Valid

GB/T 39248-2020[Including 2023XG1] Thermoplastic mufti-layer (non-vulcanized) hoses and hose assemblies for the transfer of hydrocarbons, solvents and chemicals-Specification (English PDF)

Preview PDF

This is a limited preview

Buy now to download the full PDF (32 pages)

Need quotation for your management?

Get a formal quotation for GB/T 39248-2020 in 30 minutes.

Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

November 19, 2020

Implementation date

October 1, 2021

Scope

GB/T 39248-2020 ([Including 2023XG1] Thermoplastic mufti-layer (non-vulcanized) hoses and hose assemblies for the transfer of hydrocarbons, solvents and chemicals-Specification) is available as an English-translated PDF.

GB/T 39248-2020 is the Chinese standard "[Including 2023XG1] Thermoplastic mufti-layer (non-vulcanized) hoses and hose assemblies for the transfer of hydrocarbons, solvents and chemicals-Specification".

Its scope clause reads: This standard specifies two types of thermoplastic multilayer (non-vulcanized) hoses and hose sets for the transportation of liquefied petroleum gas and liquefied natural gas.

The requirements of the package. Each type is divided into 2 categories, one is for onshore and the other is for offshore. ---Class A is used on shore; ---Class B is used offshore.

This standard is applicable to the inner diameter of 25mm~300mm, the working pressure of 1.05MPa~2.5MPa and the working temperature range of -196°C~ 45°C thermoplastic multi-layer (non-vulcanized) hose and hose assembly. Note. Offshore LNG hose assemblies are also specified in EN1472-2.

Found what you need?

Document preview — GB/T 39248-2020

National Standard of the People's Republic of China

ICS: 75.200; 83.140.40
Classification: G 42

Issued by: State Administration for Market Regulation, China National Standardization Administration

Preface
1 Scope
2 Normative references
3 Terms and definitions
4 Category
5 Material and structure
6 size
6.1 Inner diameter, tolerance and minimum bending radius
6.2 Length tolerance
7 Performance requirements for hoses and hose assemblies
7.1 Films and fibers
7.2 Hose
7.3 Hose connector
7.4 Hose assembly
7.5 Electrical continuity
8 Test frequency
9 Type test
10 Sign
10.1 Hose marking
10.2 Hose assembly marking
Appendix A (Normative Appendix) Extrusion Recovery Test Method
Appendix B (Normative Appendix) Heat Aging Test
Appendix C (Normative Appendix) Test Method for Hose Joints at Low Temperature
Appendix D (Normative Appendix) Hydrostatic Test Procedure
Appendix E (Normative Appendix) Safety Test Methods for Hose Joints
Appendix F (Normative Appendix) Sealing Test Method
Appendix G (Normative Appendix) Type test and routine test of hoses and hose assemblies
Appendix H (informative appendix) Batch test of hoses and hose assemblies

1 Scope

This standard specifies two types of thermoplastic multilayer (non-vulcanized) hoses and hose sets for the transportation of liquefied petroleum gas and liquefied natural gas.

The requirements of the package. Each type is divided into 2 categories, one is for onshore and the other is for offshore.

---Class A is used on shore;

---Class B is used offshore.

This standard is applicable to the inner diameter of 25mm~300mm, the working pressure of 1.05MPa~2.5MPa and the working temperature range of -196°C~

45°C thermoplastic multi-layer (non-vulcanized) hose and hose assembly.

Note. Offshore LNG hose assemblies are also specified in EN1472-2.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document.

For undated references, the latest version (including all amendments) applies to this document.

GB/T 5563-2013 Rubber and plastic hoses and hose assemblies hydrostatic test method (ISO 1402.2009, IDT)

GB/T 9572-2013 Determination of electrical resistance and conductivity of rubber and plastic hoses and hose assemblies (ISO 8031.2009, IDT)

GB/T 24134-2009 Evaluation of ozone resistance of rubber and plastic hoses under static conditions (ISO 7326.2006, IDT)

ISO 148-1 Charpy Pendulum Impact Test for Metallic Materials Part 1.Test Method

ISO 527-1 Determination of the tensile properties of plastics Part 1.General

ISO 4671 Rubber and plastic hoses and hose assemblies, measuring methods for hose size and hose assembly length

ISO 8330 Rubber and plastic hoses and hose assemblies terminology

ISO 1043-1 Plastic symbols and abbreviations Part 1.Basic polymers and their characteristic properties

ISO 10619-1 Rubber and plastic hoses and non-reinforced hoses-Measurement of flexibility and stiffness-Part 1.Room temperature bending test

ISO 10619-2 Rubber and plastic hoses and non-reinforced hoses-Measurement of flexibility and stiffness-Part 2.Bend test below room temperature

GB/T 40726 | GB/T 33513 | GB/T 33514 | GB/T 24136 | GB/T 39249 | […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 32 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 1402.2009 · ISO 8031.2009 · ISO 7326.2006 · ISO 148 · ISO 527 · ISO 4671 · ISO 8330 · ISO 1043 · ISO 10619

How to Download GB/T 39248-2020

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.