本国际标准规定了测定剪切性能的设备和程序。适用于隔热产品。 注:本国际标准中所述的试验并不确定纯剪切性能，而是测量向试样主要表面施加两个相反平行力的效果。然而，按照惯例，该测试在本文中被称为“剪切”。与测量剪切性能的其他方法（例如弯曲试验）相比，与试样主要表面相切的力的应用被认为更能代表在许多建筑应用中，尤其是墙壁中，隔热产品上施加的应力。

This International Standard specifies the equipment and procedures for determining shear behaviour. It is applicable to thermal insulating products. NOTE The tests described in this International Standard do not determine pure shear behaviour, but measure the effects of applying two opposite parallel forces to the major faces of the test specimen. The test is, however, called "shear" in this text by convention. The application of a force tangentially to the major surface of the test specimen is considered to represent more closely the stresses imposed upon thermal insulation products in many building applications, particularly walls, than other methods of measuring shear performance, e.g. bending tests.