.2: Substances liable to spontaneous combustion:
4.3, substances which emit flammable gases in contact with water Class 5: Oxidizing substances and organic peroxides 5.1: Oxidizing substances:
5.2, organic peroxides.
Class 6: Toxic and infectious substances
6.1, toxic substances:
6.2: infectious substances.
Class 7: Radioactive substances
Class 8: Corrosive substances
Class 9: Miscellaneous dangerous substances and articles including substances hazardous to the environment Note: The numerical order of the categories and items is not the order of the degree of danger. 4.1.2 Dangerous Goods Packaging Classification
Limits and Limits
For packaging purposes, substances other than Class 1, Class 2, Class 7, 5.2 and 6.2, and self-reactive substances in Class 4.1 are divided into three packing classes according to their degree of danger: Class 1, for highly dangerous substances; Class 2, for moderately dangerous substances; and Class 3, for slightly dangerous substances. 4.2 Class 1: Explosives
4. 2. 1 General provisions
4.2.1.1 Explosives include:
Explosive substances (substances which are not explosives themselves but can form gas, vapor or dust explosion environments are not included in the "class", excluding those substances which are too dangerous to be transported or whose main hazard is caused by substances that meet other categories. 2
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GB6944—2012
b) Explosive articles do not include the following devices: the quantity or characteristics of the explosive substances contained therein will not cause any external effects of the device due to injection, ignition, smoke, heat or loud noise after being accidentally or accidentally ignited or triggered during transportation:) Manufactured to produce actual explosion or pyrotechnic effects. a) and h) substances or articles not mentioned. 4.2.1.2 Explosive substances are solid or liquid substances (or mixtures of substances) that can produce gases through chemical reactions, and their temperature, pressure and speed are high enough to cause damage to the surroundings. Pyrotechnic substances are included even if they do not release gases. 4.2.1.3 Explosive articles are articles containing one or more explosive substances. 4.2.2 Items
Class 1 is divided into 6 items.
4.2.2.11.1: Substances and articles with mass explosion hazard: Mass explosion refers to an explosion that can instantly affect almost all of the contents. 4.2.2.21.2: Substances and articles with projection hazard but no mass explosion hazard 4.2.2.31.3: Substances and articles with a burning hazard and a local explosion hazard or a local projection hazard or both, but without a mass explosion hazard.
This item includes substances and articles that meet one of the following conditions a) Substances and articles that can produce a large amount of thermal radiation: b) Substances and articles that produce a local explosion or projection effect or both effects by successive combustion. 4.2.2.4 1.4: Substances and articles that do not present a significant hazard: This item includes substances and articles that pose a relatively small hazard if ignited or triggered during transport: The impact is mainly limited to the package itself, and the fragments emitted are not expected to be large, the range is not far, and the external fire will not cause an instantaneous explosion of almost all the contents of the package. 4.2.2.5 1.5: Very insensitive substances with a mass explosion hazard: This item includes substances that have a mass explosion hazard, but are so insensitive that the possibility of triggering or transitioning from combustion to explosion under normal transport conditions is extremely small.
b) When a large amount of this substance is loaded in the hold, the possibility of transitioning from combustion to explosion is relatively high. 4.2.2.6 1.6: Extremely insensitive articles without mass explosion hazard:) This item includes articles containing only extremely insensitive explosive substances and the probability of accidental explosion or propagation of which is negligible. b) The hazard of the articles in this item is limited to the explosion of a single article. 4.2.3 Division and combination of explosive compatibility groups
4.2.3.1 Among explosives, if two or more substances or articles can be safely stowed or transported together without significantly increasing the probability of accidents or the degree of accident hazard under certain conditions, they can be regarded as the same compatibility group. 4.2.3.2 Class 1 dangerous goods are classified into one of the six items and one of the 13 compatibility groups according to the type of hazard they possess. Various explosive substances and articles that are considered compatible are listed in one compatibility group. Tables 1 and 2 show the method of assigning compatibility groups and the possible combinations of hazardous items associated with each compatibility group: Articles of compatibility groups D and E may be fitted with or packaged with an initiation device, but the initiation device shall be equipped with at least two effective protective functions to prevent explosion when the initiation device is accidentally activated. Such articles and packaging should be assigned to compatibility group 1D or E:
b) Articles of compatibility groups D and N may be packaged with an initiation device, although the initiation device is not equipped with two effective protective functions, but under normal conditions of transport, the accidental activation of the initiation device will not cause an explosion. Such packages should be assigned to compatibility group D or N.
e) Substances or articles assigned to compatibility group S should be determined by experiments in Section 1.4. d) Substances or articles assigned to compatibility group N should be determined by experiments in Section 1.6. 3
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Primary explosive substances
Table 1 Classification of explosive compatibility groups
Description of substances and articles to be classifiedbzxz.net
Articles containing primary explosive substances but not containing two or more effective protective devices. Certain articles, such as detonators for blasting, assemblies of detonators for blasting and cap-shaped primers, are included although these articles do not contain a primary explosive
propelling explosive substance or other deflagration explosive substance or articles containing such explosive substance; secondary detonating substance or black powder or articles containing a secondary detonating substance; articles without initiating means and propelling charge or containing a primary explosive substance and two or more effective protective devices; articles containing a secondary detonating substance, without initiating means, with a propelling charge (other than that containing flammable liquids or gels or self-extinguishing substances);
articles containing a secondary detonating substance, with initiating means, with a propelling charge (other than that containing flammable liquids or gels or natural liquids) or without a propelling charge; pyrotechnic substances or articles containing pyrotechnic substances or articles containing both an explosive substance and an illuminating, incendiary, tear-emitting or smoke-emitting substance (water-activated articles or articles containing self-phosphorus, group compounds, Articles containing explosive substances and flammable liquids or gels, or natural liquids
Articles containing explosive substances and white phosphorus
Articles containing explosive substances and flammable gases or gels Articles containing explosive substances and toxic chemicals Articles containing explosive substances or explosive substances and having special hazards (e.g. due to water activation or containing self-contained liquids, phosphides or pyrophoric substances) Articles containing only extremely insensitive detonating substances Substances or articles packaged or designed so that, except in the case of fire, any hazardous effects arising from accidental detonation will not extend to the package and, in the event of fire damage to the package, all blast and projection effects will be so limited as not to hinder or prevent fire prevention or other emergency measures in the immediate vicinity of the package Table 2 Combinations of hazard divisions and compatibility groups for explosives Hazard division
Compatibility group
Compatibility group
1. 1B, 1.2B, 1.4B | .1G,1.2G,1.3G,1.4G
1.2H.1.3H
1. 1J.1. 2J.1. 3J
1.2K.1.3K
1.IL.1.2L1.3L
4.3 Class 2, Gases
4.3.1 General provisions
4.3.1.1 Gases in this class refer to substances that meet one of the following conditions: a) substances with a vapor pressure greater than 300 kPa at 50°C; b) substances that are completely gaseous at a standard pressure of 101.3 kPa at 20°C. GB69442012
4.3.1.2 This class includes compressed gases, liquefied gases, dissolved gases and refrigerated liquefied gases, vapor mixtures of one or more gases with one or more substances of other categories, gas-filled articles and aerosols. 4.3.1.2.1 Compressed gas refers to gases that are completely gaseous when pressurized for transport at -50°C, including all gases with a critical temperature less than or equal to -50°C.
4.3.1.2.2 Liquefied gas refers to gas that is partially liquid when packaged under pressure for transport at a temperature greater than -50°C. It can be divided into: a) High-pressure liquefied gas: gas with a critical temperature between -50°C and 65°C; b) Low-pressure liquefied gas: gas with a critical temperature greater than 65. 4.3.1.2.3 Dissolved gas: gas dissolved in a liquid solvent when packaged under pressure for transport. 4.3.1.2.4 Refrigerated liquefied gas: gas that is partially liquid due to its low temperature when packaged for transport. 4.3.1.3 Gases and gas mixtures with more than two hazardous items shall have the following order of priority: a) Item 2.8 takes precedence over all other items: b) Item 2.1 takes precedence over Item 2.2.
4.3.2 Items
Class 2 is divided into 3 items
4.3.2.1 Item 2.1: Flammable gases
This item includes gases that meet one of the following conditions at 20°C and 101.3kPa:) Gases with a lower explosion limit of less than or equal to 13%! b) Gases with an explosion limit (combustion range) greater than or equal to 12% regardless of their lower explosive limit 4.3.2.2 Item 2.2: Non-flammable and non-toxic gases 4.3.2.2.1 This item includes asphyxiating gases, oxidizing gases and gases that do not belong to other items. 4.3.2.2.2 This item does not include gases with a pressure of less than 200kPa at a temperature of 20C and that have been liquefied or refrigerated. 4.3.2.32.3: Toxic gases
This item includes gases that meet one of the following conditions: a) Gases whose toxicity or corrosiveness is harmful to human health; b) Toxic or corrosive gases with an acute median lethal concentration 1.Cs value less than or equal to 5000ml/m3. Note: The concentration of gas that is most likely to cause half of the test animals to die within 14 days if continuously inhaled by young male rats for 1h. 4.4 Class 3: Flammable liquids
4.4.1 This class includes flammable liquids and liquid desensitized explosives 4.4.1.1 Flammable liquids refer to flammable liquids or liquid mixtures, or liquids with solids in solution or suspension, with a closed loop test flash point not higher than 60C, or an open cup test flash point not higher than 65.6℃. Flammable liquids also include liquids that meet one of the following conditions: 1) Liquids submitted for transportation at a temperature equal to or higher than their flash point; 5
GB6944-2012
b) Substances that are transported or submitted for transportation in liquid form at high temperatures and emit flammable vapors at a temperature equal to or lower than the maximum transportation temperature.
4.4.1.2 Liquid desensitized explosives refer to a homogeneous liquid mixture formed by dissolving or suspending explosive substances in water or other liquid substances in order to suppress the explosive properties of explosive substances. 4.4.2 Complies with 4.4.1.1 Definition of flammable liquids, but liquids with a flash point higher than 35°C and that do not burn continuously are not considered flammable liquids in this standard. Liquids that meet one of the following conditions are considered to be unable to burn continuously a) Liquids that are subjected to a continuous combustion test in accordance with GB/T21622 and the results show that they cannot burn continuously: b) Liquids with a flash point greater than 100°C as determined in accordance with GB/T3536: ) Solutions that contain more than 90% water by mass and are miscible in water. 4.4.3 Classification of packaging categories for Class 3 dangerous goods The packaging category of flammable liquids is determined based on the flash point (closed cup) and initial boiling point in the "Hazard Classification Table by Flammability (Table 3)". Table 3 Hazard categories according to flammability
Packing category
Inside point (closed cup)
2230#600
4.4.3.1 For liquids that are flammable and flammability is their only hazard, use Table 3 to determine their hazard category. Tough boiling point
35 ℃
>35 ℃
>35 ℃
4.4.3.2 For liquids with other hazards, the hazard category determined in Table 3 and the hazard category determined according to the severity of other hazards should be taken into account, and the classification and packing category should be determined according to their primary hazard. 4.4.3.3 Viscous substances with a flash point below 23°C, such as paints, enamels, spray paints, varnishes, adhesives and polishes, may be classified as blood-type packaging in accordance with the procedures specified in Section 32.3 of Part III of the United Nations "Manual of Tests and Criteria for the Transport of Dangerous Goods" (revised edition) (hereinafter referred to as the "Manual of Tests and Criteria") according to the following: a) Viscosity expressed in terms of flow-through time (seconds): b) Closed cup flash point:
) Solvent separation test.
4.4.3.4 Viscous flammable liquids with a flash point below 23°C, such as paints, enamels, spray paints, varnishes, adhesives and polishes, may be classified as mountain-type packaging if they meet the following conditions:
) In the solvent separation test, the clear solvent separation layer is less than 3%; b) Mixture Or any separating solvent does not meet the criteria of 6.1 or Class 8. 4.4.3.5 Substances classified as flammable liquids due to being transported at high temperatures are packaged in Class I. 4.4.3.6 Viscous substances with the following properties: Flash point between 23°C and 60°C:
- Not toxic, corrosive or environmentally hazardous: - Contains not more than 20% nitrocellulose and the nitrogen content of nitrocellulose by dry weight does not exceed 12.6% - Packed in a container with a capacity of less than 450L. If the following conditions are met, they are not subject to this standard (except for air transport): a) In the solvent separation test (see GB/T 21624), the height of the solvent separation layer is less than 3% of the total height; in the viscosity test using a nozzle with a diameter of 6mm (see Part 3, Section 32.4.3 of the Manual of Tests and Criteria); Subsection), meet one of the following conditions:
1) The flow time is greater than or equal to 60#
2) The flow time is greater than or equal to 40, and the viscous material contains no more than 60% of Class 3 substances. 4.5 Class 4: Flammable solids, substances that are prone to spontaneous combustion, and substances that emit flammable gases when in contact with water 4.5.1 General provisions
This class includes flammable solids, substances that are prone to spontaneous combustion and substances that emit flammable gases when in contact with water, divided into 3 items. 4.5.2 Items
4.5.2.14.1 Item: Flammable solids, self-reactive substances and solid desensitized explosives: Flammable solids: Solids that are easily burned and solids that may catch fire by friction: GB69442012
Self-reactive substances: Even in the absence of oxygen (the presence of air Thermally unstable substances that are prone to rapid exothermic decomposition: Desensitized explosives: A homogeneous solid mixture formed by wetting explosive substances with water or alcohol or diluting explosive substances with other substances in order to suppress the explosive properties of explosive substances. 4.5.2.2 Item 4.2: Substances that are prone to spontaneous combustion This item includes pyrophoric substances and self-heating substances: a) Pyrophoric substances: Substances that burn in less than 10 minutes even if only a small amount is in contact with air, including mixtures and solutions (liquids or solutions);
b) Self-heating substances: Substances other than pyrophoric substances that can generate heat by themselves when in contact with air. 4.5.2.3 Item 4.3: Substances that release flammable gases when in contact with water Substances in this item refer to substances that release flammable gases when in contact with water and the gases can form explosive mixtures when mixed with air. 4.5.3 Classification of packaging categories for Class 4 dangerous goods Except for self-reactive substances in Item 4.1, the packaging categories of Class 4 dangerous goods are divided according to the hazard characteristics of flammable solutions, substances that are prone to spontaneous combustion and substances that release flammable gases when in contact with water. 4.5.3.1 Flammable solids:
Solids (other than metal powders) which are easily combustible, when tested by test a) described in part 3, sub-section 33.2.1 of the Manual of Tests and Criteria, have a burning time of less than 5 min and the flame passes through the wetted section, shall be assigned to packing group 2. Metal or metal alloy powders shall be assigned to packing group 3 if the reactive section propagates over the entire length of the specimen within 5 min.
Solids (other than metal powders) which are easily combustible, when tested by test b) described in part 3, sub-section 33.2.1 of the Manual of Tests and Criteria, have a burning time of less than 45 min and the wetted section resists the propagation of flame for at least 4 min shall be assigned to packing group 4. Metal powders shall be assigned to packing group 5 if the reactive section propagates over the entire length of the specimen in more than 5 min but less than 10 min.
Solids which may ignite by friction shall be assigned to packing groups by analogy with existing entries or by any appropriate special provisions. 4.5.3.2 Substances liable to spontaneous combustion:
All pyrophoric solids and pyrophoric liquids shall be assigned to packing group II: a
Self-heating substances which, when tested according to the test method described in subsection 33.3.1.6 of part 3 of the Manual of Tests and Criteria, obtain a positive result when tested at 140°C using a 25 mm sample cube shall be assigned to packing group II:) Self-heating substances which, when tested according to the test method described in subsection 33.3.1.6 of part 3 of the Manual of Tests and Criteria, meet the following conditions shall be assigned to packing group I:
12/ A positive result is obtained when tested at 140°C using a 100 mm sample cube. A positive result is obtained when tested at 140°C using a 25 mm sample cube. Negative result is obtained when testing with a 100mm sample cube at 140°C. Negative result is obtained when testing with a 25mm sample cube at 140°C, and positive result is obtained when testing with a 100mm sample cube at 120°C, and the substance will be transported in a package with a volume greater than 4501.: 3 Positive result is obtained when testing with a 100mm sample cube at 140°C. Negative result is obtained when testing with a 25mm sample cube at 140, and positive result is obtained when testing with a 100mm sample cube at 100°C.
4.5.3.3 Substances which in contact with water release flammable gases: a) Any substance which reacts violently with water at ambient temperature and the gases produced usually show a tendency to spontaneous combustion, or which reacts readily with water at ambient temperature and releases flammable gases at a rate greater than or equal to 10 l per kilogram of substance per minute, should be classified as packing group 1;
b) Any substance which reacts readily with water at ambient temperature and releases flammable gases at a maximum rate greater than or equal to 20 l per dry gram of substance per hour and which does not meet the criteria for packing group 1 should be classified as packing group ii; Any substance which reacts slowly with water at ambient temperature and releases flammable gases at a maximum rate greater than or equal to 1 litre per kilogram of substance per hour and which does not meet the criteria for packing group 1 or group ii should be classified as packing group ii. 4.6 Class 5: Oxidizing substances and organic peroxides 4.6.1 General provisions
This class includes oxidizing substances and organic peroxides, which are divided into two items 4.6.2 Items
4.6.2.1 Item 5.1: Oxidizing substances
Oxidizing substances are substances that may not burn themselves, but may cause or promote the combustion of other substances due to the release of oxygen. 4.6.2.2 Item 5.2: Organic peroxides
4.6.2.2.1 Organic peroxides are organic substances containing a divalent peroxy group (-0-0-) structure. 4.6.2.2.2 When an organic peroxide formulation meets one of the following conditions, it is regarded as a non-organic peroxide: 1) The mass fraction of effective oxygen in the organic peroxide calculated according to formula (1) does not exceed 1.0% and the mass fraction of hydrogen peroxide does not exceed 1.0%:
X=16X2(nXC)
Wherein:
X effective oxygen content, expressed as mass fraction, %; organic peroxide 1 number of peroxy groups per molecule; C--concentration of organic peroxide, expressed as mass fraction, %! Relative molecular mass of organic peroxide, ++++++(1)
b) The effective oxygen mass fraction of the organic peroxide does not exceed 0.5%, and the mass fraction of hydrogen peroxide exceeds 1.0% but does not exceed 7.0%.
4.6.2.2.3 Organic peroxides are divided into seven types from Type A to Type G according to their degree of hazard: a) Type A organic peroxides
Organic peroxide preparations that can detonate or deflagrate rapidly when packed in containers for transport. Type B organic peroxides
are explosive organic peroxide preparations that neither explode nor deflagrate rapidly when packed in a container for transport, but may thermally explode in the container. The maximum amount of such organic peroxides packed in a container may be 25kg, except where the maximum amount needs to be limited to a lower amount in order to exclude detonation or rapid deflagration in the package. Type C organic peroxides
are explosive organic peroxide preparations that are packed in containers (up to 50) for transport and are unlikely to detonate or deflagrate rapidly or thermally explode.
d) Type D organic peroxides
Organic peroxide preparations that meet one of the following conditions may be accepted for transport in packages with a net weight not exceeding 50kg: 1) If in laboratory tests, they partially detonate, do not deflagrate rapidly, and do not show any violent effects when heated under closed conditions; 2) If in laboratory tests, they do not detonate at all, deflagrate slowly, and do not show violent effects when heated under closed conditions. 3) If in laboratory tests, they do not detonate or deflagrate at all, and show moderate effects when heated under closed conditions. Type E organic peroxides
Organic peroxide preparations that do not detonate or deflagrate in laboratory tests, and show only weak effects or no effects when heated under closed conditions may be accepted for transport in packages not exceeding 400kg/4501. ) Type G organic peroxides
Organic peroxide formulations which, in laboratory tests, neither detonate nor deflagrate in the cavitation state, show only a weak or no effect when heated under confinement, and have a weak or no explosive power, may be considered for transport in IBCs or tanks. ) Type G organic peroxides
1) Organic peroxide formulations which, in laboratory tests, neither detonate nor deflagrate in the cavitation state, show no effect when heated under confinement, and have no explosive power, shall be exempted from classification into Division 52, provided that the formulation is thermally stable (the self-accelerating decomposition temperature of a 50 K package is 60°C or higher), and liquid formulations shall be desensitized using a Type A diluent.
2) If the formulation is not thermally stable, or is desensitized using a diluent other than a Type VIII diluent, the formulation shall be classified as a Type F organic peroxide.
4.6.3 Class 5: Division of dangerous goods packaging categories 5.1 Oxidizing substances The packaging categories are divided according to the hazards of oxidizing solids and oxidizing liquids. 4.6.3.1 Oxidizing solids
Oxidizing solids are divided into packing categories according to the test procedures described in GB/T21617 and the following standards. 4.6.3.1.1 Packing category 1: When the sample of this substance is tested in a mixture of 4:1 or 1:1 by mass with cellulose, the average burning time shown is less than the average burning time of a mixture of potassium bromate and cellulose in a ratio of 3:2 by mass. 4.6.3.1.2 Packing category: When the sample of this substance is tested in a mixture of 4:1 or 1:1 by mass with cellulose, the average burning time shown is equal to or less than the average burning time of a mixture of potassium bromate and cellulose in a ratio of 2:3 by mass. And the criteria for packing group 1 are not met:
4.6.3.1.3 Packing group I: When the sample of the substance is tested as a mixture of 4:1 or 1:1 by mass to cellulose, the average burning time shown is equal to or less than the average burning time of a mixture of potassium bromate and cellulose in a ratio of 3:7 by mass, and the criteria for packing groups 1 and II are not met:
4.6.3.1.4 Not item 5.1: When the sample of the substance is tested as a mixture of 4:1 or 1:1 by mass to cellulose, it does not ignite and burn, or the average burning time shown is greater than the average burning time of a mixture of potassium bromate and cellulose in a ratio of 3:7 by mass. 4.6.3.2 Oxidizing liquids
Oxidizing liquids are assigned packaging categories in accordance with the test procedures described in GB/T21620 and the following standards. 9Item 1: When the sample of the substance and the cellulose mixture in the ratio of 4:1 or 1:1 by mass are tested, they do not ignite and burn, or the average burning time is greater than the average burning time of the mixture of potassium bromate and cellulose in the ratio of 3:7 by mass. 4.6.3.2 Oxidizing liquids
Oxidizing liquids shall be assigned packaging categories in accordance with the test procedures described in GB/T 21620 and the following standards. 9Item 1: When the sample of the substance is tested in a mixture with a mass ratio of 4:1 or 1:1 to cellulose, it does not ignite and burn, or the average burning time is greater than the average burning time of a mixture with a mass ratio of potassium bromate to cellulose of 3:7. 4.6.3.2 Oxidizing liquids
Oxidizing liquids are assigned packaging categories in accordance with the test procedures described in GB/T 21620 and the following standards. 9
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