1、 Overview
The NH-230 cold resistance coefficient tester is used to measure the cold resistance coefficient of rubber and film samples after being frozen at room temperature and subjected to a certain load. The cold resistance coefficient is calculated based on the change in the elongation of the sample, or the length increase value is calculated by stretching the sample to the same length with the required load.

2、 Main technical parameters
　
1. Sample elongation: 230mm
　
2. Sample tensile high load: 40N
　
3. Sample clamping distance: rubber 25mm, film 100mm