Shaanxi: Building materials such as stainless steel is only 30% of qualified
Second quarter of 2009, Shaanxi Provincial Quality and technical supervision of production throughout the province and sales of cement, the construction of the pipe sleeve, PVC pipes, pipe fittings PVC, stainless steel, aluminum, wood, wooden floors, doors and other products of nine regular and random inspections. After examination, 513 lots of 367 lots qualified products, 71.5% of success. Among the most important advice for the man, almost 8 percent did not.
It is understood that all companies distribution of the sample panel with wood in the province of Shaanxi, has collected a total random sample of 80 batches tested, 17 lots, 21.2% success. The problem is essentially formaldehyde emission, the bond strength of resistance to bending surface and other projects have failed. union resistance the surface area exposed to the lack of laminated plastic and open to, resistance to lateral bending of the project can easily break the products do The hard-to ensure the overall soundness. Formaldehyde emissions are very harmful to human health, human eyes failure, significant respiratory stimulation WHO has classified formaldehyde as a carcinogen. wood floor relatively good quality, success rates of 85%, the main problem is erosion of the surface thickness swelling, bending strength of the project has failed.
The site has been found to control the quality of cement is relatively reassuring. The total of 158 manufacturing companies across the province sampling, sampling 166 lots, 154 lots of qualified personnel, in a kind of quality standards was 92.7%. The problems are mainly three days flexural strength, compressive strength of 3 days, 28 days compressive strength, flexural strength of 28 days, stability, no proposals chloride. Bending, compressive strength of building regulations will have serious repercussions the quality and stability of destroying the building easily lead to rupture of the tension, resulting in cracks of buildings, landslides and other accidents, chloride ions the excess capacity is corrosive to steel.
In addition, the isolated building approval rating of 60% manga pipe generally the main problem is the minimum thickness, compression performance, identification no. PVC pipe the success rate of 48.5% overall, the main problem is the tensile strength, density, minimum wall thickness, the average diameter, 20 ℃ no hydraulic pressure test. PVC tube type success 59.3% overall, the main problem is primarily the minimum wall thickness, the average diameter of the sleeve, keeping the mouth to an average diameter of the density, depth meshing, the lack of evidence of the oven. stainless steel tube of 58.3% overall success rate, the problems are mainly of manganese, nickel, chromium and other chemicals the standard specification. The overall rate of 93.3% aluminum, aluminum is mainly a problem in the quality of surface properties, chemical composition the project has failed. Doors success rate was 88.3%, mainly the performance impact of sandbags, solid wood door in wood identification name of species other projects are not responding.
It is reported that in Shaanxi Province Quality and Technical Inspection Quality required of municipalities and technical supervision departments in strict enforcement of product quality and other laws and regulations, lack of product quality companies in the sample and the law, and urge companies to delay the correction. The quality of the product and follow the above checks, to promote the industry to improve continuously the level of overall quality, build the confidence of consumers satisfied consumer environment.
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