GB 19452-2004 Safety specification for inspection of hazardous properties of oxidizing dangerous goods
Some standard content:
ICS13.300;55.020
National Standard of the People's Republic of China
GB19452-—2004
Safety code for inspection of hazardous properties for dangerous goods ofoxidizing 2004-03-04 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration
2004-10-01 Implementation
Chapter 4, Chapter 5 and Chapter 6 of this standard are mandatory, and the rest are recommended. GB19452—2004
This standard is not equivalent to the United Nations Recommendations on the Transport of Dangerous Goods Model Regulations (1st edition) and the Protocol on Tests and Criteria for the Transport of Dangerous Goods (4th edition). Its relevant technical contents are consistent with the above regulations. The standard text format has been edited and modified according to G/1.1-200. This standard was proposed and approved by the National Technical Committee for Standardization of Dangerous Chemicals (SA/C: 251). The responsible entities for this standard are: National Dangerous Goods Center for Experimental Research of the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, and the vertical planning entities for this standard are: People's Republic of China Export-Import Inspection and Quarantine Administration, Taiyang Dangerous Goods Association, and Jiangnan University. The main drafters of this standard are: Tu Libing, Xiang Ningfa, Li Jing, Zhang Yuan, Li Xiusa, and Liu Shaocong. This standard is formulated for the first time. 1 Scope Safety specification for inspection of hazardous properties of oxidizing dangerous goods. Standard promotion regulations [ Requirements, tests, marking and labeling, and inspection rules for dangerous goods other than oxidizing substances. This standard is applicable to the inspection of the hazardous characteristics of dangerous goods with oxidizing properties. 2 Normative references
GA19452—2004
The provisions of the following documents are considered as the provisions of this standard through reference in this standard. For the same documents with a date, all subsequent amendments (excluding errors) are not applicable to this standard. However, it is recommended to study whether the new versions of these documents can be used according to the method of establishment of this standard. Referenced documents, the latest versions of which are included in this standard. (H13458-25 General rules for the safety of low-risk goods United Nations Protocol on the transport of dangerous goods (13th revised edition) United Nations Protocol on the transport of dangerous goods General rules for the test and standard methods) 3. Requirements and definitions
The following technical definitions apply to this standard. 3.1
Oxidizing substances
In high oxidizing conditions: have strong oxidizing properties, decompose significantly and release oxygen efficiently 3.2
Alkaline oxidizing substances react with water to obtain oxidants that react with acid to form salts and water, mostly metal oxides. 3.3
Aldehydic oxides react with water to obtain oxidants that react with alkali to form salts and water, mostly non-metal oxides. 3.4
Gold oxidesmetal axidized substances are products of the reaction of a metal element with a gas.
nonmetal oxides
products of the reaction of a nonmetal element with oxygen. 3.6
dry fiber l
elastic fiber with a length of 5 cm1~2 m and a diameter of 25 m. 3.7
standard mixed substance a mixture of sodium sulfide and cellulose in a ratio of 3:7 used in this standard test. 3.B
standard oil mixture substance axidized substances are products of the reaction of sodium sulfide and dry cellulose in a ratio of 3:7 used in this standard test. GR 19452—2004
Standard mixture III mtxtire silstonre ot reference II The mixture used in this standard is a mixture of 23% nitric acid to dry fiber mass ratio. 3.10
Standard mixture substance of reference The mixture used in this standard is a mixture of 65% nitric acid to 11% cellulose mass ratio. 3.11
Standard mixture Vmixtire subytaneeut reference V The mixture used in this standard is a mixture of 5% nitric acid to dry fiber mass ratio of 1:1. 3.12
Standard mixture substance The mixture used in this standard is a mixture of 40% nitric acid to dry fiber mass ratio of 1:1. 3.13
Inmixturesubstanceteatedf mixture of the substance to be tested and the fiber ratio of the fiber to be tested is 1:1. 3.14
Imixlire suhslance tested mixture of the substance to be tested and the fiber ratio of the fiber to be tested is 1:1. Requirements
4.1 Chemicals should be packaged in a sealed container. It is strictly forbidden to store and transport them in containers that are classified as combustibles, organic substances, reducing substances, combustible substances, and flammable substances. 4.2 The markings, printings, or stickers on the chemical packaging, as well as the markings and dangerous goods symbols should be clear and accurate, in accordance with the relevant requirements of (B19455204).
4.3 Different types of chemicals should be stored and transported in appropriate storage and transportation locations according to their different properties and fire extinguishing methods. 4.4 The storage and transportation areas should be cleaned before and after transportation. 4.5 The transportation location should be far away from fire, heat and water sources, and should be protected from direct sunlight. 4.6 During the transportation process, do not use methods such as lifting, pulling, overturning, dragging, etc., and try to avoid friction and impact to prevent explosion. 4.7 The appropriate name label and corresponding national abbreviation "VII" of the dangerous goods should be marked on each package of the goods. Example: zinc aldehyde LJN2169
4.8 The shape of the cup is 45 degrees to the maximum: small size 100mm×00mm ：But the size of the package only allows the attachment of a smaller label. The label has a line 5mm away from the edge facing the color and symbol. 4.3 The label is divided into two halves, the background color is white, the upper half is a graphic symbol, that is, the circle is surrounded by a flame in black: the lower half is the number \5.1\ written in the bottom corner.
4.10 If the substance has other hazards, the label should be placed separately with the oxidizing label, 4.11 Label position:
a) If the size of the package is large enough, it should be attached to the package and close to the official remote b) It should be affixed to the wearer and will not be covered by any part of the wearer or the accessories of the wearer, or by any other label or mark: :) When the primary hazard label and the secondary hazard label are in the same place, the two should be affixed together. When the shape of the package is irregular; too small to be attached to the label to the satisfaction of the person, the label can be hung on the color piece with a non-standard label or other mounting plate.
5 British inspection
5.1 Test for hazardous characteristics of solid oxides
5.1.1 Test purpose
GB 19452—2004
The oxidizing property of a substance is determined by determining the force with which a solid substance increases the combustion speed of a combustible substance when completely mixed with the solid substance, or the force with which a mixture that will ignite will ignite. 5.1.2 Sample quantity and sample preparation
5.1.2.1 Take 50 g of representative substances from the goods to be inspected for hazardous characteristics testing. 5.1.2.2 Check whether the substance is smaller than 500 μm in diameter. If the diameter is less than 500 μm, The powder accounts for more than 10% of the total mass. If the substance is easily oxidized, grind the test sample into powder. 5.1.2.3 Preparation of potassium phosphate standard material: The potassium phosphate should be ground into powder by grinding, and the part with a nominal particle size of 1.151mm-0.3mm should be used as the standard material: Dry the standard material at 65°C to a constant mass (time is at least 12h), and then put it into a drying device (with a drying tester) to cool and wait for 1 month. 5.1.2.4 Preparation of dried cellulose fibers: The fiber density should not exceed 25m.After drying at 105°C to a constant mass (at least 4 hours), place in a desiccator (with a temperature below 30 °C) and cool to room temperature for 1 hour. The water content should be less than 5%. If necessary, the ventilation time can be extended. 5.1.2.5 Prepare the standard mixture according to the ratio required by the test case. 5.1.2.6 Prepare the test materials according to the ratio required by the test case. 5.1.3 Test receiver and equipment 5.1.3.1 Solid oxidation test instrument. The instrument should be placed in a ventilated area with other properties. The air flow velocity should be 0.5 m/s or less. The smoke exhaust system should be able to absorb the smoke. 5.1.3.2 A 0.5 mm diameter, 7 cm, ...7 cm, 0.5 mm diameter, 7 cm, 7 cm, 0.5 mm diameter, 7 cm, 7 cm, 0.5 mm diameter, 7 cm, 7 cm 5.1.4 Test method
5.1.4.1 Prepare the standard mixture of potassium standard substance No. 31 and fiber grade respectively. Prepare the test mixture No. 30 and fiber grade respectively. Each test mixture should be prepared separately and used as soon as possible. The mixture should be suitable for mechanical mixing.
5.1.4.2 Use a cone-shaped flow bucket mold and make the mixture into a truncated circular body with a bottom diameter of 7mm. Cover the solid chemical test point at the ambient temperature of 15 to 25 degrees. Turn on the power of the solid oxide tester. Keep the power on to see if the mixture is ignited. and burn. If the mixture burns within 3 minutes, the test is terminated: the main reaction (such as fire, scorching or flameless burning) is terminated from the time the power is turned on. As the combustion time of the mixture, the sensitive reaction after the main reaction, such as sparks or popping, should not be included in the scope of special consideration. If the effector breaks during the test, the test should be restarted unless the failure of the effector to break clearly shows that it does not affect the test results.
5.1.4.4 Each test object is subjected to 5 tests based on the standard mixture of the compound: 5.2 Test for hazardous characteristics of oxidants in injection
5.2.1 Test purpose
It is determined that a liquid substance increases the flammable substance when fully mixed with a combustible substance. The potential for burning speed or intensity to form a flammable mixture is used to determine the oxidizing ability of the substance. 5.2.2 Number of samples and sample preparation
5.2.2.1 Take 50g of representative material for hazardous special inspection. 5.2.2.2 Preparation of carbon fiber filaments: Carbon fiber filaments with a temperature of 700 °C and a thickness of 25mm are put into a drying oven (section "Refractory Agents"). The content of nitrite should be less than 0.03% by mass. If necessary, the dry combustion time can be extended. 5.2.2.3 Use a high acid content of 0%, a sodium hydroxide content of 10%, and a nitric acid content of 65%. 19452-2004
liquid as the test material. Prepare the standard compound, V, and Amine according to the ratio required by the test. If the test is a saturated solution, prepare
5.2.2.4 Prepare the test compound according to the ratio required by the test. 5.2.3 Tester and equipment
5.2.3.1 System Pressure Vessel: More specifically, the standard for the transport of dangerous goods in accordance with the Recommendations for Testing and Standards Manual 3 (4th edition). 5.2.3.2 Ignition system includes a 2 = cm nickel / life war, diameter 3.61m1, resistance 0.850/m. A 5m diameter rod is used to make the metal into a wire shape, which is then connected to the ignition electrode. The distance between the bottom of the pressure vessel and the ignition wire should be 2mm. If the electrode is not regulated, the ignition wire terminals between the line and the bottom of the vessel should be separated from the insulation. The metal wire is heated by a direct current source capable of supplying at least 10A. 5.2.4 Test Method
5.2.4.1 Place 2.30 liquid and 2.40 fiber ratio sample in a pressure-sensitive, non-heat-transmitting container with the ignition plug at one end and mix them with a glass stirrer. For safety, the mixture should be stirred with the operator in a controlled manner before mixing and before mixing. (If the mixture ignites during mixing or filling, no test is required.) 5.2.4.2 Place the mixture in small batches into a container and tap gently, ensuring that the mixture is placed around the ignition line and in close proximity to it. The line should not be bent during filling. The clamp should be tightly closed to prevent drying. 5.2.4.3 Move the container of mixture to the ignition support. The mixture is placed on a rack, with the explosion-proof disc down, in a suitably explosion-proof ventilated ignition chamber, and the power supply is connected to the ignition pump and a current of 10A is applied. The time from the start of mixing to the connection of the power supply should be approximately 11 nm. 5.2.4.4 The signal generated by the force sensor shall be recorded on a suitable system that can evaluate and permanently record the time/pressure graph (e.g. a transient recorder combined with a chart recorder). The mixture is heated to a temperature of at least 60 °C. If there is no rupture at the explosion point, the equipment shall be carefully dismantled after the mixture has cooled and measures to prevent the increase of the risk of explosion shall be taken. 5.2.4.5 The complex and standard metal are tested 3 times at each test period, with the operating pressure ranging from 6%0 kTa above the gauge pressure to a minimum of 100 kTa. 2070 kHa required time to ignite, and the classification is based on the time. 5.3 Judgment criteria
5.3.1 If one of the following conditions is met, it is judged as an intermediate oxide in item 5.1. a) The average combustion time of test compound I and II should be equal to or less than the average combustion time of the standard mixture. Example: 1) Test mixtures 1 and Ⅱ can ignite and burn separately. If one of the following conditions is met, it is judged as an intermediate oxide in item 5.1: 5.3.2:
Test compound I can ignite;
) The average combustion time of the test compound when the pressure rises from 6P (barrel) to 2070Pa is equal to or less than the average combustion time of the standard mixture. 5.4 Hazard level
According to the technical standards 5.1 and 5.2, the three oxides are classified into hazard levels according to Table 1: Table 1 Hazard level classification
Original compounds
|The average combustion time of the mixture or the average energy of the mixture is less than the standard energy time of the mixture,
The average measured energy time of the mixture or the average energy time of the mixture is less than the standard energy time of the mixture, and the average measured ... Regular season system
Three are general hazard control
There are legal risks
Packing specifications
In oxygen mining
6 Inspection specifications
Table 1 (continued)
Test supervision
Test mud will be carefully carried out when spontaneous combustion occurs, or the average time of the pregnancy test is small. The test mud platform, the level of the bed, the time or the small pregnancy standard The average pressure rise time of the whole test mud platform cannot meet the requirements of Class 1 packaging. The average pressure rise time of the whole test mud platform is very strict or the average pressure rise time of the whole test mud platform cannot meet the requirements of Class 1 packaging. The inspection items are inspected according to the key items in Chapter 4 and Chapter 5 of this standard. 6.2 Recording of hazardous characteristics inspection When one of the following situations occurs, the hazardous characteristics should be inspected: a) New products are put into production or old products are put into production. When the product is changed: after the formal production, if the materials and processes have changed significantly, it may affect the product performance; b) When the normal production is stopped, every half a generation
d) When the production is resumed after a long-term suspension
c When the factory inspection results are significantly different from the results of the last hazardous characteristics inspection: the national quality supervision agency proposes to conduct hazardous characteristics inspection. 6.3 Determination of regulations
Hazard level
GB19-52—204
Packaging classification
Open frequency development hazard
General hazard
Low hazard
Test according to 5.1 to 3.2 of this standard, and define the hazardous characteristics of the compound according to the test results and the requirements of 5.3 and 5.1 of this standard, and determine the category and hazard level of the oxidizing substance, which should be combined with the requirements of Section 4 of this standard.1. Prepare standard mixtures of potassium standard substance No. 31 and fiber. Prepare test mixtures No. 30 and fiber respectively. Each test mixture should be prepared separately and used as soon as possible. The test mixture should be suitable for mechanical mixing.
5.1.4.2 Use a cone-shaped mold and make the mixture into a truncated circular body with a bottom diameter of 7 mm. Cover the solid chemical test point at an ambient temperature of 15 to 25°C.
5.1.4.3. Turn on the power of the solid oxide tester. Keep the power on for 5 minutes. Check whether the mixture ignites and burns. If the mixture burns within 3 minutes, terminate the test. The main reaction (such as ignition, burning or flameless burning) is terminated from the time the power is turned on. As the combustion time of the mixture, the time reaction after the main reaction, such as sparks or popping, should not be considered. If the tube breaks during the test, the test shall be restarted unless the failure to break clearly indicates that the test results will not be affected.
5.1.4.4 Each test item is subjected to five tests based on a standard mixture of the material: 5.2 Test for hazardous properties of liquid oxidants
5.2.1 Test purpose
The oxidizing capacity of a liquid material shall be determined by determining its potential to increase the burning rate or burning intensity of a combustible material when fully mixed with the combustible material or to form an incendiary mixture. 5.2.2 Number of samples and sample preparation
5.2.2.1 Take 50g of representative material for special inspection of dangerous goods 5.2.2.2 Preparation of carbon fiber filaments: Carbon fiber filaments with a mass fraction of 70% and a thickness of 25mm should be put into a drying book (section "Huan white"). After cooling to a constant mass fraction (at least 4h), the content of nitrite should be less than 0.:%. If necessary, the dry burning time can be extended. 5.2.2.3 Use high acid with a mass fraction of [0%, sodium nitrate with a mass fraction of 10% and nitric acid with a mass fraction of 65% to avoid GR 19452-2004
liquid as the cup material. According to the ratio required by the test, prepare the standard compound, V, and if the test is a saturated solution, prepare
5.2.2.4 Prepare the test compound according to the ratio required by the test. 5.2.3 Tester and equipment
5.2.3.1 System pressure container: more combined with the standard manual on the transport of dangerous goods and standard manual 3 (4th edition). 5.2.3.2 Ignition system includes a 2 = cm nickel / life war, 3.61m1 diameter, resistance 0.850/m. A 5m diameter rod is used to hold the gold disease. The wire is in the shape of a wire diagram and connected to the ignition electrode after combustion. The distance between the bottom of the pressure sensor and the bottom of the ignition wire should be 2mm. If the electrode is not regulated, the ignition wire terminals between the top and the bottom of the ignition wire should be separated from the insulation layer. The metal wire is heated by a direct current source capable of supplying at least 10A. 5.2.4 Test method
5.2.4.1 Place the equipment equipped with a pressure sensor and a heating system without a ignition plug at one end. Place the liquid and 2.3 mm thick sample in a glass stirring chamber. For safety, the stirring should be done before the operator and the mixture are stirred. (If the mixture ignites easily during mixing or filling, no test is required.) 5.2.4.2 Cut the mixture into containers in small batches and tap gently, ensuring that the mixture is concentrated around the ignition wire and in close contact with it. The wires must not be bent during filling. Hold the clamps tightly. 5.2.4.3 Move the container of mixture to the ignition support, place it in a suitable explosion-proof ventilated ignition room, connect the power supply to the ignition pump, and pass a current of 10A. The time from the start of mixing to the power supply should be approximately 11 minutes. 5.2.4.4 The signal generated by the force sensor can be The evaluation shall be recorded on a suitable system which can permanently record the time/pressure diagram (e.g. transient recorder in combination with a chart recorder). Heat the compound to prevent cracking or at least 60°C. If there is no cracking at the cracking point, the compound shall be carefully dismantled after cooling and measures shall be taken to prevent further damage. 5.2.4.5 The complex and standard strength metal shall be tested three times at each test period, with the operating pressure ranging from 6%0 kHa to 2070 kHa gauge pressure, and the classification shall be based on the time required. 5.3 Criteria for determination
5.3.1 If any of the following conditions is met, it shall be determined to be an intermetallic oxide in 5.1. a) The average combustion time of test mixtures I and II shall be equal to or less than the average combustion time of the standard mixture. For example: a) Test mixtures 1 and II can ignite and burn respectively. If one of the following conditions is met, they are judged as 5.1 modified oxides: 5.3.2:
test mixture I can ignite;
) The average combustion time of the test mixture when the pressure rises from 6P (surface pressure) to 2070Pa is equal to or less than the average combustion time of the standard mixture. 5.4 Hazard level
According to the technical standards 5.1 and 5.2, the three oxides are classified into hazard levels according to Table 1: Table 1 Hazard level classification
Original compounds
|The average combustion time of the mixture or the average energy of the mixture is less than the standard energy time of the mixture,
The average measured energy time of the mixture or the average energy time of the mixture is less than the standard energy time of the mixture, and the average measured ... Regular season system
Three are general hazard control
There are legal risks
Packing specifications
In oxygen mining
6 Inspection specifications
Table 1 (continued)
Test supervision
Test mud will be carefully carried out when spontaneous combustion occurs, or the average time of the pregnancy test is small. The test mud platform, the level of the bed, the time or the small pregnancy standard The average pressure rise time of the whole test mud platform cannot meet the requirements of Class 1 packaging. The average pressure rise time of the whole test mud platform is very strict or the average pressure rise time of the whole test mud platform cannot meet the requirements of Class 1 packaging. The inspection items are inspected according to the key items in Chapter 4 and Chapter 5 of this standard. 6.2 Recording of hazardous characteristics inspection When one of the following situations occurs, the hazardous characteristics should be inspected: a) New products are put into production or old products are put into production. When the product is changed: after the formal production, if the materials and processes have changed significantly, it may affect the product performance; b) When the normal production is stopped, every half a generation
d) When the production is resumed after a long-term suspension
c When the factory inspection results are significantly different from the results of the last hazardous characteristics inspection: the national quality supervision agency proposes to conduct hazardous characteristics inspection. 6.3 Determination of regulations
Hazard level
GB19-52—204
Packaging classification
Open frequency development hazard
General hazard
Low hazard
Test according to 5.1 to 3.2 of this standard, and define the hazardous characteristics of the compound according to the test results and the requirements of 5.3 and 5.1 of this standard, and determine the category and hazard level of the oxidizing substance, which should be combined with the requirements of Section 4 of this standard.1. Prepare standard mixtures of potassium standard substance No. 31 and fiber. Prepare test mixtures No. 30 and fiber respectively. Each test mixture should be prepared separately and used as soon as possible. The test mixture should be suitable for mechanical mixing.
5.1.4.2 Use a cone-shaped mold and make the mixture into a truncated circular body with a bottom diameter of 7 mm. Cover the solid chemical test point at an ambient temperature of 15 to 25°C.
5.1.4.3. Turn on the power of the solid oxide tester. Keep the power on for 5 minutes. Check whether the mixture ignites and burns. If the mixture burns within 3 minutes, terminate the test. The main reaction (such as ignition, burning or flameless burning) is terminated from the time the power is turned on. As the combustion time of the mixture, the time reaction after the main reaction, such as sparks or popping, should not be considered. If the tube breaks during the test, the test shall be restarted unless the failure to break clearly indicates that the test results will not be affected.
5.1.4.4 Each test item is subjected to five tests based on a standard mixture of the material: 5.2 Test for hazardous properties of liquid oxidants
5.2.1 Test purpose
The oxidizing capacity of a liquid material shall be determined by determining its potential to increase the burning rate or burning intensity of a combustible material when fully mixed with the combustible material or to form an incendiary mixture. 5.2.2 Number of samples and sample preparation
5.2.2.1 Take 50g of representative material for special inspection of dangerous goods 5.2.2.2 Preparation of carbon fiber filaments: Carbon fiber filaments with a mass fraction of 70% and a thickness of 25mm should be put into a drying book (section "Huan white"). After cooling to a constant mass fraction (at least 4h), the content of nitrite should be less than 0.:%. If necessary, the dry burning time can be extended. 5.2.2.3 Use high acid with a mass fraction of [0%, sodium nitrate with a mass fraction of 10% and nitric acid with a mass fraction of 65% to avoid GR 19452-2004
liquid as the cup material. According to the ratio required by the test, prepare the standard compound, V, and if the test is a saturated solution, prepare
5.2.2.4 Prepare the test compound according to the ratio required by the test. 5.2.3 Tester and equipment
5.2.3.1 System pressure container: more combined with the standard manual on the transport of dangerous goods and standard manual 3 (4th edition). 5.2.3.2 Ignition system includes a 2 = cm nickel / life war, 3.61m1 diameter, resistance 0.850/m. A 5m diameter rod is used to hold the gold disease. The wire is in the shape of a wire diagram and connected to the ignition electrode after combustion. The distance between the bottom of the pressure sensor and the bottom of the ignition wire should be 2mm. If the electrode is not regulated, the ignition wire terminals between the top and the bottom of the ignition wire should be separated from the insulation layer. The metal wire is heated by a direct current source capable of supplying at least 10A. 5.2.4 Test method
5.2.4.1 Place the equipment equipped with a pressure sensor and a heating system without a ignition plug at one end. Place the liquid and 2.3 mm thick sample in a glass stirring chamber. For safety, the stirring should be done before the operator and the mixture are stirred. (If the mixture ignites easily during mixing or filling, no test is required.) 5.2.4.2 Cut the mixture into containers in small batches and tap gently, ensuring that the mixture is concentrated around the ignition wire and in close contact with it. The wires must not be bent during filling. Hold the clamps tightly. 5.2.4.3 Move the container of mixture to the ignition support, place it in a suitable explosion-proof ventilated ignition room, connect the power supply to the ignition pump, and pass a current of 10A. The time from the start of mixing to the power supply should be approximately 11 minutes. 5.2.4.4 The signal generated by the force sensor can be The evaluation shall be recorded on a suitable system which can permanently record the time/pressure diagram (e.g. transient recorder in combination with a chart recorder). Heat the compound to prevent cracking or at least 60°C. If there is no cracking at the cracking point, the compound shall be carefully dismantled after cooling and measures shall be taken to prevent further damage. 5.2.4.5 The complex and standard strength metal shall be tested three times at each test period, with the operating pressure ranging from 6%0 kHa to 2070 kHa gauge pressure, and the classification shall be based on the time required. 5.3 Criteria for determination
5.3.1 If any of the following conditions is met, it shall be determined to be an intermetallic oxide in 5.1. a) The average combustion time of test mixtures I and II shall be equal to or less than the average combustion time of the standard mixture. For example: a) Test mixtures 1 and II can ignite and burn respectively. If one of the following conditions is met, they are judged as 5.1 modified oxides: 5.3.2:
test mixture I can ignite;
) The average combustion time of the test mixture when the pressure rises from 6P (surface pressure) to 2070Pa is equal to or less than the average combustion time of the standard mixture. 5.4 Hazard level
According to the technical standards 5.1 and 5.2, the three oxides are classified into hazard levels according to Table 1: Table 1 Hazard level classification
Original compounds
|The average combustion time of the mixture or the average energy of the mixture is less than the standard energy time of the mixture,
The average measured energy time of the mixture or the average energy time of the mixture is less than the standard energy time of the mixture, and the average measured ... Regular season system
Three are general hazard control
There are legal risks
Packing specifications
In oxygen mining
6 Inspection specifications
Table 1 (continued)
Test supervision
Test mud will be carefully carried out when spontaneous combustion occurs, or the average time of the pregnancy test is small. The test mud platform, the level of the bed, the time or the small pregnancy standard The average pressure rise time of the whole test mud platform cannot meet the requirements of Class 1 packaging. The average pressure rise time of the whole test mud platform is very strict or the average pressure rise time of the whole test mud platform cannot meet the requirements of Class 1 packaging. The inspection items are inspected according to the key items in Chapter 4 and Chapter 5 of this standard. 6.2 Recording of hazardous characteristics inspection When one of the following situations occurs, the hazardous characteristics should be inspected: a) New products are put into production or old products are put into production. When the product is changed: after the formal production, if the materials and processes have changed significantly, it may affect the product performance; b) When the normal production is stopped, every half a generation
d) When the production is resumed after a long-term suspension
c When the factory inspection results are significantly different from the results of the last hazardous characteristics inspection: the national quality supervision agency proposes to conduct hazardous characteristics inspection. 6.3 Determination of regulations
Hazard level
GB19-52—204
Packaging classification
Open frequency development hazard
General hazard
Low hazard
Test according to 5.1 to 3.2 of this standard, and define the hazardous characteristics of the compound according to the test results and the requirements of 5.3 and 5.1 of this standard, and determine the category and hazard level of the oxidizing substance, which should be combined with the requirements of Section 4 of this standard.2 Preparation of carbon fiber filaments: Carbon fiber filaments of 7 degrees should not be more than 25mm and should be put into drying (section) after being blasted to constant mass (at least 4h) at 105℃ and then cooled to a constant mass. The content of nitrite should be less than 0.0%. If necessary, the dry burning time can be extended. 5.2.2.3 Use high acid with a mass fraction of [0%, sodium nitrate with a mass fraction of 10% and nitric acid with a mass fraction of 65% 19452-2004
liquid as the cup material. According to the ratio required by the test, prepare the standard required compound, V, and if the test is a saturated solution, prepare
5.2.2.4 Prepare the test compound according to the ratio required by the test. 5.2.3 Tester and equipment
5.2.3.1 System pressure container: more combined with the standard manual on the transport of dangerous goods and standard manual 3 (4th edition). 5.2.3.2 Ignition system includes a 2 = cm nickel / life war, 3.61m1 diameter, resistance 0.850/m. A 5m diameter rod is used to make the gold disease into a wire shape, and then connected to the ignition electrode. The distance between the bottom of the pressure container and the ignition line should be 2m m. If the electrodes are not regulated, the ignition wire terminals between the inline and the bottom of the container shall be insulated from the sheath. The wires shall be heated with a direct current capable of supplying at least 10A. 5.2.4 Test Method
5.2.4.1 Place the ignition plug at one end of a pressure-sensitive device equipped with a heat transfer system. Place 2.3 mm thick liquid in a container and stir with a glass. For safety, stir the mixture carefully before mixing. (If the mixture ignites during mixing or filling, no test is required.) 5.2.4.2 Place the mixture in small batches into the container and tap gently, ensuring that the mixture is concentrated around the ignition wire and kept in close contact with it. The wires must not be bent during mixing. Tighten the clamps tightly. 5.2.4.3 Move the container of mixture to the ignition support, place it in a suitable explosion-proof ventilated ignition room, connect the power supply to the ignition laser and apply a 10A current. The time from the start of mixing to the switch-on should be approximately 11 minutes. 5.2.4.4 The signal from the force sensor shall be recorded on a suitable system that can evaluate and permanently record the time/pressure graph (e.g. instantaneous recorder combined with a chart recorder). Heat the mixture until it cracks or is at least 60°C. If there is no crack at the explosion point, the equipment shall be carefully disassembled after the mixture has cooled and measures to prevent further damage shall be taken. 5.2.4.5 The complex and standard metal shall be checked at regular intervals. Carry out three tests, and the time required for the pressure to decrease from 6% of the gauge pressure to 2070 kHa is used for classification. 5.3 Judgment criteria
5.3.1 If one of the following conditions is met, it is judged as an intermediate oxide in item 5.1. a) The average combustion time of test compound I and II should be equal to or less than the average combustion time of the standard mixture. For example: a) Test mixtures 1 and Ⅱ can ignite and burn respectively. If one of the following conditions is met, it is judged as an intermediate oxide in item 5.1: 5.3.2: bZxz.net
Test compound I can ignite;
) The average combustion time of the test compound when the gauge pressure rises from 6P (gauge pressure) to 2070Pa is equal to or less than the average combustion time of the standard mixture. 5.4 Hazard level
According to the technical standards 5.1 and 5.2, the three oxides are classified into hazard levels according to Table 1: Table 1 Hazard level classification
Original compounds
|The average combustion time of the mixture or the average energy of the mixture is less than the standard energy time of the mixture,
The average measured energy time of the mixture or the average energy time of the mixture is less than the standard energy time of the mixture, and the average measured ... Regular season system
Three are general hazard control
There are legal risks
Packing specifications
In oxygen mining
6 Inspection specifications
Table 1 (continued)
Test supervision
Test mud will be carefully carried out when spontaneous combustion occurs, or the average time of the pregnancy test is small. The test mud platform, the level of the bed, the time or the small pregnancy standard The average pressure rise time of the whole test mud platform cannot meet the requirements of Class 1 packaging. The average pressure rise time of the whole test mud platform is very strict or the average pressure rise time of the whole test mud platform cannot meet the requirements of Class 1 packaging. The inspection items are inspected according to the key items in Chapter 4 and Chapter 5 of this standard. 6.2 Recording of hazardous characteristics inspection When one of the following situations occurs, the hazardous characteristics should be inspected: a) New products are put into production or old products are put into production. When the product is changed: after the formal production, if the materials and processes have changed significantly, it may affect the product performance; b) When the normal production is stopped, every half a generation
d) When the production is resumed after a long-term suspension
c When the factory inspection results are significantly different from the results of the last hazardous characteristics inspection: the national quality supervision agency proposes to conduct hazardous characteristics inspection. 6.3 Determination of regulations
Hazard level
GB19-52—204
Packaging classification
Open frequency development hazard
General hazard
Low hazard
Test according to 5.1 to 3.2 of this standard, and define the hazardous characteristics of the compound according to the test results and the requirements of 5.3 and 5.1 of this standard, and determine the category and hazard level of the oxidizing substance, which should be combined with the requirements of Section 4 of this standard.2 Preparation of carbon fiber filaments: Carbon fiber filaments of 7 degrees should not be more than 25mm and should be put into drying (section) after being blasted to constant mass (at least 4h) at 105℃ and then cooled to a constant mass. The content of nitrite should be less than 0.0%. If necessary, the dry burning time can be extended. 5.2.2.3 Use high acid with a mass fraction of [0%, sodium nitrate with a mass fraction of 10% and nitric acid with a mass fraction of 65% 19452-2004
liquid as the cup material. According to the ratio required by the test, prepare the standard required compound, V, and if the test is a saturated solution, prepare
5.2.2.4 Prepare the test compound according to the ratio required by the test. 5.2.3 Tester and equipment
5.2.3.1 System pressure container: more combined with the standard manual on the transport of dangerous goods and standard manual 3 (4th edition). 5.2.3.2 Ignition system includes a 2 = cm nickel / life war, 3.61m1 diameter, resistance 0.850/m. A 5m diameter rod is used to make the gold disease into a wire shape, and then connected to the ignition electrode. The distance between the bottom of the pressure container and the ignition line should be 2m m. If the electrodes are not regulated, the ignition wire terminals between the inline and the bottom of the container shall be insulated from the sheath. The wires shall be heated with a direct current capable of supplying at least 10A. 5.2.4 Test Method
5.2.4.1 Place the ignition plug at one end of a pressure-sensitive device equipped with a heat transfer system. Place 2.3 mm thick liquid in a container and stir with a glass. For safety, stir the mixture carefully before mixing. (If the mixture ignites during mixing or filling, no test is required.) 5.2.4.2 Place the mixture in small batches into the container and tap gently, ensuring that the mixture is concentrated around the ignition wire and kept in close contact with it. The wires must not be bent during mixing. Tighten the clamps tightly. 5.2.4.3 Move the container of mixture to the ignition support, place it in a suitable explosion-proof ventilated ignition room, connect the power supply to the ignition laser and apply a 10A current. The time from the start of mixing to the switch-on should be approximately 11 minutes. 5.2.4.4 The signal from the force sensor shall be recorded on a suitable system that can evaluate and permanently record the time/pressure graph (e.g. instantaneous recorder combined with a chart recorder). Heat the mixture until it cracks or is at least 60°C. If there is no crack at the explosion point, the equipment shall be carefully disassembled after the mixture has cooled and measures to prevent further damage shall be taken. 5.2.4.5 The complex and standard metal shall be checked at regular intervals. Carry out three tests, and the time required for the pressure to decrease from 6% of the gauge pressure to 2070 kHa is used for classification. 5.3 Judgment criteria
5.3.1 If one of the following conditions is met, it is judged as an intermediate oxide in item 5.1. a) The average combustion time of test compound I and II should be equal to or less than the average combustion time of the standard mixture. For example: a) Test mixtures 1 and Ⅱ can ignite and burn respectively. If one of the following conditions is met, it is judged as an intermediate oxide in item 5.1: 5.3.2:
Test compound I can ignite;
) The average combustion time of the test compound when the gauge pressure rises from 6P (gauge pressure) to 2070Pa is equal to or less than the average combustion time of the standard mixture. 5.4 Hazard level
According to the technical standards 5.1 and 5.2, the three oxides are classified into hazard levels according to Table 1: Table 1 Hazard level classification
Original compounds
|The average combustion time of the mixture or the average energy of the mixture is less than the standard energy time of the mixture,
The average measured energy time of the mixture or the average energy time of the mixture is less than the standard energy time of the mixture, and the average measured ... Regular season system
Three are general hazard control
There are legal risks
Packing specifications
In oxygen mining
6 Inspection specifications
Table 1 (continued)
Test supervision
Test mud will be carefully carried out when spontaneous combustion occurs, or the average time of the pregnancy test is small. The test mud platform, the level of the bed, the time or the small pregnancy standard The average pressure rise time of the whole test mud platform cannot meet the requirements of Class 1 packaging. The average pressure rise time of the whole test mud platform is very strict or the average pressure rise time of the whole test mud platform cannot meet the requirements of Class 1 packaging. The inspection items are inspected according to the key items in Chapter 4 and Chapter 5 of this standard. 6.2 Recording of hazardous characteristics inspection When one of the following situations occurs, the hazardous characteristics should be inspected: a) New products are put into production or old products are put into production. When the product is changed: after the formal production, if the materials and processes have changed significantly, it may affect the product performance; b) When the normal production is stopped, every half a generation
d) When the production is resumed after a long-term suspension
c When the factory inspection results are significantly different from the results of the last hazardous characteristics inspection: the national quality supervision agency proposes to conduct hazardous characteristics inspection. 6.3 Determination of regulations
Hazard level
GB19-52—204
Packaging classification
Open frequency development hazard
General hazard
Low hazard
Test according to 5.1 to 3.2 of this standard, and define the hazardous characteristics of the compound according to the test results and the requirements of 5.3 and 5.1 of this standard, and determine the category and hazard level of the oxidizing substance, which should be combined with the requirements of Section 4 of this standard.
Test the alloy steel I can ignite;
) Test the average combustion time of the compound when the pressure rises from 6P (table) to 2070Pa or less than the average combustion time of the standard mixture. 5.4 Hazard level
According to the technical standards 5.1 and .2, the three oxides are determined by the test in accordance with Table 1: Table 1 Hazard level classification
Original compound
|The average combustion time of the mixture or is less than the average combustion time of the standard compound,
The average measured time of the compound or is less than the average combustion time of the standard compound, can only meet the safety requirements of Class 1. The average burning time of the compound 1 or 1 is less than the average burning time of the standard compound 1. The class and class can not be selected. Regular season system
Three are general hazard control
There are legal risks
Packing specifications
In oxygen mining
6 Inspection specifications
Table 1 (continued)
Test supervision
Test mud will be carefully carried out when spontaneous combustion occurs, or the average time of the pregnancy test is small. The test mud platform, the level of the bed, the time or the small pregnancy standard The average pressure rise time of the whole test mud platform cannot meet the requirements of Class 1 packaging. The average pressure rise time of the whole test mud platform is very strict or the average pressure rise time of the whole test mud platform cannot meet the requirements of Class 1 packaging. The inspection items are inspected according to the key items in Chapter 4 and Chapter 5 of this standard. 6.2 Recording of hazardous characteristics inspection When one of the following situations occurs, the hazardous characteristics should be inspected: a) New products are put into production or old products are put into production. When the product is changed: after the formal production, if the materials and processes have changed significantly, it may affect the product performance; b) When the normal production is stopped, every half a generation
d) When the production is resumed after a long-term suspension
c When the factory inspection results are significantly different from the results of the last hazardous characteristics inspection: the national quality supervision agency proposes to conduct hazardous characteristics inspection. 6.3 Determination of regulations
Hazard level
GB19-52—204
Packaging classification
Open frequency development hazard
General hazard
Low hazard
Test according to 5.1 to 3.2 of this standard, and define the hazardous characteristics of the compound according to the test results and the requirements of 5.3 and 5.1 of this standard, and determine the category and hazard level of the oxidizing substance, which should be combined with the requirements of Section 4 of this standard.
Test the alloy steel I can ignite;
) Test the average combustion time of the compound when the pressure rises from 6P (table) to 2070Pa or less than the average combustion time of the standard mixture. 5.4 Hazard level
According to the technical standards 5.1 and .2, the three oxides are determined by the test in accordance with Table 1: Table 1 Hazard level classification
Original compound
|The average combustion time of the mixture or is less than the average combustion time of the standard compound,
The average measured time of the compound or is less than the average combustion time of the standard compound, can only meet the safety requirements of Class 1. The average burning time of the compound 1 or 1 is less than the average burning time of the standard compound 1. The class and class can not be selected. Regular season system
Three are general hazard control
There are legal risks
Packing specifications
In oxygen mining
6 Inspection specifications
Table 1 (continued)
Test supervision
Test mud will be carefully carried out when spontaneous combustion occurs, or the average time of the pregnancy test is small. The test mud platform, the level of the bed, the time or the small pregnancy standard The average pressure rise time of the whole test mud platform cannot meet the requirements of Class 1 packaging. The average pressure rise time of the whole test mud platform is very strict or the average pressure rise time of the whole test mud platform cannot meet the requirements of Class 1 packaging. The inspection items are inspected according to the key items in Chapter 4 and Chapter 5 of this standard. 6.2 Recording of hazardous characteristics inspection When one of the following situations occurs, the hazardous characteristics should be inspected: a) New products are put into production or old products are put into production. When the product is changed: after the formal production, if the materials and processes have changed significantly, it may affect the product performance; b) When the normal production is stopped, every half a generation
d) When the production is resumed after a long-term suspension
c When the factory inspection results are significantly different from the results of the last hazardous characteristics inspection: the national quality supervision agency proposes to conduct hazardous characteristics inspection. 6.3 Determination of regulations
Hazard level
GB19-52—204
Packaging classification
Open frequency development hazard
General hazard
Low hazard
Test according to 5.1 to 3.2 of this standard, and define the hazardous characteristics of the compound according to the test results and the requirements of 5.3 and 5.1 of this standard, and determine the category and hazard level of the oxidizing substance, which should be combined with the requirements of Section 4 of this standard.
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.