The quality of spot-checked plastic pipe products in Liaoning has improved significantly

Recently, the Liaoning Provincial Bureau of Quality and Technical Supervision organized relevant inspection units to carry out provincial supervision and spot checks on plastic pipe (pipe fittings) products throughout the province. The results show that the quality of plastic pipe (pipe fittings) is significantly improved.

A total of 70 batches of 52 plastic pipe (pipe fittings) production enterprises in 9 regions including Shenyang and Dalian were spot-checked. 65 batches of products were qualified in physical quality, and the pass rate of product physical quality was 92.9%, compared with 2009 products. The sampling rate of physical quality was increased by 8.6 percentage points, and the product quality was significantly improved. Unqualified items are hydrostatic test, density, tensile yield strength, and product identification.

Hydrostatic test, density and tensile yield strength are important technical indicators for plastic pipes (pipe fittings). Once the unqualified plastic pipes (pipe fittings) of these three projects are in use, once the water pressure is instantaneously excessively high, they are prone to burst or run. Takes a drip, causing serious damage to the user.

The main reasons for the failure: First, the company's production process in the key aspects of the control is not strict, can not effectively control the quality of products; Second, companies to reduce costs, excessive addition of auxiliary materials or do not meet the requirements of recycled materials; Third, companies only focus on standards The physical quality requirements in the article ignore the labeling requirements.