GB/T 5565.1-2017Rubber and plastics hoses and tubing -- Measurement of flexibility and stiffness -- Part 1: Bending tests at ambient temperatures (English PDF)
橡胶和塑料软管及非增强软管 柔性及挺性的测量 第1部分：室温弯曲试验
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Issued by
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Level / Type
National · Recommended
Issue date
September 7, 2017
Implementation date
April 1, 2018
Scope
GB/T 5565.1-2017 is the English-translated version of 橡胶和塑料软管及非增强软管 柔性及挺性的测量 第1部分：室温弯曲试验.
GB/T 5565.1-2017 is the Chinese standard "Rubber and plastics hoses and tubing -- Measurement of flexibility and stiffness -- Part 1: Bending tests at ambient temperatures".
Its scope clause reads: GB/T 5565 provisions of this part at room temperature from the hose or non-reinforced hose deformation measured at the rubber and plastic hose and non- Three Ways to Enhance Hose Flexibility (Methods A1, B, and C1) and to bend rubber or plastic or non-reinforced hose to a specified radius , Two methods of measuring the stiffness by measuring the bending force (methods A2 and C2).
Methods A1 and A2 apply to rubber and plastic hoses with internal diameters less than or equal to 80 mm and unreinforced hoses. Method A1 Compression hoses are made using two splints and the flexibility of the hose or non-reinforced hose is measured by measuring the decrease in OD.
Method A2 Flattening a hose or non-reinforced hose with two cleats gives a way to measure the force required to reach a specified bend radius. Method B applies to rubber and plastic hoses with inner diameter less than or equal to 100 mm and non-reinforced hoses.
Given the evaluation of the hose and non-increase Strong hose bending around the mandrel when the state method. The chosen mandrel diameter can be the minimum bend radius of a hose or non-reinforced hose.
Measured The OD reduction can be used to measure the flexibility of a hose or non-reinforced hose. The tested hose or non-reinforced hose may not be under pressure, under pressure or under pressure Empty, if required, for elbows, may not be pressurized, stressed or under vacuum at bending or non-bending.
Methods C1 and C2 apply to rubber and plastic hoses with inner diameter greater than or equal to 100 mm and non-reinforced hoses. Method C1 gives a method of measuring flexibility when the hoses and unreinforced hoses are bent to the minimum bend radius.
Method C2 gives a method of determining stiffness when the hose and non-reinforced hose are bent to the minimum bend radius. Its clauses include terms and definitions.
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Document preview — GB/T 5565.1-2017
National Standard of the People's Republic of China
- ICS
- 23.040.70
- Classification
- G 42
- Replacing
- GB/T 5565-2006
Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Contents
- Foreword
- 2006 compared to the main technical changes are as follows.
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
1 Scope
GB/T 5565 provisions of this part at room temperature from the hose or non-reinforced hose deformation measured at the rubber and plastic hose and non-
Three Ways to Enhance Hose Flexibility (Methods A1, B, and C1) and to bend rubber or plastic or non-reinforced hose to a specified radius , Two methods of measuring the stiffness by measuring the bending force (methods A2 and C2).
Methods A1 and A2 apply to rubber and plastic hoses with internal diameters less than or equal to 80 mm and unreinforced hoses.
Method A1 Compression hoses are made using two splints and the flexibility of the hose or non-reinforced hose is measured by measuring the decrease in OD.
Method A2 Flattening a hose or non-reinforced hose with two cleats gives a way to measure the force required to reach a specified bend radius.
Method B applies to rubber and plastic hoses with inner diameter less than or equal to 100 mm and non-reinforced hoses. Given the evaluation of the hose and non-increase
Strong hose bending around the mandrel when the state method. The chosen mandrel diameter can be the minimum bend radius of a hose or non-reinforced hose. Measured
The OD reduction can be used to measure the flexibility of a hose or non-reinforced hose. The tested hose or non-reinforced hose may not be under pressure, under pressure or under pressure
Empty, if required, for elbows, may not be pressurized, stressed or under vacuum at bending or non-bending.
Methods C1 and C2 apply to rubber and plastic hoses with inner diameter greater than or equal to 100 mm and non-reinforced hoses.
Method C1 gives a method of measuring flexibility when the hoses and unreinforced hoses are bent to the minimum bend radius.
Method C2 gives a method of determining stiffness when the hose and non-reinforced hose are bent to the minimum bend radius.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
ISO 4671 Rubber and plastics hoses and hose assemblies Hose sizes and hose assemblies Length measurement methods (Rubberand plasticshosesandhoseassemblies-Methodsofmeasurementofthedimensionsofhosesandthe lengthsofhoseassemblies)
ISO 8330 Rubber and plastics hoses and hose assemblies terms (Rubberandplasticshosesandhose assemblies-Vocabulary)
ISO 23529 Rubber physical test methods - Sample preparation and conditioning procedures (Rubber-Generalproceduresforpre- paringandconditioningtestpiecesforphysicaltestmethods)
3 Terms and definitions
ISO 8330 defined and the following terms and definitions apply to this document. […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 24 pages — is available in the English PDF.
Referenced standards
Normative references
ISO 4671 · ISO 8330 · ISO 23529
Cited by
- GB/T 10546-2026Rubber hoses and hose assemblies for liquefied petroleum gas (LPG) in the liquid or gaseous phase and natural gas up to 2.5 MPa - Specification
- GB/T 47754-2026Connections for pneumatic fluid power - Plastic hoses dimensions and specification
- GB/T 18948-2025Rubber hoses and tubing for cooling systems for automotives - Specification
- GB/T 39313-2020Rubber hoses and hose assemblies. Compact wire-braid-reinforced hydraulic types for oil-based or water-based fluids. Specification
- GB/T 39327-2020Rubber and plastics hoses for marine-engine wet-exhaust systems. Specification
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GB/T 5565.2-2017 — Rubber and plastics hoses and tubing -- Measurement of flexibility and stiffness -- Part 2: Bending tests at sub-ambient temperatures
GB/T 5565.3-2017 — Rubber and plastics hoses and tubing -- Measurement of flexibility and stiffness -- Part 3: Bending tests at high and low temperatures
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