|
MINISTRY OF LABOR - INVALIDS AND SOCIAL AFFAIRS OF
VIETNAM
|
THE SOCIALIST REPUBLIC OF VIETNAM
Independence - Freedom - Happiness
---------------
|
|
No. 17/2021/TT-BLDTBXH
|
Hanoi, November 15, 2021
|
CIRCULAR
PROMULGATING PROCEDURE FOR INSPECTION OF TECHNICAL SAFETY
OF INDUSTRIAL GAS CYLINDERS UNDER MANAGEMENT OF THE MINISTRY OF LABOR -
INVALIDS AND SOCIAL AFFAIRS
Pursuant to the Law on
Occupational Safety and Health dated June 25, 2016;
Pursuant to the
Government’s Decree No. 14/2017/ND-CP dated February 17, 2017
defining the functions, tasks, powers and organizational structure of the
Ministry of Labor - Invalids and Social Affairs;
Pursuant to the
Government’s Decree No. 44/2016/ND-CP dated May 15, 2016 elaborating
on several Articles of the Law on Occupational Safety and Health on technical
inspection of occupational safety, occupational safety and health training and
workplace environment monitoring;
Pursuant to the
Government’s Decree No. 140/2018/ND-CP dated October 08, 2018 on
amendments to Decrees related to business conditions and administrative
procedures under the management of the Ministry of Labor - Invalids and Social
Affairs;
At the request of the
Director General of the Department of Work Safety;
The Minister of Labor
- Invalids and Social Affairs hereby promulgate a Circular on procedure for
inspection of technical safety of industrial gas cylinders under management of
the Ministry of Labor - Invalids and Social Affairs.
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
Promulgated together with
this Circular is the procedure for inspection of technical safety of industrial
gas cylinders under management of the Ministry of Labor - Invalids and Social
Affairs, code: QTKD: 06-2021/BLDTBXH.
Article 2. Effect
1. This Circular comes
into force from January 01, 2022.
2. Inspection procedure No. QTKD: 06-2016/BLDTBXH Procedure
for inspection of technical safety of industrial gas cylinders promulgated
together with the Circular No. 54/2016/TT-BLDTBXH dated December 28, 2016 of
the Ministry of Labor - Invalids and Social Affairs shall cease to have effect
from the effective date of this Circular.
Article 3. Implementation
1. Ministries,
ministerial agencies, Governmental agencies, People’s Committees of provinces
and central-affiliated cities, organizations and individuals concerned are
responsible for the implementation of this Circular.
2. Difficulties that
arise during the implementation of this Circular should be reported to the
Ministry of Labor - Invalids and Social Affairs for instructions and
resolution./.
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
PROCEDURE FOR INSPECTION OF TECHNICAL SAFETY OF INDUSTRIAL
GAS CYLINDERS UNDER MANAGEMENT OF THE MINISTRY OF LABOR - INVALIDS AND SOCIAL
AFFAIRS
CODE QTKD: 06-2016/BLDTBXH
(Promulgated with the Circular No. 17/2021/TT-BLDTBXH dated
November 15, 2021 of the Minister of Labor - Invalids and Social Affairs)
Article 1. Scope
This technical safety
inspection procedure shall be used for first, periodic and unexpected
inspections of industrial gas cylinders with a working
pressure of more than 0.7 bar (hereinafter referred to as “gas cylinders”)
under state management of the Ministry of Labor - Invalids and Social Affairs
as prescribed in Appendix Ib of the Government’s Decree No. 44/2016/ND-CP dated
May 15, 2016 elaborating on several Articles of the Law on Occupational Safety
and Health on technical inspection of occupational safety, occupational safety
and health training and workplace environment monitoring.
This inspection procedure
shall not be used for inspection of liquefied petroleum gas (LPG) cylinders.
Article 2. Regulated
entities
1. Organizations carrying
out technical inspections of occupational safety (hereinafter referred to as
“inspecting organization”).
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
3. Organizations and
individuals managing, using and owning industrial gas cylinders (hereinafter
referred to as “establishments”).
4. Regulatory bodies,
relevant organizations and individuals.
Article 3. Normative
references
1. National technical
regulation on safe work of steam boiler and pressure vessel QCVN:01-2008/BLDTBXH
promulgated together with the Decision No. 64/2008/QD-BLDTBXH dated November
27, 2008 of the Ministry of Labor - Invalids and Social Affairs (hereinafter
referred to as “QCVN:01-2008/BLDTBXH”).
2. TCVN 6292:2013 Gas
cylinders - Refillable welded steel cylinders issued together with
Decision No. 1475/QD-BKHCN dated June 12, 2013 of the Ministry of Science and
Technology (hereinafter referred to as “TCVN 6292:2013”).
3. TCVN 6294:2007 Gas
cylinders - Welded carbon -steel gas cylinders issued - Periodic
inspection and testing issued together with Decision No. 3213/QD-BKHCN
dated December 31, 2007 of the Ministry of Science and Technology (hereinafter
referred to as “TCVN 6294:2007”).
4. TCVN 6295:1997 Gas
cylinders - Seamless gas cylinders - Safety and performance criteria (of water
capacities between 0.5 l to 150 l, regardless of any pressure) issued together
with Decision No. 2123/QD-BKHCN dated April 05, 2018 of the Minister of Science
and Technology (hereinafter referred to as “TCVN 6295:1997”).
5. TCVN 6871:2007 Gas
cylinders - Transportable cylinders for dissolved acetylene - Periodic
inspection and maintenance issued together with Decision No.
3213/QD-BKHCN dated December 31, 2007 of the Ministry of Science and Technology
(hereinafter referred to as “TCVN 6871:2007”).
6. TCVN 6156:1996
Pressure vessels - Safety engineering requirements of erection, use, repair -
Testing method issued together with Decision No. 1596/QD-TDC dated July 26,
1996 of the Ministry of Science and Technology (hereinafter referred to as
“TCVN 6156:1996”).
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
Article 4. Terms and
definitions
For the purposes of this
inspection procedure, the following terms and definitions apply:
1. “industrial gas
cylinder” means a cylinder which is used to contain and transport gases,
liquefied gas or dissolved gas (industrial gas) at above atmospheric pressure
and with a water capacity of up to 150 liters, manufactured and labeled in
accordance with the provisions of TCVN 6292:2013 and TCVN 6295:1997.
2. “first safety
inspection” means the evaluation of technical safety of an industrial gas
cylinder according to national technical regulations and technical safety
standards after its manufacturing and before its first use.
3. “periodic safety
inspection” means the evaluation of technical safety of equipment according to
national technical regulations and technical safety standards after expiration
of the last safety inspection result.
4. “unscheduled safety
inspection” means the evaluation of technical safety of according to national
technical regulations and technical safety standards after such equipment is
repaired, replaced or processed affecting technical safety of the cylinder or
at the request of the establishment or a competent authority.
Article 5. Inspection
equipment and instruments
Inspection equipment and
instruments shall be inspected and calibrated in accordance with regulations.
Inspection equipment and instruments includes the following:
1. Non-destructive
thickness gauge.
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
3. Equipment for cylinder
valve installation and removal.
4. Hydraulic testing equipment.
5. Cylinder leak tester.
6. Volumetric expansion
tester.
7. Internal cylinder
cleaning equipment.
8. Equipment for
in-cylinder examination by endoscopic method.
9. Vacuum equipment.
10. Electronic scale.
11. Cylinder stamping
equipment.
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
Article 6. Conditions
for inspection
The inspection of
industrial gas cylinders must not be carried out unless the following
conditions are met:
1. The cylinders are at
the ready for inspection.
Gas cylinders fully
filled with gas before being imported into Vietnam must undergo a first safety
inspection according to the steps specified in clause 1 and clause 2 Article 8
of this inspection procedure (excluding the steps specified in clauses 3
through 8 Article 8 of this inspection procedure). The inspection carried out
by following all steps prescribed in Article 8 of this inspection procedure
shall be only applied to cylinders before being re-filled with gas for
subsequent use or cylinders due for inspection prescribed in Article 9 of this
inspection procedure.
2. Documents of the
cylinders are adequate.
3. The inspection is not
affected by environment or weather.
4. Requirements
concerning occupational safety and health are met.
Article 7. Preparation
for inspection
Before carrying out an
inspection, it is required to make the following preparations:
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
a) Preparing documents of
the cylinders.
b) Determining the
cylinders to be inspected:
- Regarding first safety
inspection: Randomly select 5% of the batch of cylinders to be inspected (the
selected cylinders must be representative of the sub-batches of cylinders). If
any of the inspected cylinders is found failed, 100% of the cylinders in the
batch must be inspected (according to point 4.2 TCVN 6156:1996).
- Regarding periodic or
unexpected inspection: inspect 100% of the cylinders.
c) Prepare a delivery record
and make preparations in respect of human resources and vehicles for transport
of cylinders to the place of inspection.
d) Preliminary inspection
and instructions:
- Immediately reject any
cylinder which is not owned by the establishment or the inspection of which is
not requested by the authorized establishment;
- Reject cylinders which
are not listed or on which specifications are unavailable or unclear, cylinders
with defects exceeding the rejection limits such as: bulge, dent, intersecting
cut or gouge, crack, fire damage, arc or torch burns;
- Proceed to release and
treat the residual gases in the cylinders, making sure the cylinders are free
of pressure and residual gases;
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
dd) For cylinders that
have been filled with storage gas, when the periodic inspection is due, such
cylinders must be inspected at a rate of 5%.
- If the inspected
cylinders are passed, the remaining cylinders may be stored/used for no more
than one year;
- If any of the inspected
cylinders is failed, 100% of the remaining cylinders must be inspected. The
period of gas release for inspection of 100% of the cylinders must not exceed
one month.
e) Making preparations in
respect of human resources, supplies and equipment to serve the inspection;
appoint personnel to participate in and witness the inspection.
2. Prepare suitable
and adequate facilities for inspection.
3. Develop safety
measures and reach an agreement thereon with the establishment before inspection.
Provide adequate personal protective equipment to ensure safety during the
inspection.
Article 8. Inspection
steps
Upon conducting a
technical safety inspection of gas cylinders, the inspector shall follow the
inspection steps in turn. The next inspection step is taken only when the
result of the previous step is passed. Inspection steps consist of:
1. Step 1: Examine
documents, profiles or information of the cylinders
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
a) Upon first safety
inspection:
- Profile of the cylinder
batch and technical documents of the manufacturer (forms are provided under
QCVN 01-2008/BLDTBXH). The following documents should be considered:
+ Indicators concerning
manufacturing metals, welding metals;
+ Calculation of
strength of pressure retaining components;
+ Structural drawings
showing all main dimensions;
+ Guidelines on
operation, maintenance and repair (if any);
+ Certificate of
conformity issued by the designated organization as prescribed in the case
where the competent authority has promulgated national technical regulations
applicable to the inspected cylinders.
- Factory acceptance
record of the cylinder batch:
+ Certificate of the
manufacturer, standards applied;
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
+ Certificate of
manufacturing metals;
+ Record and sheet of the
strength and leak test results for the batch of cylinders;
+ Report on examination
of mechanical properties of welds;
+ Record of the volume expansion
test results;
+ Record of the explosion
test results;
+ Record of the thickness
and weld test results (if any).
b) Upon periodic safety
inspection:
- Previous profile of the
cylinder batch, inspection record and certificate of inspection result or
information and documents about the cylinders.
- Documents on the use,
operation and maintenance; inspection or examination record (if any).
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
- Documents on the use,
operation and maintenance; inspection or examination record (if any).
- Documents on repair,
post-repair acceptance record documenting the replacement of pressure retaining
components.
The document and profile
inspection result is passed if the documents and profiles are adequate and
comply with the regulations set out in point 2.4 QCVN: 01/2008/BLDTBXH. If
failed, the establishment shall take remedial actions.
2. Step 2: External
technical inspection
a) Check the technical
specifications stamped on the handle or neck of each cylinder, compare them
with the technical data on the cylinder on the list of cylinders to be
inspected. Reject cylinders not included in the list of cylinders to be
inspected and cylinders on which specifications are missing or blurred.
b) Check the condition of
the surface, welds, base, and handles (if any).
c) When there is any
suspicion during the visual inspection, additional tests or examination
measures must be applied such as: ultrasonic testing of thickness or welds (if
any) or other non-destructive testing measures.
d) Evaluation: A cylinder
is passed if its components remain normal, there is not any unusual sign and
specifications on the cylinder are consistent with those on documents. Reject
cylinders according to point 4.8 of TCVN 6156:1996, Appendix C of TCVN
6294:2007 and Appendix C of TCVN 6871:2007.
3. Step 3: Internal
technical inspection
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
- Cylinders containing
inert gas, non-toxic and non-flammable gases may be placed in direct release
position.
- Cylinders containing
toxic and flammable gases must be treated using specialized equipment. The
recovered gases may be used or treated safely and must not be released directly
into the environment.
b) Remove valves from the
cylinder head, prevent impact that can cause deformation or damage to the
cylinder’s valve or neck thread.
c) Examine the tightness
of the valves and safety parts (if any); reject failed valves.
d) Clean the inside of
the cylinders (For acetylene cylinders containing porous mass, the cleaning
step is not required but the quality of the porous mass must be checked
according to the manufacturer's instructions or TCVN 6871:2007).
dd) Check the inside of
the cylinders with an endoscope to evaluate the metal surface and welds
(not applicable to soluble acetylene cylinders). In case of any suspicion,
request the establishment to adopt other appropriate measures.
e) Evaluation: A cylinder
is passed if its inside remains normal and there is not any unusual sign.
Reject cylinders according to point 4.8 of TCVN 6156:1996.
4. Step 4: Technical
inspection of pressure resistance (strength test)
Strength test shall not
be performed on cylinders containing porous mass.
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
Table 1: Strength test pressure, test media and test
holding time
Type of cylinder
Test medium
Test pressure
(bar)
Holding time
(minute)
Normal welded cylinder
Water
1.5 maximum working
pressure
≥ 0,5
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
Air or inert gas
1.5 maximum working
pressure
≥ 0,5
Seamless cylinder
Water
1.5 maximum working
pressure
≥ 2
b) Temperature of the
test medium must be less than 50°C and can be colder than the ambient
temperature by up to 5°C.
c) The pressure shall be
increased or decreased slowly so as not to cause sudden expansion, thereby
affecting the cylinder’s strength.
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
- Before performing test
with gas, the strength must be calculated according to actual measurements of
the cylinder
- Safety measures in case
of test with gas:
+ The gas supply valve
and sample pressure gauge on the gas inlet line must be placed away from the
cylinder location;
+ A prohibition sign “No
unauthorized entry to the test area” must be erected;
+ A safe gas supply must
be ensured.
Evaluation: A cylinder is
passed if the pressure does not decrease when maintained at the test pressure,
there is no leakage from the cylinder body or welds or there is no deformation
in excess of the prescribed limits.
dd) For welded cylinders:
carry out evaluation according to point 9.1 of TCVN 6292:2013.
e) For seamless
cylinders: carry out evaluation according to according to point C.4.3 of TCVN
6295:1997.
5. Step 5: Volumetric
expansion test
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
a) Water jacket method:
Enclose the water-filled cylinder in a jacket that is also filled with water.
The total and any permanent volumetric expansion of the cylinder are measured
as to the amount of water displaced by the expansion of the cylinder when under
pressure and after the pressure is released (carry out evaluation according to
C.5.2.1 of TCVN 6295:1997).
b) Non-water jacket
method: Measure the amount of water passed into the cylinder as it is
pressurized to test pressure and measure the amount of water expelled from the
cylinder to reduce the pressure to atmospheric pressure. First measure the
amount of water while increasing the water pressure in the cylinder to
determine the total expansion of the cylinder at test pressure, then measure
the amount of water expelled from the cylinder, subtract that amount of water
from the total expansion to determine the permanent volumetric expansion (carry
out evaluation according to C.5.2.2 of TCVN 6295:1997).
Evaluation: according to
point C.5.3 of TCVN 6295:1997.
For a seamless cylinder
(of a capacity between 12 and 55 l), rely on the increase in volume or decrease
in weight of the cylinder shell to reduce the working pressure of the cylinder
or reject it according to the provisions in point 4.10 of TCVN 6156:1996.
Note: The volumetric
expansion test on seamless cylinders shall be conducted together with the
strength test.
c) Remove and clean the
test medium; dry the inside of the cylinder.
d) Install the tested
valves on the cylinder.
6. Step 6: Tightness test
a) Test medium: Air or
inert gas.
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
c) For seamless
cylinders: Fill the cylinders with compressed air or inert gas to a pressure of
50% to 60% of the maximum working pressure, hold this pressure for 01 minute.
d) Check the tightness of
the connectors, valve joints, etc. of the cylinders with soap solution or in a
specialized tank. Leaking cylinders must be treated and their tightness must be
re-tested.
Evaluation:
- For welded cylinders:
carry out evaluation according to point 9.2 of TCVN 6292:2013;
- For seamless cylinders:
carry out evaluation according to according to point C.6.3 of TCVN 6295:1997.
7. Step 7: Degassing and
vacuuming
If a cylinder is passed,
proceed to completely degas the cylinder, dry its outside; vacuum and fill the
cylinder with shielding gas (if required).
8. Step 8: Checking tare
weight of cylinders
a) Weigh each cylinder
and determine its tare weight (carry out evaluation according to point 10.2 of
TCVN 6292:2013). Check and compare it with the tare weight stamped by the
manufacturer on the cylinder;
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
c) For seamless
cylinders: carry out evaluation according to according to point 4.10 of TCVN
6156:1996.
9. Step 9: Processing
inspection results
a) Prepare an inspection
record and a list of cylinders and cylinder batches which contain sufficient
information according to the form specified in the Appendices to this
inspection procedure.
b) Approve the inspection
record:
Mandatory participants in
the process of approving the inspection record include:
- When inspecting
cylinders at the inspecting organization's facility:
+ Facility's head
directly inspecting cylinders;
+ Inspectors supervising
the inspection of cylinders;
+ Head of the technician
team directly inspecting cylinders.
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
- When inspecting
cylinders at the establishment:
+ Its representative or
person authorized by the establishment;
+ Person assigned to
witness the inspection;
+ Inspectors conducting
the inspection.
As the record is
approved, the inspectors, the witness, and the representative of the
establishment or a person authorized by the establishment shall append their
signatures and seals (if any) on the record. The record shall be made
into two (02) copies, each party shall keep 01.
c) Write the brief inspection result to the profile of the
cylinder batch (including full names of the inspectors and the date of
inspection).
d) Affix an inspection
symbol:
- Stamp information about
inspection results on the handle or shoulder of each cylinder in the correct
size and in the same row in the following order: Symbol of the inspecting
organization-month/year of inspection-month/year of next inspection (according
to point 14.4 of TCVN 6294:2007 or point 4.12 of TCVN 6156:1996).
Such information must not
cover existing numbers on the cylinder’s handle or shoulder.
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
- For gas cylinders
filled with gas as specified in clause 1 Article 6 of this inspection procedure,
the inspection symbol is not required to be affixed but is affixed upon the
next inspection.
d) Rejected cylinders
must have the thread on their neck damaged or have their body drilled to
prevent gas from being mistakenly filled into the cylinders. Apply the
rejection method specified in section 15 of TCVN 6294:2007 to carbon steel gas
cylinders or section 10 of TCVN 6871:2007 to acetylene cylinders.
e) Certify the inspection
result: If an inspected cylinder passes the test, the inspecting organization
shall issue the certificate of inspection result to the cylinder or cylinder
batch within 05 working days from the date on which the inspection record is
approved.
g) If the cylinder or
cylinder batch fails the test, the regulations set out in points a, b and c
clause 9 of this Article shall be complied with and the inspection record
explicitly specifying the explanation for the failure shall be issued to the
establishment.
h) Cooperate with the
establishment in handling rejected cylinders as prescribed in point d clause 9
of this Article. Dossiers on rejected cylinders must be archived at the
inspecting organization; the inspection record and notification shall be sent
to the employment authority of the area where the inspection facility is
located.
Article 9. Inspection interval
1. The technical safety
inspection interval is 05 (five) years.
2. For cylinders that
have been used for more than 20 (twenty) years and cylinders that contain
corrosive and toxic gases such as Chlorine, Hydrogen Sulfide, Methane Chloride,
Phosphine, Sulfuric Anhydride and Hydrogen Chloride, the technical safety
inspection interval is 02 (two) years.
3. For cylinders that
contain corrosive and toxic gases such as Chlorine, Hydrogen Sulfide, Methane
Chloride, Phosphine, Sulfuric Anhydride and Hydrogen Chloride that have been
used for more than 20 (twenty) years, the technical safety inspection interval
is 01 (one) year.
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
5. If the inspection
interval is shortened, the inspector shall specify explanation in the
inspection record.
6. If the inspection
interval is specified in national technical regulations, such national
technical regulations shall apply.
APPENDIX 01
SPECIMEN OF RECORD ON
INSPECTION OF TECHNICAL SAFETY OF
INDUSTRIAL GAS CYLINDERS
(Name of the inspecting organization)
-------
THE SOCIALIST REPUBLIC OF VIETNAM
Independence - Freedom - Happiness
---------------
.............., [place], ………[date]
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
RECORD ON INSPECTION OF TECHNICAL SAFETY OF INDUSTRIAL GAS
CYLINDERS
No. .........................
Pursuant to the
Procedure for inspection of technical safety of gas cylinders No. QTKD: 06-2021/BLDTBXH
promulgated together with the Circular No. ............/2021/TT-BLDTBXH dated
..., 2021 of the Ministry of Labor - Invalids and Social Affairs.
We are:
Representatives of the
inspecting organization:
1.…………………………… Inspector number:………………..……………..…..….
2.…………………………… Inspector
number:…………………………..…..…..….
currently working for:
…………………………………………………………….……. (specify name of the inspecting organization)
Registration certificate
No. ……………………………….……..…….
Individuals witnessing
the inspection and approving the record:
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
2………………………………….……
Position:………….........……………….
Have inspected (names of
cylinders):……………………. …………………………
Under
ownership/management of (name of the organization or individual owning/managing
cylinders):……….…………
……………………………………………………………………..………………………...
Address (head office of
the establishment):……………………………………………..………
Address (location) of
installation:…………………………………………………….……………
I - BASIC SPECIFICATIONS
- Name and address of the
manufacturer:……………………………………………………….
- Month and year of
manufacture:…………………………………………………………….…..
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
- Quantity and list of
inspected sample cylinders: ................................................................
- Name of brand stamped
on
cylinders:................................................................................
- Working pressure:
………….. bar Test pressure: .........................................bar.
- Capacity: ……………….liter
Tare weight: ………………………kg.
-
Uses:………………….…......................................................................................
- Previous inspection
record No. (if any):……………….. dated:…………………… conducted by (name of inspecting
authority): ……………………..……………….………………..
II - FORMS OF INSPECTION
First time
□
Periodic
□
Unscheduled □
- Reason for unscheduled
inspection (if any):……………….………………………..…….
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
1. Document and
profile examination:
Item
Evaluation
Yes
No
Cylinder profile and
documents
Manufacturer’s
technical documentation (applicable to first inspection, evaluation under point
a section 1 Article 8 of Inspection Procedure QTKD :06-2021/BLDTBXH)
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
Cylinder factory
acceptance record (applicable to first inspection, evaluation under point
a section 1 Article 8 of Inspection Procedure QTKD :06-2021/BLDTBXH)
Previous inspection
documents: Previous inspection record and certificate of previous inspection
result
(Not applicable to first inspection)
Documents on the use,
operation and maintenance; inspection or examination record (if any)
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
Documents on repair,
post-repair acceptance record documenting the replacement of pressure
retaining components (if any)
Other documents (if
any)
(Specify enclosed
documents)
Result evaluation:
-
Remarks:……………………………………………………………..................................
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
2. External technical
inspection
-
Remarks:……………………………………………………………..................................
…………………………………………………………………………………………………..
- Technical
specifications stamped on the cylinder: …………………………………........
- Defects - deformations:
……………………………….................………..…………
- Result
evaluation:
Passed ⬜
Failed ⬜
3. Internal technical
inspection
-
Remarks:……………..………………..……………………………………...........................
…………………………………………………………………………………………………..
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
- Metal surface, welds
(not applicable to dissolved acetylene cylinders):…....
- Porous mass (for
dissolved acetylene cylinders): ………………................…………..…
- Result
evaluation:
Passed ⬜
Failed ⬜
4. Test:
Type of test
Test medium
Test pressure
(bar)
Holding time
(minute)
Strength test
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
Volumetric expansion
test
Tightness test
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
-
Remarks:…………………………………………………………….......................
- Result evaluation:
Passed ⬜
Failed ⬜
IV – CONCLUSION AND RECOMMENDATIONS
1. Batch (quantity of
cylinders) inspected: Passed ⬜
Failed ⬜
2. Has an inspection
symbol affixed at: …………………………………………….
3. Working pressure:
……………………bar.
4. Recommendations:
……………………………………………………………………………..
5. Deadline for
implementation of recommendations: …………………………………………………………….
V - INSPECTION INTERVAL
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
The record is approved
on……………………[date]
At (specify the place
of inspection): ………………………………………………………….../.
1- At the inspecting
organization's inspection facility:
HEAD OF FACILITY
(Signature, full name)
INSPECTOR
(Signature, full name)
TECHNICIAN
(Signature, full name)
2- At the
establishment:
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
WITNESS
(Signature, full name)
INSPECTOR
(Signature, full name)
APPENDIX 02
LIST OF INSPECTED SAMPLE CYLINDERS
Cylinder batch:
Quantity of cylinders:
Manufacturing number:
From………………..to……………………………………………..……
User (manager):
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
No.
Manufacturing number
Month and year of manufacturing
Manufacturer
Weight (Kg)
Capacity
(liter)
Result
Passed
Failed (Specify reason)
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
2
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
...
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
APPENDIX 03
LIST OF CYLINDERS NOT INCLUDED IN BATCHES (OR LIST OF CYLINDER
BATCHES)
Cylinder batch:
Quantity of cylinders not
included in cylinder batches:
User (manager):
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
No.
Manufacturing number
No.
Manufacturing number
No.
Manufacturing number
No.
Manufacturing number
1
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
2
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
...
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
Note:
+ When a cylinder batch
is continuously numbered, the quantity of cylinders not included in batches is
small (since some cylinders were taken out by the manufacturer for mechanical
testing, destructive testing, etc.), write “DANH SÁCH CÁC CHAI KHÔNG CÓ TRONG
LÔ” (“LIST OF CYLINDERS NOT INCLUDED IN BATCHES”. When a cylinder batch is not
continuously numbered, write “DANH SÁCH LÔ CHAI” (“LIST OF CYLINDER BATCHES”)
and fully write numbers of cylinders in the batches.
+ If the quantity of
cylinders is small, write it in the record. An enclosed list of cylinders is
not required.
Note: This list of cylinders
must not be erased or modified and must bear a seal at the upper left corner or
seal on adjoining edges of pages.
APPENDIX 04
LIST OF INSPECTED CYLINDER BATCHES
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
Quantity of cylinders:
Manufacturing number:
From………………..to……………………….
User (manager):
(Enclosed with inspection record or certificate of
inspection No. …………, dated…)
No.
Manufacturing number
Month and year of manufactyuring
Manufacturer
Weight (Kg)
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
Passed
Failed (Specify reason)
1
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
3
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.
...
...
...
...
Please sign up or sign in to your
TVPL Pro Membership to see English documents.