Where:

S refers to total exterior area of the tank, (m²)

A refers to discharge rate at 15 ^oC and atmospheric pressure, (m³/min).

In regard to tanks whose dimensions are not listed above, use the formula: A= 3,1965 . S^0,82

- Flow rate of safety valves fitted to an above ground tank shall equal 3,33 times the corresponding values under Schedule 1.

- Requirements in safety valve installation:

+ In regard to installed safety valves that must be isolated for inspection, testing, and/or maintenance, if one valve is isolated, the other valve shall still be able to fulfill discharge rate requirements.

+ Safety valves shall be connected to and be located as close as possible to vapour chamber.

+ Avoid formation of liquid traps and pressure obstructing accurate operation of safety valves, especially in case of long drain pipes.

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4.7.3. Liquid-form LPG fueling valves

A check valve and a shut-off valve shall be fitted on liquid-form LPG fueling line. Pipes whose nominal diameter exceeds 50 mm shall be fitted with flange valves made from forged steel and having minimum working pressure equal to design pressure of pipe system.

4.7.4. Liquid-form and gas-form LPG withdrawal valves

Outlet pipes of LPG withdrawal line shall be fitted with emergency shut-off valves which allow rapid manual closing or manual and automatic closing in order to disrupt LPG supply in case of emergency. Pipes whose nominal diameter exceeds 50 mm shall be fitted with flange valves made from forged steel and having minimum working pressure equal to design pressure of pipe system.

4.7.5. Bottom drain valve

Bottom drain outlets of tanks shall be located at the lowest liquid point. Exterior bottom drain pipes shall be fitted with two shut-off valves that are leak resistant and 500 mm apart along the length of the pipe.

4.7.6. Liquid-form LPG gauge

- Tanks shall be fitted with at least one gauge for measuring liquid with measuring spectrum covering the entire volume of the tanks.

- A minimum of 1 mechanical-type gauge or water gauge or automatic gauge is required.

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4.7.7. Manometer

Manometer shall be fitted to tank section that contains gas-form LPG:

- Maximum class of accuracy shall be 2,5.

- Minimum diameter of manometer shall be 75 mm.

- Measuring spectrum shall be sufficient so that maximum working pressure is between 1/3 to 2/3 of the spectrum.

4.7.8. Labels on tank shells shall contain the information below at a minimum:

- Name of manufacturer and manufacturing number.

- Manufacturing date.

- Contents.

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- Design pressure.

- Design temperature.

- Volume.

- Hydraulic test pressure and hydraulic test date.

4.7.9. Outdoor vertical tanks shall, in addition to complying with regulations above, comply with the followings:

- Tanks shall be designed to withstand their own load without the use of bracing and shall satisfy specific design principles including wind, seismic, and hydrostatic pressure.

- Wind load applied to tanks shall be based on wind pressure on projected area in regions with varying ground elevations in a manner appropriate with standards on wind load of Vietnam.

- Seismic load applied to tanks shall be based on force basis instructed under standards on seismic load of Vietnam.

4.7.10. Corrosion allowance

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5. Regulations on installation

5.1. Installation location and separation distance of tanks

5.1.1. LPG tanks shall be located outdoors, in open spaces, or outside of enclosed structures. Tanks shall not be placed on the roofs, in balconies, in basements, or beneath structures.

5.1.2. Do not install tanks beneath members such as awnings, bridges, or overhead power lines.

Separation distance from tanks to overhead power lines shall comply with electricity safety laws.

5.1.3. Tanks shall not be stacked on top of one another. Horizontal cylindrical tanks shall not be line up length-wise with other tanks and not be directed towards houses or service establishments.

5.1.4. If LPG tank placement areas are located near roads leading to occupied areas, LPG tanks shall be surrounded by open fences that are at least 1,8 m tall and at least 1,5 m away from the tanks. These fences shall have at least 2 entrances that are not close to one another. Each entrance shall have a minimum width of 1 m, be fitted with out-swinging protective door that is not installed with automatic locks.

If technical trenches and channels are present, these shall be filled with sand and covered with load-bearing boards if vehicles travel on top of them.

5.1.5. Minimum separation distance from LPG tanks to tanks containing flammable liquid with flash point below 65 ^oC shall be 7 m.

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5.1.6. Measures shall be taken to eliminate all sources of fire in tank areas.

5.1.7. Separation distance between LPG tanks and hydrogen tanks, oxygen tanks shall be compliant with Schedule 2:

Schedule 2. Separation distance between LPG tanks and hydrogen tanks, oxygen tanks

Tank volume, V (m³)

Separation distance to oxygen tanks with volume of (m^3*)

Separation distance to hydrogen tanks with volume of (m^3*)

≤11

11 ⁺ ~566

> 566

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11 ~ 85

> 85

≤ 4,5

none

6

7,6

...

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none

6

15

≤1,9

...

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...

none

3

7,6

> 1,9

none

7,6

...

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* Volume of oxygen tanks and hydrogen tanks (m³) is measured at 21 ^oC and atmospheric pressure

Separation distance shall not be required if fire protective structures effective for a minimum of 2 hours are installed between non-insulative sections of hydrogen tanks or oxygen tanks and LPG tanks.

5.1.8. Minimum separation distance from tanks to protected objects and between tanks shall be compliant with schedule 3:

Schedule 3 - Minimum separation distance from tanks to protected objects and between tanks

Tank volume, V (m³)

Minimum separation distance (m)

Separation distance between tanks (m)

Underground tank

Above ground tank

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3

1,5

0

0,5 < V ≤ 1

3

3

0

1 < V ≤ 1,9

3

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1

1,9 < V ≤ 7,6

3

7,6

1

7,6 < V ≤ 114

15

15

1,5

...

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...

15

23

1/4 of the sum of diameter of two adjacent tanks

265 < V ≤ 341

15

30

341 < V ≤ 454

15

38

...

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15

61

1/4 of the sum of diameter of two adjacent tanks

757 < V ≤ 3785

15

91

V > 3785

15

122

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Schedule 4 - Maximum above ground tanks in a group and separation distance between tank groups

Firefighting facilities and system equipped serving the tank

Maximum number of tanks in a tank group (tank)

Minimum separation distance between tank group (m)

Water outlet and hose reel

6

15

Stationary fire monitors (positioned so that they can cover the entire surface)

6

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Stationary water mist system

9

7,6

Tank fitted with insulative layers to keep tank temperature from exceeding 427 ^oC and have up to 50 minutes of heat resistance

9

7,6

5.2. Tank installation

5.2.1. Tanks shall be positioned in a way so that safety valves are directly connected to vapour containment section of the tanks. Outlets shall be located at an elevated position, clear area, and directed upwards. Outlets of safety valves shall not be directed towards tanks, LPG pipes, and operators.

5.2.2. LPG tanks shall be fitted with adequate safety and measuring equipment as per the law. Tanks shall be fitted with emergency shut-off valves.

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5.2.4. Above ground tanks shall be painted to achieve corrosion resistance.

5.2.5. Tanks shall be installed in a manner that allows easy access for operation, repair, and maintenance purposes.

5.2.6. Tanks shall not be located in frequently flooded areas. Underground and mounded tanks located in areas with high groundwater level shall be firmly anchored.

5.3. Drainage

5.3.1. Surface below or around LPG tanks shall be sloped to drain liquid out of tank and pipe area and prevent LPG build-up when tanks leak. The minimum slope grading is 1%.

5.3.2. Drainage system shall be designed to prevent liquid spilling from one tank to the underside of other tanks and minimize risks to pipe systems due to LPG spill.

5.3.3. If tanks are fitted with water-based firefighting system, drainage system shall then be calculated to ensure sufficient drainage capability.

5.4. Requirements regarding installation of underground or mounded tanks

5.4.1. Underground tanks shall satisfy requirements below:

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- The top of tank compartments shall be designed to withstand load, and avoid damage when vehicles move on top in case of force majeure.

- Connections and couplings of tanks, pipes shall be protected from vehicular collision.

- Tanks shall be painted or coated to minimize corrosion.

- Damage to the paint coat shall be rectified prior to installation.

- Tanks shall be placed on flat ground and covered by tightly compacted soil or sand.

- Soil and sand covering the tanks shall not contain rocks or corrosive substances.

5.4.2. Mounded tanks shall be installed as follows:

- Mound materials shall be sand, soil, or other non-flammable, non-corrosive materials and minimum thickness shall be 0,3 m.

- Protective covering shall be placed on top of mound materials to prevent corrosion.

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- Mounded tanks shall be painted or protected to minimize corrosion.

6. Tank bracket and foundation

6.1. Design of tank bracket and foundation shall be compliant with applicable regulations, standards on LPG tank design and construction.

6.2. Adequate geological survey documents shall be required to identify permissible load, total subsidence and uneven subsidence, including unexpected seismic activities, risk of propulsion, and deviation from original conditions.

6.3. In order to minimize subsidence, especially uneven subsidence shall be included in design calculation of bearing pads in order to minimize stress build-up in tanks and pipes.

6.4. The welding of brackets to LPG tanks shall be compliant with welding laws.

6.5. Design of bearing pads shall allow tank displacement due to pressure and temperature. Pipe fittings shall be located in secured ends.

6.6. Design of bearing pads shall prevent liquid build-up or include drainage outlets prevent liquid build-up.

6.7. Tank support system shall be designed so that the tanks lean towards discharge outlets at a degree of 1:100 to 1:400.

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6.9. Bearing pads shall have a minimum of 2 hours of fire resistance and waterproofing capability.

6.10. Support structures shall reserve sufficient space under the tank for pipe installation, safe operation and maintenance of equipment below.

7. Regulations on electricity safety

7.1. Danger zone classification

- Zone 0: Means an area where LPG - flammable gas mixture is present on a regular basis during normal operation;

- Zone 1: Means an area where LPG - flammable gas mixture is not present on a regular basis during normal operation;

- Zone 2: Means an area where LPG - flammable gas mixture is not present at all during normal operation or in short period of time if it is present.

Regulations on danger zones relating to LPG tanks shall be compliant with Schedule 5.

Schedule 5 - Danger zones of electric appliance in LPG tank area

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Radius

Danger zone

Tank

a) Within a 1,5 m radius in all direction from connecting points of the tank

Zone 1

b) Up to 1,5 m above the foundation down to 0 within a 3 m radius from the tank shell, not including the radius under a)

Zone 2

Safety valve

a) In the direction of discharge

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b) Within a 1,5 m radius in all directions

Zone 1

c) From exceeding 1,5 m to 4,5 m in all directions from point of discharge

Zone 2

Filling coupler

a) Within a 1,5 m radius in all directions

Zone 1

b) From exceeding 1,5 m to 4,5 m radius in all directions.

Zone 2

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- Electric appliances in danger zones shall be explode-proof, inspected as per the law, and have the highest surface temperature rating depending on installation location, rated voltage and frequency of the electrical grid.

- Installation, operation, and maintenance of electric appliances shall be complaint with approved design and technical instructions of manufacturers.

- Equipment that contains electrical and electronic circuits that are not safe circuits and is located in areas with fire, explosion hazards shall be placed in explode-proof electrical panels.

- Selection of electric appliances shall prevent all equipment from working at an overloaded state.

7.3. Static safety

Above ground LPG tanks shall be grounded where the maximum ground resistance is not greater than 4Ω.

8. Requirements regarding fire safety and firefighting

8.1. LPG tank area shall be well-ventilated not contain trees or flammable materials in the vicinity.

8.2. All firefighting facilities shall have sufficient quantity, type, and quality as per fire safety and firefighting laws.

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8.4. Cooling water

Water sources for firefighting, fire hose, stationary water mist system, and control scheme supplying water for stationary water mist system and fire hose shall be compliant with QCVN 01:2019/BCA.

9. Regulations on operation

9.1 General requirements

9.1.1. Operating procedures, safety regulations, and incident response procedures for LPG tanks shall be placed in visible locations.

9.1.2. Operation logs and repair logs shall be required at the establishments.

9.1.3. Individuals conducting operation tasks shall receive professional training, safety training, and fire safety training as per the law.

9.2. Filling LPG in tanks

9.2.1. Separation distance from points where LPG is withdrawn from tanker trucks or tankers to tanks shall be compliant with Schedule 6.

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Adjacent structures

Separation distance (m)

Above ground LPG tanks with volume from 16 m³ to less than 25 m³

3

Above ground LPG tanks with volume from 25 m³ to less than 125 m³

6

Above ground LPG tanks with volume from 125 m³

9

9.2.2. LPG content in tanks shall not exceed the permissible limit. Gauge indicating LPG content shall have marker indicating permissible limit.

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9.2.3. All LPG tanks shall be protected from corrosion. Protective coating shall be inspected at least once every two years to prevent corrosion. Tank shell thickness shall be inspected on a regular basis and at least once every fire years.

9.2.4. On a daily basis, operators shall examine working conditions of equipment LPG filling plants in accordance with operating procedures in order to maintain safe and proper working conditions and prevent LPG leak.

10. Regulations on maintenance

10.1. LPG tank users shall be responsible for maintaining and ensuring tank operation in safe conditions.

10.2. Maintenance procedures of LPG tanks shall be required..

10.3. Maintenance shall be performed on a periodic basis, at least once every five years.

10.4. Maintenance shall be performed by qualified and experienced persons.

10.5. Maintenance shall be recorded by users in tank logs.

11. Regulations on examination and test

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- Hydraulic test.

- Airtight test.

- Ultrasonic thickness (UT) gauge.

- Radiographic testing (RT) or similar methods.

- Magnetic test (MT).

- Paint coating thickness gauge.

11.2. Hydraulic test:

11.2.1. Hydraulic test shall only be conducted when installation and repair have been finished and tanks are deemed satisfactory for testing by means of examination.

LPG tanks shall be exempt from hydraulic test during initial inspection if the tanks have been released from manufacturing within the last 18 months, are properly handled, are not damaged or deformed during transportation or installation. Inspection records shall state reasons and attach release test records of manufacturing facilities, installation commissioning records (if any).

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11.2.3. Test solutions shall be water at a temperature below 50 ^oC and no more than 5 ^oC below ambient temperature.

11.2.4. Hydraulic test pressure shall be sustained for 5 minutes. If manufactures stipulate a longer sustained period, manufacturers' stipulations shall prevail.

11.2.5. Test procedures

- Load test solutions: Fill the tanks with test solutions (note gas purge during liquid test).

When test liquid is loaded in above ground tanks, monitor subsidence of support structures and immediately stop loading the tanks if subsidence is greater that the prescribed subsidence.

- Raise pressure to test pressure (gradually in order to prevent sudden expansion which damages the tank) and do not use test hammer when test pressure is reached). Monitor and detect any irregularity during test process.

- Sustain test pressure as per the law.

- Reduce test pressure to working pressure gradually and maintain at working pressure throughout inspection process. Then reduce pressure to (0); rectify any damage (if any) and reexamine rectified results.

If water test is not feasible due to stress of support structures, support platforms or due to difficulty in draining liquid or due to strength test being conducted using gas.

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During tests using gas, specific solutions and safety measures shall be required.

- Examine airtightness using soapy solution or other methods. Do not use test hammer while testing using gas pressure.

- Monitor displacement of foundation and LPG tanks during test process.

11.2.6. Hydraulic test results are satisfactory when:

- No crack is visible.

- No gas bubble, water mist, or water droplet is found leaking through welded joints and joints in general.

- No deformation is found.

- Displacement of foundation, LPG tanks shall not exceed the displacement level prescribed by tank designers.

11.3. Airtight test

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11.3.2. Test solution shall be gases or inert gases. Minimum test pressure shall be 0,75 MPa. Minimum test duration shall be 30 minutes.

11.3.3. Test for leak using soapy solution or appropriate measures.

11.3.4. Airtight test results shall be satisfactory when:

- No gas leak is found.

- Permissible pressure drop during sustained pressure period: ≤0,5% of test pressure.

12. Regulations on inspection

12.1. Inspection interval and methods:

12.1.1. Initial inspection: After inspection, before bringing into use

12.1.2. Periodic inspection:

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-Internal and external inspection: once every 3 years.

- If manufacturers or the facilities require a shorter interval between technical and safety inspections, such request shall be strictly adhered to.

- If intervals between technical and safety inspections are shortened, inspecting individuals shall specify the reason under inspection records.

If LPG tanks belong to active manufacturing lines and therefore cannot be isolated for inspection, inspection interval shall conform to maintenance, repair intervals of the manufacturing lines without exceeding the interval prescribed by manufacturers or corresponding national technical regulations. Organizations and individuals managing, using machinery and equipment shall maintain and be responsible for safe working conditions of these machinery and equipment.

If periodic hydraulic test cannot be carried out due to technological reason or practical conditions, it is possible to employ non-destructive techniques to examine material conditions, metal surface, thickness, and welded joints of equipment.

12.1.3. Irregular inspection:

- When repair, upgrade, or renovation affects technical or safety conditions of LPG tanks.

- When installation location is changed.

- When tanks have not been operated for at least 12 months.

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12.1.4. If facilities utilize LPG tanks that satisfy regulations on risk-based inspection (RBI) of the Ministry of Industry and Trade, inspection interval shall conform to RBI results.

12.2. Inspection steps:

- Preparation.

- Internal and external inspection.

- Hydraulic test.

- Airtight test.

- Operation test.

12.3. Preparation:

12.3.1. Document inspection:

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a) For initial inspection

- Inspect background documents of LPG tanks: Pay attention to documents below:

+ Criteria regarding manufacturing metal, welded metal.

+ Strength calculation of pressure parts.

+ Design drawings that include all primary dimensions.

+ Operation, maintenance, and repair instructions.

- Factory release documents of LPG tanks

+ Certificates pertaining to manufacturing metals, welding metals.

+ Quality inspection results of welded connection.

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- Reports on calibration results of measuring instruments; inspection records of grounding, lightning protection, protective equipment.

- Installation documents:

+ Name of installing facilities and using facilities.

+ Characteristics of additional materials in installation.

+ Commissioning for construction of foundation and support structures of LPG tanks.

+ Welding documents in regard to welded joints subject to pressure during installation: Dossiers on welders (certificates, symbols, inspection results of welding samples); Welding procedures; Welding consumable certificates; Welding charts (locations of welded joints and welder arrangement); Results of welded joint visual inspection, non-destructive technique inspection (ultrasonic, radiographic imaging, osmosis), inspection records and radiographic imaging films. Weight of each welded joint inspected by ultrasonic methods or radiographic imaging shall be compliant with Section 5.4 of TCVN 6008:2010 or compliant with their manufacturers (if requirements of the manufacturers are higher); Certificates of individuals conducting non-destructive inspection of welded joints.

If welded joints are required to be hot-wrought, provisions under Section 4.12 of TCVN 6008:2010 shall be complied with.

+ Inspection records of each tank part (if any).

+ Drawings indicating tank, tank group installation location.

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- Examine working time of LPG tanks, the latest inspection records, the latest certificate of inspection.

- Feedback and conclusions regarding operating capability of LPG tanks, propositions and implementation thereof under previous inspection records.

- Inspection of periodic inspection results of measuring instruments, protective equipment, safety equipment, lightning protection equipment and replacement, repair of these equipment.

- Review of thickness of LPG tank parts previously measured (if any).

- Inspection of logs, repair and replacement logs of parts and equipment of LPG tanks.

- Inspection of LPG tank logs and log update.

- Review operating and incident response procedures, operation logs.

c) For irregular inspection

- If LPG tanks are repaired, renovated, or upgraded.

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+ Inspection of design, repair, renovation, and upgrade documents.

+ Details of renovation and repair solutions. Strength calculation of LPG tanks following renovation and upgrade (if any).

+ Conformity of auxiliary equipment, calibrating equipment, and safety mechanism following renovation to LPG tanks.

+ Certificate of quality inspection and factory release inspection of replacement parts. Replacement and repair materials shall not be weaker than the original materials.

+ Commissioning records following repair, renovation, and upgrade.

+ Welding documents during repair, renovation: Similar to those in the case of initial inspection.

+ Compliance with inspection details similar to those in the case of periodic inspection.

- For change to installation location: Review of installation documents.

+ Cause to change of installation location.

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+ Compliance with inspection details similar to those in the case of periodic inspection.

- For LPG tanks that have not been used for at least 12 month:

+ Cause for ceasing to work for more than 12 months.

+ Compliance with inspection details similar to those in the case of periodic inspection.

12.3.2. Standard equipment serving inspection

Inspection equipment shall be inspected and examined for availability, conformity to working conditions, and accuracy; kept at safe conditions in inspection area.

12.3.3. Equip adequate tools, personal protective equipment, and safety equipment during inspection process.

12.3.4. Prior to carrying out inspection, inspecting bodies and entities managing, using LPG tanks shall agree on inspection procedures and safety measures.

12.4. External and internal inspection

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- Physical inspection of on-site installation for conformity to design dossiers and this Regulation, relevant National Standards, National Regulations.

- Number of tanks in a group; minimum separation distance from tanks to protected objects and between tanks.

- Arrangement of tanks.

- Parameters specified on labels of tanks and auxiliary equipment.

- Quantity and conditions of auxiliary equipment appropriate to design.

- Inspection of foundation conditions of tanks, auxiliary equipment, and load-bearing mechanisms.

- Inspection of cleaning ports, shutters: quantity, arrangement, and dimensions allowing internal inspection of the tanks.

- Inspection of stairs and working platforms.

- Inspection of measuring instruments, protective equipment, and safety mechanisms:

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+ Inspection of pipe installation and connection: in order to identify conformity regarding position, curvature, slope degree, technical specifications of pipes, arrangement of valves, conditions of pipes, and pipe fittings.

- Inspection of liquid-form LPG withdrawal lines. Whether emergency shut-off valves have been installed on liquid-form LPG withdrawal line.

- Whole LPG tank inspection:

+ In regard to wholly-built tanks (for rapid installation): Inspect and verify that tanks are properly handled, are not damaged, collided, or welded during transportation and installation processes.

+ In regard to tanks that are not wholly built and require welding and assembly at location of use: Inspect tank assembly conditions and note assembly tolerance according to the design.

- In regard to used tanks that are installed in different locations, inspect additional details in accordance with 12.4.2.

12.4.2. In case of periodic inspection or irregular inspection

- Inspection and comparison with fulfillment of propositions under previous inspection records.

- Inspection of support brackets, level of deformation and corrosion of support brackets.

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- Inspection of working conditions of measuring instruments, protective equipment, safety mechanisms, and signal transmission lines.

- Inspection of conditions of measuring instruments and safety equipment of the tanks:

+ Measuring instruments are inspected on a periodic basis;

+ No damage affects stable and accurate operation of the equipment.

- Inspection of conditions of pipes, welded connections, flange connections, threaded connections: Level of deformation, fracture, corrosion, leak.

- Internal and external inspection of tank shell:

Internal inspection shall be carried out inside of the tanks, if tank dimensions do not allow entry, utilize techniques such as the use of lights or endoscopes.

Internal and external tank inspection shall be carried out visually in combination with tools such as rulers, glasses, and non-destructive techniques in order to detect:

+ Indents, deformation, leaks;

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+ Defects in welded connections: cracks, burnt marks, slag inclusions, incomplete fusion, undercuts, inadequate welded dimension, and other defects;

+ Corrosion, leak, erosion caused by chemical and mechanical factors;

+ Defects caused by heat, electric arc, or fire;

+ Repairs and attachments that are not appropriate.

- Inspection of working platforms, stairs, lighting systems, and industrial hygiene where tanks are installed.

- Measurement of tank thickness.

Thickness measurement of tank shell, flat sections, curved sections of tank heads, dead-end pipes, and sections with leaks, corrosion.

- Inspection of displacement in all directions of foundation and tanks.

12.4.3. In case of tank inspection following renovation or major repair

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- Inspection of criteria similar to those in the case of periodic or irregular inspection.

12.5. Hydraulic test

- Intervals between hydraulic tests shall not exceed 6 years; hydraulic tests shall also be carried out in case of irregular inspection.

- Details of hydraulic test: See 11.2.

- In case of periodic inspection, if hydraulic test is not feasible, it is permissible to consider the use of non-destructive techniques as alternatives as long as they can inspect quality of welded connections, metal surfaces, and thickness of LPG tanks.

12.6. Airtight test

Details of airtight test: See 11.3.

12.7. Operation inspection

12.7.1. Adequate inspection of conditions for bringing the system into operation

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12.7.3. Safety valves shall be calibrated and sealed as follows:

- Installation pressure of safety valves shall not exceed 1,15 times the maximum working pressure of the tanks. Installation pressure of safety valves shall not exceed 1,8 MPa in case of LPG tanks or 1,08 MPa in case of butane tanks.

- Activation pressure of safety valves installed on gas-form and liquid-form LPG line shall be suitable with working pressure of the pipes.

Outlets of safety valves shall be directed towards well-ventilated areas and not towards areas occupied by people, tanks, equipment, or heat sources.

III. Regulations on management

1. Regulations on certificate of conformity

1.1. LPG tanks, prior to being brought into operation and use, shall be declared for conformity with regulations under Section II hereof.

1.2. Assessment of conformity of LPG tanks shall be carried out as follows:

Method 8: Testing or inspecting the entirety of products, goods.

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Declaration of conformity and designation of certifying bodies for LPG tanks shall conform to Circular No. 36/2019/TT-BCT dated November 29, 2019 of the Minister of Industry and Trade.

3. Responsibilities of organizations and individuals

3.1. Organizations and individuals designing, manufacturing, importing, testing, owning LPG tanks and relevant organizations and individuals shall comply with this Regulation during installation, operation, and use of LPG tanks.

3.2. Organizations and individuals manufacturing, importing LPG tanks shall be declared for conformity with requirements under Section II hereof, maintain safety requirements of LPG tanks in accordance with the declaration, and fulfill responsibilities under other relevant legislative documents.

3.3. Organizations and individuals manufacturing, importing, owning, using LPG tanks shall maintain product, goods quality in accordance with applicable law provisions.

3.4. Organizations and individuals using LPG tanks shall carry out occupational safety and technical inspection for LPG tanks before use and on a periodic basis during use as per the law.

4. Organizing implementation

4.1. The Industrial Safety Techniques and Environment Agency shall be responsible for cooperating with relevant agencies and entities in guiding and inspecting implementation of this Regulation.

Depending on management requirements, the Industrial Safety Techniques and Environment Agency shall be responsible for requesting the Minister of Industry and Trade to amend or replace this Regulation.

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4.3. If legislative documents, standards, and regulations referred to under this Regulation are amended or replaced, the new versions shall prevail./.