Decision No. 23/2003/QD-BKHCN of the Ministry of Science and Technology issues 13 Vietnam Standards related to thermoplastic pipes, including dimensions, tolerances, impact strength, Vicat softening temperature, vertical size change, internal pressure resistance, nominal outside diameter and nominal pressure, solubility assessment, and abrasion resistance determination. The Decision takes effect 15 days from the date of publication in the Official Gazette.
핵심 사항
- The Ministry of Science and Technology → issues 13 Vietnam Standards related to thermoplastic pipes, including detailed sections on dimensions, tolerances, impact strength, Vicat softening temperature, vertical size change, internal pressure resistance, nominal outside diameter and nominal pressure, solubility assessment, and abrasion resistance determination.
- This standard applies to thermoplastic pipes used for liquid transportation, including PVC-U, PVC-C, PVC-HI, ABS, and ASA.
🌐 이 문서의 사회적 영향
- Positive impact: This standard helps ensure the quality and safety of thermoplastic pipes during liquid transportation, thereby enhancing usage efficiency and extending the lifespan of pipe systems.
- Negative impact: Due to detailed technical standards requirements, enterprises may face difficulties in compliance, particularly small and medium-sized enterprises.
❓ 자주 묻는 질문
To which types of plastic pipes does this standard apply?
This standard applies to thermoplastic pipes such as PVC-U, PVC-C, PVC-HI, ABS, and ASA.
When does the Decision take effect?
The Decision takes effect 15 days from the date of publication in the Official Gazette.
What are the main contents included in this standard?
This standard includes contents such as dimensions, tolerances, impact strength, Vicat softening temperature, vertical size change, internal pressure resistance, nominal outside diameter and nominal pressure, solubility assessment, and abrasion resistance determination.
Which agency issued this standard?
This standard was issued by the Ministry of Science and Technology.
What regulations must enterprises comply with according to this standard?
Enterprises must ensure the production and use of thermoplastic pipes in accordance with standards regarding dimensions, tolerances, impact strength, Vicat softening temperature, vertical size change, internal pressure resistance, nominal outside diameter and nominal pressure, solubility assessment, and abrasion resistance determination.
전문
Pursuant to …;
Regarding the issuance of Vietnamese Standards
THE MINISTER OF SCIENCE AND TECHNOLOGY
Pursuant to Decree No. 54/2003/NĐ-CP dated May 19, 2003 of the Government stipulating the functions, tasks, powers, and organizational structure of the Ministry of Science and Technology;
Pursuant to the Ordinance on Quality of Goods dated December 24, 1999;
Pursuant to the proposal of the General Department of Standardization, Metrology and Quality Control,
DECISION:
Article 1. Enacts the following 13 Vietnamese Standards:
| 1. |
TCVN 7093-1: 2003 (ISO 11922-1: 1997) |
Plastic pipes for liquid transportation - Dimensions and tolerances Part 1: Metric series |
|
2. |
TCVN 7093-2: 2003 (ISO 11922-2: 1997) |
Plastic pipes for liquid transportation - Dimensions and tolerances Part 2: Inch series |
|
3. |
TCVN 6144: 2003 (ISO 3127: 1994) |
Determination of impact resistance of plastic pipes - Ring test method (First review - Replaces TCVN 6144: 1996) |
|
4. |
TCVN 6147-1: 2003 (ISO 2507-1: 1995) |
Plastic pipe and fitting materials - Vicat softening temperature Part 1: General test method |
|
5. |
TCVN 6147-2: 2003 (ISO 2507-2: 1995) |
Plastic pipe and fitting materials - Vicat softening temperature Part 2: Test conditions for pipe and fitting materials made of unplasticized poly(vinyl chloride) (PVC-U) or chlorinated poly(vinyl chloride) (PVC-C) and high impact resistant poly(vinyl chloride) (PVC-HI) pipes |
|
6. |
TCVN 6147-3: 2003 (ISO 2507-3: 1995) |
Plastic pipe and fitting materials - Vicat softening temperature Part 3: Test conditions for pipe and fitting materials made of acrylonitrile/butadiene/styrene (ABS) and acrylonitrile/styrene/acrylic ester (ASA) |
|
7. |
TCVN 6148-1: 2003 (ISO 2505-1: 1994) |
Plastic pipes - Longitudinal dimensional change Part 1: Method of determination |
|
8. |
TCVN 6148-2: 2003 (ISO 2505-2: 1994) |
Plastic pipes - Longitudinal dimensional change Part 2: Determination parameters |
|
9. |
TCVN 6149: 2003 (ISO 1167: 1996) |
Plastic pipes for liquid transportation - Internal pressure strength - Test method (First review - Replaces TCVN 6149: 1996) |
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10. |
TCVN 6150-1: 2003 (ISO 161-1: 1996) |
Plastic pipes for liquid transportation - Outside nominal diameter and nominal pressure Part 1: Metric series (First review - Replaces TCVN 6150-1: 1996) |
|
11. |
TCVN 6150-2: 2003 (ISO 161-2: 1996) |
Plastic pipes for liquid transportation - Outside nominal diameter and nominal pressure Part 2: Inch series (First review - Replaces TCVN 6150-2: 1996) |
|
12. |
TCVN 6253: 2003 (ISO 8795: 2001) |
System of plastic pipes for potable water supply - Solubility evaluation - Determination of solubility values of plastic pipes, fittings and joints (First review - Replaces TCVN 6253: 1997) |
|
13. |
TCVN 6530-8: 2003 |
Fire-resistant materials - Test methods Part 8: Determination of slag resistance |
Article 2. This Decision takes effect fifteen days from the date of publication in the Official Gazette.
DEPUTY MINISTER
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