GB/T 14174-2012 Large-caliber liquid nitrogen container GB/T14174-2012 Standard compression package decompression password: www.bzxz.net
1.1 This standard specifies the terms and definitions, classification, technical requirements, test methods, inspection rules and marking, packaging, storage and transportation requirements of austenitic stainless steel large-caliber liquid nitrogen containers (hereinafter referred to as containers). 1.2 This standard applies to containers with high vacuum multi-layer insulation for storing liquid nitrogen at normal pressure, with an effective volume not exceeding 1830L and a diameter not less than 315mm. 1.3 This standard does not apply to containers with the following scope of use: ——Storage of liquid nitrogen under pressure; ——Storage of liquid oxygen and other cryogenic liquids.
This standard was drafted based on the rules given in GB/T1.1-2009.
This standard replaces GB14174-1993. Compared with GB14174-1993, the following changes are mainly included:
———In Chapter 1 "Scope", the provisions on inapplicable scope are added;
———Chapter 3 "Terms and Definitions" is added, and appropriate additions, deletions and modifications are made on the basis of the original Appendix A (Supplement) "Main Terms and Terms of Large-caliber Liquid Nitrogen Containers";
———The original Chapter 3 "Product Models and Specifications" is changed to Chapter 4 "Classification", and large-caliber liquid nitrogen containers are divided into two categories: straight-mouth type and side-mouth type;
———The original Figure 1 "Product Structure Schematic" is modified and changed to "Straight-mouth Container Structure Schematic";
———Figure 2 "Side-mouth Container Structure Schematic" is added;
———The original Chapter 4 "Technical Requirements" is changed to Chapter 5, and the technical requirements for side-mouth products are added;
———Added 5.1 “General requirements”;
———Added 5.2 “Materials and external components”, supplemented the requirements for insulation materials and welding materials;
———Added 5.3 “Design”;
———Cancelled the provisions on product outer diameter, height and empty weight in the original Table 1;
———Properly modified the product daily evaporation rate index in the original Table 1, and added the static evaporation rate index of the skewed product; ———
The original Table 2 was changed to Table 4 “Allowable deviation of the inner diameter of the neck tube”, and the provisions on the outer diameter of the plug in the original Table 2 were cancelled; ———
Properly supplemented the requirements of 5.4 “Manufacturing”;
———Adjusted the measurement method of 6.1 “Effective volume”;
———Added the measurement method of 6.3 “Interlayer vacuum degree”;
———The measurement method of 6.4 "vacuum interlayer leakage rate" is clarified;
———The original 6.2 "classification of non-conformity" is cancelled;
———"Type test" is adopted to replace the original "periodic inspection";
———Necessary supplementary provisions are made for 8.2 "packaging".
This standard is proposed and managed by the National Technical Committee for Standardization of Boiler and Pressure Vessels (SAC/TC262).
The drafting units of this standard: Chengdu Jinfeng Liquid Nitrogen Container Co., Ltd., Shanghai Gas Industry Association, Shanghai Jiaotong University, Shenyang Xinguang Cryogenic Container Co., Ltd., Leshan Dongya Electromechanical Industry and Trade Company, China Special Equipment Testing and Research Institute, Shanghai Huayi Equipment Engineering Co., Ltd., National Cryogenic Container Quality Supervision and Inspection Center, Shanghai Special Equipment Supervision and Inspection Technology Research Institute.
The main drafters of this standard: Li Zongji, An Nian, Yu Tong, Lu Xuesheng, Liu Yuanming, Zhou Weiming, Chen Zhaohui, Wei Yongbiao, Zhang Yayu, Teng Junhua, Chen Lian.
The previous versions of the standards replaced by this standard are:
———GB14174—1993.
The following documents are indispensable for the application of this document. For all referenced documents with dates, only the versions with dates apply to this document. For all referenced documents without dates, the latest versions (including all amendments) apply to this document.
GB150.3 Pressure vessels Part 3: Design
GB/T191—2008 Pictorial markings for packaging, storage and transportation
GB/T3198—2010 Aluminum and aluminum alloy foil
GB/T3280—2007 Cold-rolled stainless steel sheets and strips
GB/T4237—2007 Hot-rolled stainless steel sheets and strips
GB/T6388—1986 Shipping and receiving marks for transport packaging
GB/T13550—1992 5A molecular sieves and their test methods
GB/T16958—2008 Biaxially oriented polyester film for packaging
GB/T18443.2 Test methods for performance of vacuum insulation cryogenic equipment Part 2: Vacuum degree measurement
GB/T18443.3 Performance test method for vacuum insulated cryogenic equipment Part 3: Leakage rate measurement
GB/T18443.5 Performance test method for vacuum insulated cryogenic equipment Part 5: Static evaporation rate measurement
GB/T18443.8 Performance test method for vacuum insulated cryogenic equipment Part 8: Volume measurement
GB24511 Stainless steel plates and strips for pressure equipment
HG/T2690—1995 13X molecular sieve
SN/T0273—2002 Inspection procedures for wooden boxes for transport packaging of import and export commodities

ICS 55. 120
National Standard of the People's Republic of China
GB/T14174—2012
Replaces GB14174—1993
Large caliber liquid nitrogen container
Large caliber liquid nitrogen container2012-12-31 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 July 1, 2013
This standard was drafted in accordance with the rules given in GB/T1.1—2009. This standard replaces GB 14174—1993. Compared with GB 14174—1993, the following changes are mainly made: In Chapter 1 "Scope", the provisions on inapplicable scope are added; GB/T 14174--2012
Added Chapter 3\Terms and Definitions", and made appropriate additions, deletions and modifications based on the original Appendix A (Supplement) "Main Terms of Large-caliber Liquid Nitrogen Containers"; the original Chapter 3 "Product Models and Specifications" was changed to Chapter 4\Classification" and the large-caliber liquid nitrogen containers were divided into two categories: straight-mouth type and side-mouth type;
The original Figure 1 "Product Structure Schematic" was modified and changed to "Straight-mouth Container Structure Schematic"; Figure 2 "Side-mouth Container Structure Schematic" was added; the original Chapter 4 "Technical Requirements" was changed to Chapter 5, and the technical requirements for side-mouth products were added: - Added 5.1\--General Requirements\;
- Added 5.2 "Materials and External Components", supplemented the requirements for insulation materials and welding materials; - Added 5. 3\Design\,
Cancel the provisions on product outer diameter, height and empty weight in the original Table 1: - Make appropriate modifications to the product daily evaporation rate index in the original Table 1, and add the static evaporation rate index of the eccentric type product; - Change the original Table 2 to Table 4 "Allowable deviation of the inner diameter of the neck tube", and cancel the provisions on the outer diameter of the plug in the original Table 2. Make appropriate supplements to the requirements of 5.4 "Manufacturing"; adjust the measurement method of 6.1 "Effective volume"; add the measurement method of 6.3 "Interlayer vacuum degree"; clarify the measurement method of 6.4 "Vacuum interlayer leakage rate", - Cancel the original 6.2 "Classification of unqualified"; Use "type test" instead of the original "periodic inspection"; Make necessary supplementary provisions for 8.2 "Packaging". This standard is proposed and managed by the National Technical Committee for Standardization of Boilers and Pressure Vessels (SAC/TC262). The drafting units of this standard are: Chengdu Jinfeng Liquid Nitrogen Container Co., Ltd., Shanghai Gas Industry Association, Shenyang Xinguang Cryogenic Container Co., Ltd. of Shanghai Jiaotong University, China Special Equipment Testing and Research Institute of Leshan Dongya Electromechanical Industry and Trade Company, Shanghai Huayi Equipment Engineering Co., Ltd., National Cryogenic Container Quality Supervision and Inspection Center, Shanghai Special Equipment Supervision and Inspection Technology Research Institute. The main drafters of this standard are Li Zongji, An Nian, Yu Bin, Lu Xuesheng, Liu Yuanming, Zhou Weiming, Chen Zhaohui, Wei Yongbiao, Zhang Yayu, Teng Junhua, and Chen Lian.
The previous versions of the standards replaced by this standard are: -GB141741993.
1 Scope
Large-caliber liquid nitrogen containers
GB/T14174—2012
1.1 This standard specifies the terms and definitions, classification, technical requirements, test methods, inspection rules and markings, packaging, storage and transportation requirements of large-caliber liquid nitrogen containers made of austenitic stainless steel (hereinafter referred to as containers). 1.2 This standard applies to containers with high vacuum multilayer insulation and an effective volume of no more than 1830L and a diameter of no less than 315mm for storing liquid nitrogen at normal pressure.
1.3 This standard does not apply to containers with the following usage: storage of liquid nitrogen under pressure;
storage of liquid oxygen and other cryogenic liquids.
2 Normative references
The following documents are indispensable for the application of this document. For all references with dates, only the versions with dates apply to this document. For all references without dates, the latest versions (including all amendments) apply to this document. GB150.3 Pressure vessels Part 3: Design GB/T191-2008 Packaging, storage and transportation marking GB/T3198-2010 Aluminum and aluminum alloy foil GB/T3280-2007 Stainless steel cold-rolled steel plate and strip GB/T4237-2007 Stainless steel hot-rolled steel plate and strip GB/T6388-1986 Transport packaging delivery and receipt marking GB/T13550-19925A Molecular sieves and their test methods GB/T16958-2008 Biaxially drawn polyester film for packaging GB/T18443.2 Vacuum insulation cryogenic equipment performance test method Part 2: Vacuum degree measurement GB/T 18443. 3 Vacuum insulation cryogenic equipment performance test method Part 3: Leakage rate measurement GB/T 18443.5
Performance test method of vacuum insulation cryogenic equipment Part 5: Measurement of static evaporation rate Performance test method of vacuum insulation cryogenic equipment GB/T 18443. 8
Part 8: Volume measurement
GB24511 Stainless steel plates and strips for pressure equipment HG/T2690-199513X molecular sieve
SN/T0273--2002 Inspection procedure for wooden boxes for transport packaging of import and export commodities 3 Terms and definitions
The following terms and definitions apply to this document. 3.1
Interspace
The enclosed space formed between the inner liner and the outer shell of the container. 3.2
High vacuum multi-layer insulation highyacuummulti-layerinsulation The insulation layer space is provided with multiple layers of heat radiation shields separated by insulating materials, and a high vacuum is drawn to form the insulation method. GB/T 14174—2012
Nominal volume
The volume specified by the container model.
Effective volume
The maximum volume of liquid allowed to be contained in the container under use. 3.5
Calibre
The inner diameter of the neck tube.
Static evaporation rate The percentage of the mass of liquid nitrogen lost by natural evaporation within 24 hours after the container reaches thermal equilibrium at the specified filling rate and is left to stand, and the mass of liquid nitrogen in the effective volume of the container is converted into the evaporation rate value under standard conditions (atmospheric pressure 101.325KPa, ambient temperature 20℃): 3.7
Vacuum interlayer leakage rate leakagecofvacuuminterspace The amount of gas leaking into the vacuum interlayer per unit time, 3.8
Vacuum design life The normal service life of the container interlayer vacuum determined during design, and its value is the time interval from the time the container is used after leaving the factory to the time when the static evaporation rate is higher than the upper limit of the standard index by 60%.
Interlayer vacuum degree interspaced vacuumunidegree The absolute pressure of the gas in the interlayer space of the container. 3.10
Filling rate filling rate
The percentage of the volume of liquid nitrogen contained in the container to the internal geometric volume. 4 Classification
4.1 Containers are divided into two categories: straight-mouth type and side-mouth type. 4.2 The compilation of container models shall comply with the following provisions: YDD-O-
Side-mouth container code (no note for straight-mouth containers) Container diameter, in millimeters (mm)
Container nominal volume, in liters (L)
"Large-caliber liquid nitrogen container" Chinese pinyin abbreviation Example 1: YDD350-530 represents a straight-mouth container with a nominal volume of 350L and a diameter of 530mm. Example 2: YDD-G30-400P represents a side-mouth piercer with a nominal volume of 6301 and a diameter of 400mm. 4.3 Schematic diagram of container structure
4.3.1 See Figure 1 for the schematic diagram of the straight-mouth piercer structure. 2
4. 3.2 The schematic diagram of the structure of the side-mouth container is shown in Figure 212
Explanation:
Lifting ring;
2-Vacuum sealing plug
3-Neck tube;
4-Plug
Multi-layer insulation:
Lifting cylinder;
7 Casters;
Adsorbent;
A fixed tray:
An inner tank,
An outer shell;
12-Liquid nitrogen level monitor.
Schematic diagram of the structure of a straight-mouth container
GB/T14174—2012
GB/T 141742012
Description:
Salt plug:
Neck tube,
Outer shell;
Multi-layer insulation,
Inner liner;
Lifting cylinder,
Adsorbent:
Foot cover:
Revolving tray:
Vacuum sealing plug,
Lifting ring;
12-—Liquid nitrogen injection port
13: Operating platform
—Liquid nitrogen level monitor.
5 Technical requirements
General requirements
Figure 2 Schematic diagram of the structure of the skewed mouth container
5.1.1 The ambient temperature of the container is -20℃～50℃. 5.t.2 The materials in contact with liquid nitrogen should be compatible with liquid nitrogen. 5.1.3 The materials and purchased parts used in the container should have a quality certificate or a certificate of conformity. 5.2 Materials and purchased parts
5. 2. 1 Liner and shell
The austenitic stainless steel plate used for the liner and shell should comply with the provisions of GB/T3280-2007 or GB/T1237-2007.GB24511. 5.2.2 Insulation layer
5.2.2.1 The reflective material used for the insulation layer should be aluminum foil or double-sided aluminum-plated polyester film. Aluminum foil shall comply with the provisions of GB/T3198-2003, and the double-sided aluminum-plated polyester film substrate shall comply with the provisions of GB/T16958-1997. GB/T14174-2012
5.2.2.2 Glass fiber cloth and fiber paper used for insulation layer shall be made of materials with low thermal conductivity and low gas release rate, and the combustible content of glass fiber shall not exceed 0.20% (mass ratio).
5.2. 3 Adsorbent
5.2.3.1 Adsorbent shall be activated carbon or sieve with good adsorption performance under use. 5.2.3.2 The sieve shall comply with the provisions of GB/T13550-1992 or HG/T2690-1995. 5.2.4 Welding materials
Welding wire shall comply with the provisions of the corresponding standards and have clear and firm markings. 5.2.5 Other materials
5.2.5.1 The neck tube, lifting cylinder and tray should be made of austenitic stainless steel or other materials that can withstand the boiling point of liquid nitrogen. 5.2.5.2 The plug body should be made of hard foam plastics such as polyvinyl chloride or polyurethane with low thermal conductivity and low water absorption. 5.2.6 Purchased parts
5,2.6.1 The liquid level gauge should display accurately and have a solid structure. 5.2.6.2 The casters should be made of wear-resistant and high-strength materials. 5.3 Design
When designing a container, loads such as liquid column, dead weight, temperature difference, transportation and vibration should be considered. The calculation of the strength and stability of the inner liner and outer shell should comply with the regulations of GB150.3, and the external pressure should be 0.1MPa. The internal support of the container should be strength calculated to meet the strength requirements of the material. The container should be calculated for thermal insulation performance and meet the design requirements. The vacuum sealing plug shall meet the following requirements:
It shall adopt a re-openable structure;
b) Its diameter shall meet the requirements of the safe discharge volume of the vacuum layer; The discharge pressure shall not exceed 0.07MPa, and its discharge capacity shall be sufficient to limit the pressure of the interlayer to no more than 0.1MPa. 5. 3. 6
The effective volume of the container shall comply with the provisions of Table 1 or Table 2, and the allowable deviation shall not exceed ±5%. 5. 3.7
The static evaporation rate of the container shall comply with the provisions of Table 1 or Table 2. Table 1 Effective volume and static evaporation rate of straight-mouth type container Container type
YTD-250-4.00
YDD-350-530
YDD-450-630
YDD-350-730
YDD-500-730
Effective volume
Static evaporation rate
GB/T 14174—2012
Container model
YDD-230 315P
YDD-300-315P
YDD-350-315P
YDD-400-400P
YDD-500-400P
YDD-550-400P
400P
YDD-850-530F
YDD-1050-530F
YDD-1300-530F
YDD-1600-630P
YDD-1800-630F
Table 2 Effective volume and static evaporation rate of eccentric-mouth container Effective volume
The leakage rate of the vacuum interlayer of the container shall comply with the provisions of Table 3. 5.3.9 The allowable deviation of the inner diameter of the neck tube shall comply with the provisions of Table 4. 5.3.10
An operating platform shall be set for eccentric-mouth containers, and its operating platform shall meet the use requirements. Static evaporation rate
When the height of the neck of the container from the ground reaches or exceeds 1.3m, a stepped foot pedal shall be set. The casters set on the container shall be flexible and have a locking device. The connection of the cover and the plug body should be firm and reliable, and a locking device should be provided. The allowable deviation between the temperature probe of the liquid level monitor and the liquid level height is ±10mm. 5.3.15
The design and configuration of the equipment can be made according to the requirements of the purchaser. 5.3.16
After the container is filled with liquid nitrogen for precooling and reaches thermal equilibrium, the vacuum degree of the interlayer should not be less than 5×10-2Pa. The vacuum design life of the container should not be less than 5 years. Table 3 Leakage rate of vacuum interlayer of container
Nominal volume
230400
>400～600
>600-1 000
>1 000-1 800
Leakage rate of vacuum interlayer
Pa·m'/s
S1.0X10-1
22.0X10-1
≤5.0×10-
5.4 Manufacturing
5. 4. 1 General requirements
Inner diameter of neck tube
Table 4 Allowable deviation of inner diameter of neck tube
In addition to complying with the provisions of this standard, container manufacturing shall also comply with the requirements of the design drawings. 5.4.2 Forming
5.4.2.1 The wall thickness of the inner liner and outer shell after forming shall meet the requirements of the design drawings. 5.4.2.2 The surface of the inner liner and outer shell shall be free of scratches, mechanical damage and collision. 5.4.3 Welding
Welding personnel shall be qualified before welding. 5. 4. 3. 1
5.4.3.2 The welding chain of the inner liner and outer shell shall be welded by gas shielded welding. Allowable deviation
GB/T14174—2012
Unit: meter
5.4.3.3 The surface of the welding area, including butt joints and fillet joints, shall be free of cracks, undercuts, pores, arc pits and spatters, without sharp shape changes, and shall be smooth transition. 5.4.3.4 The weld reinforcement and the width of the same-weld shall meet the requirements of the design drawings. 5.4.3.5 The weld of the inner liner shall be leak-proof after hydrogen mass spectrometer leak detection, and its leakage rate shall comply with the provisions of the design drawings. 5.4.4 Insulation layer winding
5.4.4.1 Before winding, the insulation material and the inner layer shall be clean and dry. 5.4.4.2 The adsorbent shall be activated before use. 5.4.4.3 The winding site shall be kept clean and dry 5.4.4.4 When the insulation layer is wound, the reflective material and the insulation material shall be coated on the outer surface of the inner liner, and measures shall be taken to prevent loosening and falling off.
5.4.5 Assembly
The connection between the neck tube and the inner liner and the outer shell shall be firm and reliable. GB/T14174-2012
5.4.5.2 Before assembly, the insulation layer shall be kept clean, and the surface of the parts related to the vacuum interlayer shall be cleaned and dried, and free of oil and dust.
During assembly, parts should be kept clean and free from water and oil contamination. 5.4.5.3
5.4.5.4 The container should not be assembled with force.
5.4.5.5 The connection between the rotating tray and the inner tank should be firm and reliable, and it should rotate flexibly after being fully loaded. 5.4.6 Nitrogen mass spectrometer leak detection
5.4.6.1 The inner tank can be assembled only after passing the nitrogen mass spectrometer leak detection, and its leakage rate should comply with the requirements of the design drawings. 5.4.6.2 The leakage rate of the vacuum interlayer after the container is assembled should comply with the requirements of Table 3. 5.4.7 The outer surface of the container should be polished, and its surface roughness should comply with the requirements of the design drawings. 5.4.8 Cleanliness and appearance quality
5.4.8.1 The surface of the container should be free of scratches, oil, dust and water pollution. 5.4.2 Accessories such as the lifting tube, tray and cover plug should be clean. 5.4.8.3 The inside of the container should be clean and free of foreign matter and odor. 6 Test method
6.1 Effective volume
The effective volume shall be measured by the weighing method in GB/T18443.8: 6.2 Neck tube inner diameter
The neck tube inner diameter shall be measured by an inner diameter gauge with an accuracy of not less than 0.1 mm. 6.3 Vacuum degree of interlayer
The measurement of vacuum degree of interlayer shall comply with the provisions of G3/T18443.2. 6.4 Vacuum interlayer rate
The measurement of vacuum interlayer leakage rate of container shall comply with the provisions of GB/T18443.3. 6.5 Static evaporation rate
6.5.1 The static evaporation rate shall be measured by weighing method. 6.5.2 The test scale shall meet the following requirements: a) The maximum weighing shall not be greater than 5 times the total mass of the container when the liquid nitrogen filling rate is 100%; b) The accuracy shall be better than or equal to 1/3000.
6.5.3 During the test, the liquid nitrogen filling rate in the container shall not be less than 50%. Do not put the lifting cylinder, cover it with a lid, and let it stand for 48 hours before measuring. 6.5.4 The data recording time interval is 24 hours and 48 hours. 6.5.5 Other requirements for static evaporation rate shall comply with the provisions of GB/T18443.5. 8
6.6 Cleanliness and appearance quality
GB/T 14174—2012
6.6.1 Cleanliness is checked by wiping the surface of the container and accessories with white, clean, dry and degreased white paper. 6.6.2 Appearance quality is checked by visual inspection. Inspection rules
Inspection classification
Container inspection is divided into factory inspection and type test. 7.2
Factory inspection
7.2.1 Each container shall be inspected and can only be shipped after passing the inspection. 7. 2.2
Factory inspection items shall comply with the provisions of Table 5. 7.3
Type test
Type test shall be carried out in any of the following cases: 7. 3. 1
When the container design is finalized;
b) When the design parameters, structure, main material and key manufacturing process of the wearer are changed, which may affect the performance of the container; other special cases, such as when required by relevant parties. 7.3.2
The containers for type test shall be randomly sampled, and the number shall not be less than 2. 7.3.3 The items for type test shall comply with the provisions of Table 5. 7.3.4 When there are unqualified items in the type test, it is allowed to select another container from the type test containers for re-inspection of the unqualified items. When the re-inspection is qualified, the type test is judged as qualified; when the re-inspection is unqualified, the type test is judged as unqualified: Table 5 Inspection items
Inspection items
Appearance quality
External dimensions
Weld reinforcement
Weld appearance
Cleanliness
Effective volume
Pre-pipe inner diameter
Interlayer void space (under use status)
Vacuum interlayer leakage rate
Static evaporation rate
Factory inspection
Type test
GB/T 14174—2012
8 Marking, packaging, storage and transportation
8.1 Marking
The container should have a container mark in an obvious position on the outer surface, and its content should include: A) the name of the manufacturer;
b) the product name and model;
the product number and manufacturing date;
d) the registered trademark of the container.
8.2 Packaging
When the container leaves the factory, it should be accompanied by documents such as the certificate of conformity, instruction manual and packing list. 8.2.2 After packaging, the container should not be visible and anti-clustering measures should be taken. 8.2.3 The markings and instructions on the outer wall of the packaging box should be clear and comply with the provisions of GB/T6388--1986. The contents are as follows: Name of the shipping station and the manufacturer:
Name of the receiving station and the receiving unit;
Container model and production number:
Net weight, gross weight and quantity of the container;
Volume of the packaging box (length × width × height): www.bzxz.net
Packaging storage and transportation icons such as "fragile items", "upward" and "afraid of rain" should be marked on the outside of the packaging box in a conspicuous place. The markings should comply with the provisions of GB/T191-2008.
8.2.4 This box for export container packaging should comply with the provisions of SN/T0273-2002. 8.3 Storage and transportation
8.3.1 The container should be stored in a cool and dry place. 8.3.2 During the transportation of the container, it should be loaded and unloaded with care and should not be placed sideways or upside down. 101 Marking
The container should have a container mark in an obvious position on the outer surface, and its content should include: A) the name of the manufacturer;
b) the product name and model;
the product number and manufacturing date;
d) the registered trademark of the container.
8.2 Packaging
When the container leaves the factory, it should be accompanied by documents such as the certificate of conformity, instruction manual and packing list. 8.2.2 After packaging, the container should not be visible and anti-clustering measures should be taken. 8.2.3 The markings and instructions on the outer wall of the packaging box should be clear and comply with the provisions of GB/T6388--1986. The contents are as follows: Name of the shipping station and the manufacturer:
Name of the receiving station and the receiving unit;
Container model and production number:
Net weight, gross weight and quantity of the container;
Volume of the packaging box (length × width × height):
Packaging storage and transportation icons such as "fragile items", "upward" and "afraid of rain" should be marked on the outside of the packaging box in a conspicuous place. The markings should comply with the provisions of GB/T191-2008.
8.2.4 This box for export container packaging should comply with the provisions of SN/T0273-2002. 8.3 Storage and transportation
8.3.1 The container should be stored in a cool and dry place. 8.3.2 During the transportation of the container, it should be loaded and unloaded with care and should not be placed sideways or upside down. 101 Marking
The container should have a container mark in an obvious position on the outer surface, and its content should include: A) the name of the manufacturer;
b) the product name and model;
the product number and manufacturing date;
d) the registered trademark of the container.
8.2 Packaging
When the container leaves the factory, it should be accompanied by documents such as the certificate of conformity, instruction manual and packing list. 8.2.2 After packaging, the container should not be visible and anti-clustering measures should be taken. 8.2.3 The markings and instructions on the outer wall of the packaging box should be clear and comply with the provisions of GB/T6388--1986. The contents are as follows: Name of the shipping station and the manufacturer:
Name of the receiving station and the receiving unit;
Container model and production number:
Net weight, gross weight and quantity of the container;
Volume of the packaging box (length × width × height):
Packaging storage and transportation icons such as "fragile items", "upward" and "afraid of rain" should be marked on the outside of the packaging box in a conspicuous place. The markings should comply with the provisions of GB/T191-2008.
8.2.4 This box for export container packaging should comply with the provisions of SN/T0273-2002. 8.3 Storage and transportation
8.3.1 The container should be stored in a cool and dry place. 8.3.2 During the transportation of the container, it should be loaded and unloaded with care and should not be placed sideways or upside down. 10
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