Yesterday, the Shanghai Municipal Bureau of Quality and Technical Supervision announced on the website the results of the special supervision and inspection of the bedding quality produced and sold in this city, and randomly selected 87 batches of products, covering the major production enterprises in this city. After inspection, 15 batches were unqualified, and brands such as Aussino and Little Sheep were on the black list. According to the national standards and relevant standards, the supervision and inspection shall be based on the instructions for use, fiber content, formaldehyde content, pH value, color fastness to dry rubbing, color fastness to perspiration, color fastness to water, color fastness to washing, and Projects such as decomposition of aromatic amine dyes and raw material requirements were examined. Among them, the unqualified pH value is the most common, 11 batches of products are exposed to this problem, the small sheep brand of satin plain sheets, Aussie brand quilt cover sheet set, seven-hole summer core is in the black list. It is reported that the pH of general healthy skin is between 5.5 and 7.0, which is weakly acidic. The pH value of bedding should be between 4.0 and 7.5. If it exceeds the pH range of the human body, it will affect the user's personal health. In addition, the five batches of products were found to be unqualified in fiber content, and the results were inconsistent with the measured results; the color fastness to perspiration of one batch was unqualified. Tips for purchasing textile products: 1) When consumers purchase products, they must recognize whether the contents of the logo are complete, whether they are marked with the safety technology category of textile products, and purchase the products produced by regular manufacturers in the formal channels as much as possible. For products that have doubts about product quality or are based on new materials, new processes, and new features, consumers can consult relevant inspection agencies to prevent being deceived. 2) Consumers should learn how to simply identify fibers. For example, silk products have a smell similar to burnt feathers when burned. 3) The sewing quality can be seen from whether the sewing stitch is uniform, fine, straight, with or without jumpers, and the number of thread ends. You can also gently touch the product with the back of the hand to see if there is any skin irritation; use the heart to gently support the quilt around, the filling is even and full. 4) When purchasing, you should consider whether the product is easy to clean. For some products that sew fabrics and fillers together, due to inconvenient washing, you should consider using with the quilt.
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The function of the water quality chlorophyll controller is to monitor and control the concentration of chlorophyll in the water body to maintain the stability and safety of the water quality. It can be connected with a digital Chlorophyll Sensor to continuously monitor the chlorophyll value of water quality. By monitoring the concentration of chlorophyll in the water, the degree of eutrophication of the water body can be assessed, and algae outbreaks in the water body can be detected and warned in time, as well as other pollution sources that may cause eutrophication of the water body. According to the concentration change of chlorophyll, the two relays or 4-20mA current output of the water quality chlorophyll controller can automatically adjust the operating parameters of the water treatment system, such as adjusting the aeration amount, adding chemicals, etc., to maintain the stability and safety of water quality . The water quality Chlorophyll Analyzer can monitor the chlorophyll concentration in the water body, help the farmers to grasp the water quality, take timely measures to adjust the breeding environment, and prevent the deterioration of the water quality from causing harm to the breeding organisms. It can also be used for the management of lakes, rivers and other waters, to monitor the concentration of chlorophyll in the water, to detect and warn of eutrophication in time, so that corresponding management measures can be taken to protect the health of the water ecosystem.
chlorophyll controller, chlorophyll transmitter, online chlorophyll meter
Suzhou Delfino Environmental Technology Co., Ltd. , https://www.daruifuno.com