GB 28644.3-2012 Classification and Name List of Organic Peroxides GB28644.3-2012 Standard compression package decompression password: www.bzxz.net
This standard specifies the properties, classification, temperature control requirements, desensitization, storage, and transportation safety technical requirements of organic peroxides, and lists the specific names of organic peroxides. This standard applies to the transportation of organic peroxides and storage operations during transportation and transit.
Chapter 5, Chapter 6, Chapter 7, Chapter 8, Chapter 9 and Chapter 10 of this standard are mandatory, and the rest are recommended.
This standard was drafted in accordance with the rules given in GB/T1.1-2009.
This standard is consistent with the relevant technical contents of Part 2 and Part 7 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 Standardization of Hazardous Chemicals Management (SAC/TC251). The
drafting units of this standard are: Shanghai Municipal Transportation and Port Administration, Ministry of Transport Science Research Institute, Ministry of Transport Water Transport Research Institute, Shanghai Research Institute of Chemical Industry, Akzo Nobel Management (Shanghai) Co., Ltd., International Chemical Manufacturers Association, China Chemical Economic and Technological Development Center.
The main drafters of this standard are: Fan Guigen, Chen Zhengcai, Zhang Yanheng, Fan Bin, Peng Jianhua, Chen Rongchang, Li Xingzhen.
The following documents are indispensable for the application of this document. For any dated referenced document, only the dated version applies to this document. For any undated referenced document, its latest version (including all amendments) applies to this document.
GB190 Dangerous Goods Packaging Mark
GB6944 Classification and Name Number of Dangerous Goods
GB12268 Dangerous Goods List
GB21178 Classification Procedure for Self-Reactive Substances and Organic Peroxides
JT397 Safety Regulations for Dangerous Goods Container Port Operations
ISO3679 Flash Point Determination Closed Cup Rapid Balance Method
United Nations "Recommendations on the Transport of Dangerous Goods Model Regulations" (Sixteenth Revised Edition)
United Nations "Recommendations on the Transport of Dangerous Goods Manual of Tests and Criteria" (Fifth Revised Edition)
Foreword III
1 Scope1
2 Normative References1
3 Terms and Definitions1 4
Properties1
5 Classification2
6 Temperature Control Requirements3
7 Desensitization 4
8 Storage requirements 4
9 Transportation 5
10 Labeling 6
Appendix A (Normative Appendix) List of organic peroxides 8
Appendix B (Normative Appendix) Organic peroxides listed in IBC520 and T23 of the Model Regulations 35

ICS 13.300
National Standard of the People's Republic of China
GB28644.3--2012
Classification and list of organic peroxides
Classification and list of organic peroxides2012-07-31Promulgated
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of ChinaStandardization Administration of the People's Republic of China
Implementation on December 1, 2012
Normative references
Terms and definitions
Temperature control requirements
Storage requirements
10) Labeling
Appendix A (Normative Appendix)
List of organic peroxides
Appendix B (Normative Appendix)Organic peroxides listed in IBC520 and T23 of the Model Regulations GB 28644.3—2012
GB28644.3-2012
Chapter 5, Chapter 6, Chapter 7, Chapter 8, Chapter 9 and Chapter 10 of this standard are mandatory, and the rest are recommended. This standard is in accordance with the rules given in GB/T1.1—2009. This standard is consistent with the relevant technical contents of Part 2 and Part 7 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 Standardization of Dangerous Chemicals Management (SAC/1C251). Drafting units of this standard: Shanghai Municipal Transportation and Port Administration, Ministry of Transport Research Institute, Ministry of Transport Water Transport Research Institute, Shanghai Chemical Industry Research Institute, Akzo Nobel Management (Shanghai) Co., Ltd., International Chemical Manufacturers Association, China Chemical Economic and Technological Development Center.
Main drafters of this standard: Fan Guigen, Chen Zhengcai, Zhang Yanheng, Fan Bin, Peng Jianhua, Chen Rongchang, Li Xingzhen, m
1 Scope
Classification and name list of organic peroxides
GB 28644.3—2012
This standard specifies the properties, classification, temperature control requirements, splashing, storage and transportation safety technical requirements of organic peroxides, and lists the specific names of organic peroxides.
This standard applies to the transportation of organic peroxides and storage operations during transportation and transit. 2 Normative references
The following references 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. G3190) Dangerous goods packaging mark
GB6942 Dangerous goods classification and name number GB12268 Dangerous goods name list
GB21178 Classification procedure for white reactive substances and organic peroxides JT397 Safety regulations for dangerous goods container port operations ISO3679 Flash point determination closed cup fast balance method United Nations "Recommendations on the Transport of Dangerous Goods Model Regulations" 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" Sixteenth revised edition) The following terms and definitions defined in the "Model Regulations" and the following terms and definitions are used in this document. 3.1
Organic peroxides
Organic pernxides
Organic substances containing a divalent -)-)- structure can be regarded as derivatives of nitrogen peroxide, that is, one or both of the atoms are replaced by organic radicals:
Self-accelerating decomposition temperature (SADT) The lowest temperature at which self-decomposition of the compound may occur in the container used for transportation. 4 Properties
4.1 Organic peroxides are prone to exothermic decomposition at normal or elevated temperatures. Decomposition can be caused by heat, contact with impurities (such as acids, heavy metal compounds, amines), friction or collision. The decomposition rate increases with temperature and varies with the organic peroxide formulation. Decomposition may produce flammable or flammable gases or vapors. Some organic peroxides should be transported at a controlled temperature. Some organic peroxides may decompose explosively, especially under closed conditions. This property can be modified by adding diluents or using appropriate containers. Many organic peroxides burn violently.
GB 28644.3—2012
4.2 Some organic peroxides, even if in short contact, can cause serious damage to the cornea or be corrosive to the skin. 5 Classification
For the classification of organic peroxides, see CB6944.
5. 1 Classification procedure
For the classification procedure of organic peroxides, see GB21178. 5.2 Classification of organic peroxides not listed in the list of organic peroxides (see Appendix A) The classification and classification of organic peroxides (see Appendix B) not listed in the list of organic peroxides (see Appendix A) in the packaging specification IBC520 (see the Model Regulations) or portable tank specification T23 (see the Model Regulations) for intermediate bulk containers in the Model Regulations shall be subject to the relevant transportation conditions determined by the competent authorities of the country of origin based on the test reports of their qualified testing institutions. 5.3 Samples
Samples of new organic perxenon compounds or new formulations of organic perxenon compounds not listed in the product name list (see Appendix A), if there are no complete test data and they need to be transported for further testing or evaluation, may be classified into an appropriate entry for type B organic peroxides, but the following conditions should be met:
a) Existing data show that the sample is not more dangerous than type B organic perxenon compounds; h) Sample packaging methods refer to the "Model Regulations" and the quantity per transport unit is limited to 10 kg. Existing data show that the control overflow (if any) is too high to cause any dangerous decomposition, and too low to cause any dangerous phase separation.
5.4 Comparison table of organic peroxide types and UN numbers 5.4.1 Organic peroxide types and the corresponding UN numbers in GB12268 are shown in the table! 。 Table 1 Comparison table of UN numbers and types of organic peroxides UN number
(UV number)
Name and description
Liquid type B organic peroxide
Solid type B organic peroxide
Liquid type C organic peroxide
Solid type C organic peroxide
Liquid type D organic peroxide
Solid type D organic peroxide
Liquid type E organic peroxide
Solid type E Type organic peroxide
Liquid Type F organic peroxide
Transition state Type B organic peroxide, temperature controlled United Nations number
(UN number)
Table 1 (continued)
Name and description
GB28644.3—2012
Solid Type B organic peroxide, temperature controlled Type B organic peroxide+ temperature controlled
Solid Type C organic peroxide, temperature controlled liquid Type D organic peroxide, temperature controlled solid Type D organic peroxide, temperature controlled liquid Type E organic peroxide, temperature controlled solid Type E organic peroxide, temperature controlled Condensable Type F organic peroxide, temperature controlled solid Type F organic peroxide, temperature controlled 5.4.2 Organic peroxides allowed to be transported in containers are listed in the list of organic peroxides (see Appendix A) and organic peroxides allowed to be transported in intermediate bulk containers and portable tanks (see Appendix B). The Organic Peroxides List (see Appendix) specifies a generic entry (UN No. 3101-3120) for each substance allowed for transport, and provides corresponding key hazards and notes on transport information.
5.5 Organic Peroxide Mixtures
Mixtures of preparations listed in the Organic Peroxides List (see Appendix A) may be classified as the same type of organic peroxide as its most hazardous ingredient and transported under the transport conditions specified for that type of organic peroxide. However, if two stable ingredients may form a less thermally stable mixture, the accelerated decomposition temperature of the mixture should be determined and, if necessary, temperature control applied in accordance with the requirements of this standard.
6 Temperature control requirements
Temperature control conditions
The following organic peroxides should be temperature controlled during transportation: Type B and Type C organic peroxides with SADT≤50℃; a) Type B and Type C organic peroxides with SADT≤50℃; b) Type D organic peroxides with SADT≤50℃ or weak or no effect when heated under closed conditions and SADT≤45℃; c) Type F and Type F organic peroxides with SADT45℃. 6.2 Control temperature and critical temperature
Control temperature is the highest temperature at which a substance can be safely transported. It is assumed that the temperature around the package does not exceed 55℃ during transportation, and this temperature is reached only for a relatively short time in each 24 hours. If the temperature is out of control, it is necessary to take emergency measures. Critical temperature refers to the temperature at which emergency measures should be taken. See Table 2 for the correspondence between container type and temperature. 3
GB 28644.3—2012
Container type
Single packaging and type bulk container
Portable container
Table 2 Comparison table of container types and temperatures
Additional dispersion temperature (SADT)
SADT20℃
20 C≤SADT≤35 C
SADT3S C
SADT-50 C
·That is, the self-accelerating decomposition temperature for transport. 6.3 Test method
Control temperature
20℃ lower than SADT
5℃ lower than SADT
10℃ lower than SADT
lower than SAD
Dangerous temperature
This SADT 10 ℃
10 ℃ lower than SADT
5 ℃ lower than SADT
5 ℃ lower than SADT
6.3.1 The test method for determining the accelerated decomposition temperature is shown in Section 28 of Part II of the Manual of Tests and Criteria. The test selected should be representative of the actual state of the package to be transported.
6.3.2 The test method for determining flammability is shown in Section 32.4 of Part III of the Manual of Tests and Criteria: Since organic peroxides may react violently when heated, a small amount of sample should be used when determining their flash point. As described in the closed cup equilibrium method of ISO3679, 7 Desensitization
7.1 In order to ensure safety during transportation, organic peroxides are desensitized in many cases by adding certain organic liquids, inorganic solids or water, unless otherwise specified for individual organic peroxide formulations: The following liquids are suitable for diluents used for desensitization: a) Type A diluents are organic liquids that are compatible with organic peroxides and have a boiling point of not less than 150℃. Type A diluents are used to desensitize all organic peroxides.
b) Type B diluents are organic peroxides that are compatible with organic peroxides, have a boiling point lower than 150°C but not lower than 60°C, and a flash point not lower than 5°C. Type B diluents can be used to desensitize all organic peroxides, but the boiling point should be 6°C higher than the SADT of a 50 kg package.
c) Type A diluents can always replace Type 13 diluents. The boiling point of Type B diluent should be at least 60°C higher than the SADT of the organic peroxide.
7.2 Diluents other than Type A or Type B, added to organic peroxide formulations listed in the Organic Peroxides List (see Appendix A) should be compatible. However, if all or part of Type A or Type B diluent is replaced by another diluent of different nature, the organic peroxide formulation needs to be re-evaluated according to the classification procedure in 5.1. 7.3 Water may only be used to desensitize organic peroxides that are indicated as containing water or stable in water in the organic peroxides list (see Appendix A) or in the test report specified in 5.2. 7.4 Organic or inorganic solids may be used to desensitize organic peroxides, but they shall be compatible. 7.5 Compatible liquids or solids shall be substances that have no adverse effect on the thermal stability and hazard classification of the organic peroxide formulation.
8 Storage requirements
The storage of organic peroxides shall meet the following requirements: a) The storage of organic peroxides during transportation, loading and unloading, and transit shall not exceed 72 hours. b) Organic peroxides shall be stored in a specific area, away from direct sunlight, away from all heat sources, and placed in a well-ventilated place.
c) See IT397, GB 28644.3-2012 for the requirements of separation of storage points of organic peroxides from other goods.
d) The temperature of the temperature control facility should be set equal to or lower than the minimum control temperature of the organic peroxide. At the same time, the temperature setting should be careful to avoid freezing or phase separation of organic peroxides. The organic peroxides that have been temperature controlled (cooled) should not be moved out of the temperature control facility for more than 30m. The temperature control facilities used for storage are equipped with temperature display devices and temperature alarm devices when conditions permit. Temperature-controlled organic peroxides should meet the requirements of 9.2.2 and 9.2.3. e) Organic peroxides should keep their original packaging intact and should not be unpacked and packaged. f) In order to prevent organic peroxides from being contaminated and reducing their own stability, no chemical-related operations may be carried out in the organic peroxide storage facilities.
Fire-fighting facilities and equipment should be arranged near the storage facilities. Sparks should not be generated in the storage and operation areas to prevent static electricity accumulation. g)
Sufficient absorbents should be provided in the loading and unloading areas to prevent possible leakage. 9 Transportation
9.1 Relevant regulations
Maintaining the specified temperature is an essential feature of the safe transportation of many organic peroxides. The transportation of organic peroxides shall comply with relevant regulations.
9.2 Temperature control during transportation
9.2. 1 Necessary procedures
Before loading, the transport device should be thoroughly inspected; a
Provide the carrier with the operating instructions of the cooling system; b)
Emergency measures should be complete:
Regularly monitor the operating temperature;
c) The backup cooling system or spare parts are in good condition. 9.2.2 Temperature control device
Any control device and temperature sensing device of the cooling system should be easily accessible, and all electrical connectors should be protected from wind and rain erosion. The temperature of the air in the transport device should be measured by two independent sensors, and the measurement results should be recorded so that temperature changes can be easily detected. The temperature should be checked and recorded every 1-6 hours. When transporting materials with a controlled temperature lower than 25°C, the transport device should be equipped with a temperature alarm whose power is separated from the power of the cooling system to ensure that it works when the temperature is equal to or lower than the controlled temperature. If the temperature exceeds the controlled temperature during transportation, appropriate measures should be taken, including necessary repairs to the cooling equipment or increasing the cooling capacity (such as adding liquid or solid refrigerants). The temperature should also be checked frequently and emergency measures should be prepared. If critical humidity is reached, emergency measures should be taken.
9.2.3 Selection of control method
The suitability of temperature control methods for use in transportation depends on several factors. Factors to be considered include: the controlled temperature of the material to be transported;
b) the difference between the controlled temperature and the expected ambient temperature conditions;
c) the effectiveness of thermal insulation;
d) the time of transportation:
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GB 28644.3—2012
9.2.4 Temperature control method
Methods to prevent exceeding the control temperature in order to increase the temperature control capability: thermal insulation; but the initial temperature of the organic peroxide must be sufficiently lower than the control temperature; a
b) Thermal insulation with a coolant system:
1) Adequate coolant (e.g., liquid nitrogen or solid carbon dioxide) is available; 2) Liquid oxygen or air is not used as a coolant; when most of the coolant is used up, the cooling effect is still uniform; 3)
4) The transport device is clearly marked with a warning: "No ventilation allowed"; Single mechanical refrigeration: For organic peroxides with a flash point more than 5 degrees below the critical temperature, the cooling volume The electrical accessories used in the cooling compartment are explosion-proof to prevent the ignition of flammable vapors produced by organic peroxides; d)
Mechanical refrigeration system is used in combination with the coolant system: 1) The two systems are independent of each other;
2) Comply with the provisions in b) and c);
e) Binary mechanical refrigeration system:
1) In addition to the shared power supply device, the two systems are independent of each other; Each system has the ability to maintain adequate temperature control independently: 2
3) For organic peroxides with a flash point below the critical temperature and above ℃, the electrical accessories used in the cooling compartment are explosion-proof to prevent the ignition of flammable vapors produced by organic peroxides. Note: Since different modes of transport consider different situations, only general guidelines are provided. 10 Label marking
10.1 Label format
Organic peroxides should use the label of Item 5.2 specified in GB190. The label format is shown in Figure 1: 5
(No. 6.2)
Organic peroxide
Symbol (flammable): black or white
Background color: upper half red: lower half yellow The word "5.2" is in the corner
Figure 1 Organic peroxide label format
10.2 Special provisions for labels and marking
10.2.1 Packages containing R, C, D, E or F organic peroxides should be labeled with the label of Item 5.2 of GB190, and there is no need to affix the "flammable liquid" subsidiary hazard label. GB28644.3—2012
10.2.2 Type B organic peroxides shall be affixed with an "explosive" sub-label, unless test data have proven that such organic peroxides do not have explosive properties in the container and such label may be exempted with the approval of the competent authority. 10.2.3 When the Class 8 material meets the Class I or Class II packing standards, a "corrosive\" sub-label is required. 10.2.4 Unless otherwise specified, the formal shipping name of the organic peroxide and its UN number shall be displayed on each package. All package markings shall be clearly visible, able to withstand the sun and rain, and marked on the outer surface of the package on a contrasting background color. 10.2.5 Medium bulk containers and large packagings with a capacity of more than 450L shall be marked on opposite sides. GB28644.3—2012
A, 1 Structure of the Organic Peroxides List
The Organic Peroxides List is divided into 10 columns: Appendix A
(Normative Appendix)
Organic Peroxides List
Column 1: "United Nations Number (UN Number)\or\Organic Peroxide Name": "United Nations Number (UN Number)" - Joint Numbering: "Organic Peroxide Name" Chinese official name of dangerous goods; Column 2: "United Nations Number (UN Number)\or "Organic Peroxide Name"; Column 3: "Content/%" is the mass fraction calculated from the total mass of the mixture; Column 4: "Type A diluent/%" - an organic liquid compatible with organic peroxides, with a boiling point not lower than 150°C. This diluent can desensitize all organic peroxides; Column 5: "Type B diluent/%" - an organic liquid compatible with organic peroxides, with a boiling point not lower than 6°C and a flash point not lower than 5°C. Type B diluent can be used to desensitize all organic peroxides. The boiling point should be at least higher than that of the 50kg package. Self-accelerating decomposition temperature is 6℃ higher:
Column 6; "Solid/weak" - solid compatible with organic peroxides. As a diluent; Column 7: "Water/%\--compatible with organic peroxides, as a diluent; Column 8: "Packing method" - packaging method listed in the packaging specification of the "Model Regulations": Column 9, "Control temperature/℃" - organic peroxides must be controlled within a temperature range below this humidity, Column 10 "Critical temperature/℃" - organic peroxides will be dangerous when above this temperature. Note: The values ​​in columns 3, 4, 5, 6, and 1 are all mass fractions. GH 28644.3—2012
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