该方法基于将不锈钢或玻璃容器置于油浴或烘箱中，向容器中添加足量的粘合剂，熔化样品，在工作温度和软化点下测量粘度，在4小时到6小时之间的固定时间间隔内重复这些操作，直到达到根据预定标准停止试验的时间，并在每次测量时观察和记录以下现象:皮肤形成、烟雾、相分离、凝胶化、颜色变化。

The method is based on placing a stainless steel or glass vessel in an oil bath or oven, adding a sufficient quantity of the adhesive to the vessel, melting the sample, measuring the viscosity at the operating temperature and the softening point, repeating these operations at regular time intervals of between 4 h and 6 h, until the time for stopping the test according to pre-determined criteria is reached, and observing and recording, at the time that each measurement is taken, the following phenomena: skin formation, fumes, phase separation, gelation, change in colour.