ISO 10619-1:2017规定了三种测量橡胶和塑料软管和管道柔韧性的方法（方法A1、B和C1），其中测量了软管或管道的变形，以及两种通过测量在环境温度下将橡胶或塑料软管或管道弯曲到特定半径所需的力来测量刚度的方法（方法A2和C2）。 方法A1和A2适用于内径小于等于80 mm的橡胶和塑料软管和管道。 方法A1允许通过测量软管在两个板之间压缩时外径的减小来测量软管或管道的柔性。 方法A2提供了一种测量当软管或管道被压缩时达到特定弯曲半径所需的力的方法，如在两个板之间。试验可在规定的内部压力下进行。 方法B适用于内径小于等于100 mm的橡胶和塑料软管和管道，并提供了一种评估软管和管道绕心轴弯曲时性能的方法。使用的最终心轴直径可作为软管或管道的最小弯曲半径。由于该值由外径的减少量确定，因此可将其用作软管或管道柔韧性的测量值。 被测试的软管或管道可以是无压、加压或真空状态，如果需要，可以是弯曲的，也可以是与软管或管道的弯曲相反的，如果存在这种弯曲的话。 方法C1和C2适用于内径大于等于100 mm的橡胶和塑料软管和管道。 方法C1提供了一种在最小弯曲半径下确定软管和管道柔韧性的方法。 方法C2提供了在最小弯曲半径下测量软管和管道刚度的方法。

ISO 10619-1:2017 specifies three methods for measuring the flexibility of rubber and plastics hoses and tubing (methods A1, B and C1), where the deformation of the hose or tubing is measured, and two methods for measuring the stiffness (methods A2 and C2) by measuring the force required to bend rubber or plastics hoses or tubing to a specific radius at ambient temperature. Methods A1 and A2 are suitable for rubber and plastics hoses and tubing with inside diameter of up to and including 80 mm. Method A1 allows the measurement of the flexibility of the hose or tubing by measuring the reduction in outside diameter when the hose is compressed between two plates. Method A2 provides a means of measuring the force required to reach a specific bend radius when the hose or tubing is compressed, as between two plates. The test can be carried out at a specified internal pressure. Method B is suitable for rubber and plastics hoses and tubing with inside diameter of up to and including 100 mm, and provides a means of assessing the behaviour of the hose and tubing when bent around a mandrel. The final mandrel diameter used can be taken as the minimum bend radius of the hose or tubing. As this value is determined by the reduction of the outside diameter, it can be used as a measure of the flexibility of the hose or tubing. The hose or tubing being tested can be unpressurized, pressurized or under vacuum and, if required, with the curvature or against the curvature of the hose or tubing, if such curvature is present. Methods C1 and C2 are suitable for rubber and plastics hoses and tubing with inside diameter of 100 mm and greater. Method C1 provides a means of determining the flexibility of the hose and tubing at the minimum bend radius. Method C2 provides a method of measuring the stiffness of the hose and tubing at the minimum bend radius.