From the current situation of the National Standardization Technical Committee of plastic pipe, hose clamps and pipe sub-technical committee was informed that there are seven plastic pipe, hose clamps and pipe fittings new national standards have been formally implemented.
The seven new national standards are: GB / T15819-2006 Irrigation polyethylene (PE) pipe by the plug-in pipe caused by environmental stress cracking sensitivity test methods and technical requirements, GB / T5836.1-2006 Building drainage Standard Specification for Polyvinyl Chloride (PVC-U) Pipe, PVC / U (PVC-U) Pipe, GB / T0006-2006, ) GB / T20201-2006 Acrylonitrile-butadiene-styrene (ABS) pressure piping systems - Part 1: Pipe, GB, Acrylonitrile - butadiene - styrene (ABS) pressure piping systems - Part 1: Fittings - T20207.2-2006.
According to Zhao Qixui, secretary general of the Technical Committee of Plastic Pipe, Pipe Fittings and Hose Clamps Fittings, the new national standard released this year is based on international standards. According to the changes in domestic and foreign materials technology, pipe processing technology and environmental protection requirements, Some of the content has been revised. Among them, the water supply with PVC-U pipe GB revision of the main technical content: an increase of the resin K value requirements, prohibit the use of lead salt stabilizer to improve the impact of falling hammer impact test energy, some of the relevant foreign advanced standards Technical indicators, adjust the hydraulic test of the ring stress, an increase of system suitability test and size grouping and stereotypes, etc .; building drainage with PVC-U pipe and pipe GB, specifications from 40mm ~ 160mm expanded to 32mm ~ 250mm, and municipal drainage With the pipe size is different, the pipe connection to increase the sealing ring connection, cancel the 'excellent product' and `qualified product` classification, an increase of pipe, pipe fittings size requirements. In the entire hose clamps market began to have a new trend.
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