How to Identify The Quality of PVC Pipe?
To identify the quality of PVC pipes, there are several ways to do this: Measurement: 1. Measure the wall thickness: Check whether the specified wall thickness is reached. Here, we must pay attention to it. Some pipes are evacuated, the wall thickness of both ends meets the requirements, but the middle wall thickness is thin, which does not meet the requirements for use, and is reduced by evacuation. cost. 2. Measure the length: Check whether the specified length has been reached, some manufacturers rely on shortening the length to reduce the price. Negative deviations are not allowed by ASTM/ ANSI/ DIN/ BS/ JIS. Look at: 1. look at the gloss: looks good surface gloss and oily, is a high-quality product. 2. look at the color: the standard high-quality PVC-U pipe is light beige, if it looks pale, it means that the calcium powder is added excessively, some manufacturers add too many miscellaneous materials, recycled materials, resulting in a black and yellow pipe. Weighing: Weighing: Wei