NB/SH/T 0505-2017 in English

This standard provides a method for determining the shear stability of polymer-containing oil using ultrasonic shear technology. The procedure outlines the necessary equipment, sample preparation, and testing conditions to ensure consistent and reliable results. It specifies the parameters for ultrasonic application, including frequency and duration, which are critical for assessing the oil's ability to maintain its properties under mechanical stress. The standard also details the evaluation criteria for the oil's performance after the shear process, ensuring that the results are reproducible and comparable across different laboratories. The methodology is designed to simulate real-world conditions that the oil may encounter, thereby supporting quality control and product development in relevant industries.