The "ISO 10619 Rubber and plastic hoses and pipes - Measurement of elasticity and stiffness" standard, published by the International Organization for Standardization (ISO), consists of the following sub-sections published under the same title:
Methods A1 and A2 are suitable for rubber and plastic hoses and pipes with an inner diameter of up to 80 mm.
Method A1 allows the measurement of the elasticity of a hose or pipe by measuring the reduction in its outer diameter when the hose is compressed between two plates.
Method A2 provides a way to measure the force required to achieve a specific bending radius when a hose or pipe is compressed between two plates. The test can be performed at a given internal pressure.
Method B is suitable for rubber and plastic hoses and pipes with an inner diameter of up to 100 mm and provides a way to evaluate the behavior of hoses and pipes when bent around a mandrel. The final mandrel diameter used can be taken as the minimum bending radius of the hose or pipe. Since this value is determined by reducing the outer diameter, it can be used as a measure of the flexibility of the hose or pipe. The hose or pipe under test can be unpressurized, pressurized, or vacuumed, and if necessary, it can be in the same direction as the curvature of the hose or pipe, or in the opposite direction if there is a curvature.
Methods C1 and C2 are suitable for rubber and plastic hoses and pipes with an inner diameter of 100 mm and above.
Method C1 provides a way to determine the flexibility of hoses and pipes at their minimum bending radius.
Method C2 provides a way to measure the stiffness of hoses and pipes at their minimum bending radius.
The ISO 10619-1 standard includes methods for evaluating the flexibility and stiffness of rubber and plastic hoses and pipes by measuring the force required to bend the hose/pipe to a specific radius at 23 degrees plus/minus 2 degrees (ambient temperature). This standard applies to hoses and pipes with the following characteristics: hoses and pipes with an inner diameter from 6 mm to 500 mm, and both reinforced and unreinforced products.
This standard is important for the following reasons:
Method A is suitable for non-foldable rubber and plastic hoses and pipes with bore diameters up to (inclusive) 25 mm. This method provides a way to measure the stiffness of the hose or pipe when the temperature is lowered from standard laboratory temperature.
Method B is suitable for rubber and plastic hoses and pipes with bore diameters up to 100 mm and provides a way to assess the flexibility of the hose or pipe when bent around a mandrel below a specified ambient temperature. It can also be used as a routine quality control test.
Method C is suitable for rubber and plastic hoses and pipes with bore diameters of 100 mm and above. This method provides a way to measure the stiffness of hoses and pipes below ambient temperature. This method is only suitable for non-foldable hoses and pipes.
The ISO 10619-2 standard describes how to measure the flexibility and stiffness of rubber and plastic hoses and pipes when exposed to low temperatures (minus 55 degrees or lower). It is designed specifically for products that must maintain their functionality in winter conditions, arctic environments, or refrigerated applications.
The main industries that rely on this standard are:
Many rubber and plastic materials become brittle in the cold. A hose that is perfectly flexible at room temperature can shatter like glass at minus 40 degrees. The ISO 10619-2 standard provides a repeatable way to prove that a hose can bend and function without cracking or requiring excessive force after being exposed to severe cold.
Applications that typically require ISO 10619-3 standard testing include:
Many rubber compounds soften significantly at high temperatures. A hose that is perfectly stiff at 23 degrees Celsius may collapse under its own weight or slight external pressure when hot. The ISO 10619-3 standard provides an objective and repeatable way to prove that a hose maintains adequate stiffness and structural integrity at its maximum service temperature.
For many years, our organization, with its competent and experienced staff, has been understanding the needs of its customers, providing the advanced testing services they require, and assisting them in the establishment, implementation, and improvement of management systems. Within this framework, we also provide testing services to businesses in accordance with the "ISO 10619 Rubber and plastic hoses and pipes - Measurement of elasticity and stiffness" standard.
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