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According to Xinhua News Agency: "at about 14:45 on July 4, 2017, the gas leakage occurred during the construction of Huaxing Road in Ningjiang district, Songyuan City, Jilin Province. The gas company exploded during the rush repair, affecting the medical staff and patients in the nearby hospitals. According to the Songyuan municipal government, as of 6:00 on the 5th, 5 people were killed in the accident, 89 people were hospitalized and 14 of them were seriously injured.
After the accident, the main leaders of Jilin provincial Party committee and government rushed to the scene to guide the rescue. Songyuan municipal Party committee and government urgently mobilized fire, health, public security, public utilities, gas and other departments to carry out emergency rescue to prevent secondary accidents and spare no effort to rescue the injured. The specific cause of the accident is under further investigation. At present, the follow-up treatment and rescue work is progressing in an orderly manner. " Not long ago, at about 10:00 on July 2, 2017, the sunny sand section of the natural gas pipeline collapsed and sideslipped due to the recent continuous heavy rainfall, which caused the gas pipeline to collapse and cause leakage and explosion. Eight people were found dead and 35 injured. Many such tragic accidents make natural gas safety put forward again. According to incomplete statistics, in the first half of 2017, there were 389 gas explosion accidents in China, resulting in more than 500 injuries and 58 deaths.
The explosion of gas pipeline is not only caused by human operation error or external factors, but also the adverse effect of PE PE physical properties test not up to standard. In the social environment where the government pays attention to people's livelihood and people's safety, we can't deal with the application of such dangerous goods vaguely. We must be strict with the standards and choose carefully!
The performance test standards of gas pipeline are as follows:
Density -- GB / T 1033-1986 -- density balance
Melt flow rate -- GB / T 3682-2000 -- melt flow rate meter
Oxidation induction time -- GB / T 17391-1998 -- differential scanning calorimeter
Moisture content -- ASTM d4019-1994a -- moisture meter
Carbon black content -- GB / T 13021-1991 -- carbon black content analyzer
Carbon black dispersion -- GB / T 18251-2000 -- carbon black dispersion tester
Volatile content -- GB / T 12010.4-89 -- electric blast box
Hydrostatic testing -- GB / T 6111-2003 -- pipe hydrostatic testing machine
Elongation at break -- GB / T 8804.3 -- universal testing machine
Longitudinal retraction rate -- GB / T 6671-2001 -- electric blast box
Resistance to slow crack growth - GB / T 18476-2001 - plastic pipe milling machine
Rapid crack propagation resistance - ISO 13478:1997 / GB / T 19280-2003 - rapid crack propagation resistance test for RCP pipes
Since its establishment in 1994, Chengde Jinjian testing machine, after more than 20 years of development, has developed from a single testing instrument for plastic doors and windows to a physical property testing equipment for all high score products in plastic profiles, pipes, engineering plastics, medical industry, automobile industry, aerospace, textile and civilian products, with more than 40 product series and more than 100 specifications and models.