I. Preparation of salt spray tank neutral salt spray solution
The chemically pure sodium chloride in accordance with GBl266 is dissolved in the third grade water in accordance with GB6682, and the concentration is (50±10) g/L. The pH of the test solution was measured at 65 ° C using a pH test paper of 6.5 to 7.5. When it is out of range, it can be adjusted by adding analytical hydrochloric acid or sodium hydroxide solution. The prepared solution needs to be filtered before use.
Preparation of salt spray tank acetate mist solution
Firstly dissolve the chemically pure sodium chloride in accordance with GBl266 in the third grade water in accordance with GB6682, the concentration is (50 ± 10) g / L and then adjust the pH value of the solution with acetic acid, so that it is in the range of 3.1 ~ 3.3, the PH value is used The collected salt spray samples were measured. The pH should be measured at 25 ° C. The prepared solution should be filtered before use.
Preparation of copper-accelerated acetic acid/salt solution in salt spray box
*The step will be in accordance with GBl266 chemically pure sodium chloride solution in accordance with GB6682 tertiary water, the concentration is (50 ± 10) g / L. In the second step, reagent grade copper dichloride (CuCl221120) was added to 3.8 liters of brine for dissolution and thorough mixing. The third step is to adjust the pH of the solution with acetic acid to a value in the range of 3.1 to 3.3, which is measured using the collected salt spray sample. The pH should be measured at 25 ° C. The prepared solution should be filtered before use.
Xu Lili (1206324394) 8:24:49
Technical Articles Xu Lili (1206324394) 8:26:18
The high-rise residential fire in Shanghai was basically extinguished and 49 people were killed. Xu Lili (1206324394) 8:26:45
The fire broke out in the Jiaozhou Road apartment building in downtown Shanghai. As of 3 am on the 16th, the number of victims increased to 49. Appointed by President Hu Jintao and Premier Wen Jiabao of the State Council, State Councilor and Minister of Foreign Affairs Meng Jianzhu led a State Council working group and flew to Shanghai on the early morning of the 16th to guide rescue and rehabilitation. Meng Jianzhu announced that the State Council investigation team was set up to investigate the cause of the accident; he went to the hospital to express his condolences to the injured.
At 1 o'clock in the morning on the 16th, Minister of Foreign Affairs Meng Jianzhu, accompanied by Shanghai Municipal Party Committee Secretary Yu Zhengsheng and Shanghai Mayor Han Zheng, went to the fire scene of the residential building in Jiaozhou Road, Shanghai to learn about the new progress of the rescue work.
After that, Meng Jianzhu and his entourage came to Shanghai Ruijin Hospital to see the injured in the fire.
As of 3 am on the 16th, the fire in the residential building of Jiaozhou Road in Shanghai has killed 49 people. The relevant departments are further investigating more specific casualties and the cause of the fire.
Shanghai high-rise fire
At 14 o'clock on November 15, 2010, a 28-story teacher's apartment in Yuyao Road, Jiaozhou Road, Jing'an District, Shanghai suddenly caught fire. According to witnesses on the scene, the fire broke out from the scaffolding of the façade wall construction and began to spread rapidly to the residential building.
At 14 o'clock on November 15, 2010, a 28-story teacher's apartment in Yuyao Road, Jiaozhou Road, Jing'an District, Shanghai suddenly caught fire. According to witnesses on the scene, the fire broke out from the scaffolding of the façade wall construction and began to spread rapidly to the residential building.
According to nearby residents, there are many retired teachers living in the teacher's apartment. According to public information, Jiaozhou Teacher's Apartment was completed in January 1998, with a total of 500 households. The fire was located between the 10-12 floors. The whole building was quickly surrounded by fire, and many residents in the building did not evacuate. Some residents climbed the roof and shouted "Help". The police pulled up several cordon lines on several streets around the scene.
The beginning and end of the fire
"Too scary!" A teacher named Wei told reporters that the home of a colleague in the school was in the building where the fire broke out, and he learned about the fire. "That building is just outside the exterior wall decoration, there are scaffolding outside, so the whole building is spread," she said. At that time, she felt that "every window has a flame." People saw such a serious fire on the scene. "The legs can't stand. "".
At 14:40, the helicopter had already rushed to the scene, but it was impossible to get close to the building due to the fire.
At 16:00, the * helicopter flew off the top floor, probably because the smoke on the roof was too big, and the cable was too difficult to be abandoned. A few water guns on the top of a building next to it are spraying water on the roof of the Jiaozhou teacher's apartment.
An ambulance sent the wounded to a nearby hospital for treatment, but there were still more than a dozen residents on the 28th floor waiting for rescue.
Within two hours of the accident, many wounded people were rescued at the scene of the accident, and more than ten fire engines were also being fired. After an old man who lived on the 27th floor was successfully rescued, he was covered with carbon ash and his family fell in love. Some people at the scene said that there are still family members who have not escaped at the scene of the fire and are extremely anxious.
At about 17 o'clock, the fire-fighting lighting car had arrived at the scene. Through the light, Yi Cai.com reporters can still see that there are still residents in the high-rise section of this building that have not been rescued. They are kneeling on the outdoor scaffolding and want to climb down, but because the fire is too strong, they cannot continue to approach. You can only wait for the rescue in a location where the fire is small. In addition, the scaffolding debris and rubble are falling down on the scene, and the situation is very critical.
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