Rules for Quality Inspection of pvc lay flat hose
There are many kinds of PVC lay flat hose and it has a wide range of applications. The most familiar one is its use in agricultural irrigation. The environment used in agricultural irrigation is more complex. In order to ensure the effect of its use, we will test its quality. What rules should we abide by when testing?
The quality of PVC lay flat hose is checked by a batch of PVC lay flat hose of the same kind, same inner diameter and 1000 meters long. 100 meters were randomly selected for appearance inspection. The inner diameter of each specimen shall conform to the requirements of these Rules for the unit length component and the arithmetic average value of seepage volume of three specimens to conform to these Rules; and one specimen shall carry out explosion experiments in only one condition, and shall conform to these Rules; if there is a certain item that does not conform to these Rules, it shall be allowed to be re-examined once. Samples are doubled in the most economical way at the time of reinspection. The results of sample re-examination shall conform to the rules of this Code, otherwise they will be unqualified products.
