BS ISO 6721-10:2015规定了测定动态压力的方法的一般原则 聚合物熔体在角频率下的流变特性，通常在0.01 rad·s-1至 100 rad·s-1，通过具有平行板几何形状的振荡流变仪。角频率 也可使用此范围之外的（见注1）。该方法用于确定以下各项的值: 动态流变特性:复剪切粘度η*，动态剪切粘度η'，异相 复剪切粘度η的分量“，复剪切模量G*，剪切损耗模量G”，以及 剪切储能模量G'。它适用于测量复杂的剪切粘度值，通常高达 约10 MPa·s（见注2）。注1:角频率测量范围受测量仪器规格的限制 以及样本的反应。当使用低于0.1 rad的角频率进行测试时？s1.考试 时间可以显著增加，因为获得单个测量所需的时间与倒数成正比 角频率。因此，当在低角度频率下进行测试时，降解或聚合 更可能发生试样的断裂，并对结果产生影响。在高角度频率下，试样 可能导致边缘变形或断裂，从而使测试结果无效。注2:可测量的复合剪切粘度值范围取决于试样 测量仪器的尺寸和规格。对于给定尺寸的试样 范围上限受机器的扭矩能力、角位移分辨率和 顺从但是，可以对合规效应进行修正。 交叉引用:ISO 472ISO 5725-1ISO 6721-1购买时可用的所有现行修订版均包含在本文件的购买中。

BS ISO 6721-10:2015 specifies the general principles of a method for determining the dynamic rheological properties of polymer melts at angular frequencies typically in the range of 0,01 rad·s-1 to 100 rad·s-1 by means of an oscillatory rheometer with a parallel-plate geometry. Angular frequencies outside this range can also be used (see Note 1). The method is used to determine values of the following dynamic rheological properties: complex shear viscosity η*, dynamic shear viscosity η', the out-of-phase component of the complex shear viscosity η", complex shear modulus G*, shear loss modulus G", and shear storage modulus G'. It is suitable for measuring complex shear viscosity values typically up to ~10 MPa·s (see Note 2).NOTE 1 The angular-frequency measurement range is limited by the specification of the measuring instrument and also by the response of the specimen. When testing using angular frequencies lower than 0,1 rad?s?1, the test time can increase significantly as the time taken to obtain a single measurement is proportional to the reciprocal of the angular frequency. Consequently, when testing at low angular frequencies, degradation or polymerization of the specimen is more likely to occur and have an effect on the results. At high angular frequencies, the specimen can distort or fracture at the edge, consequently invalidating the test results.NOTE 2 The range of complex shear viscosity values that can be measured is dependent on the specimen dimensions and also the specification of the measuring instrument. For a specimen of given dimensions, the upper limit of the range is limited by the machine's torque capacity, angular-displacement resolution, and compliance. However, correction can be made for compliance effects.Cross References:ISO 472ISO 5725-1ISO 6721-1All current amendments available at time of purchase are included with the purchase of this document.