What does waterproofness mean? According to the specification, if something can be called waterproof, it must be able to withstand a minimum water column of 1300 MM (a 1.3-meter-high water column with a diameter of 1 meter acts on the substance and there is no moisture penetration in 2 minutes). . But this standard is set very low, for example, when sitting in a wet chair, this water column is usually not enough to block the infiltration of water. Xinbao Shi film itself contains a water column of 10,000 MM or more. When combined with fabrics, this value is multiplied by more than 200,000 MM. What is the meaning of breathability? This shows that the clothes can discharge the body's moisture to the outside in the form of water vapor. There are many metrics and the results are not comparable. Therefore, the Hohenstein Institute developed a metric on skin samples that is gradually being recognized as the RET value. It is used to calculate the resistance to water vapour infiltration. The less resistance the body has to pass through the clothes to reach the outside world, the better the air permeability of the clothes. What does windproofness mean? There is also a specific standard for wind resistance: no wind can penetrate the fabric. To date, except for a sealed jacket structure, only the film provides 100% stable wind resistance. This functionality is very important for windproof cooling. The air-cooling effect means that the subjectively perceived temperature when the person is in the wind is much lower than the objective temperature. Functional testing: The quality tested does not just mean good quality! test! test! test! It is a rumor of functional clothing. However, this does not mean that the functions have been detected, even if the trademark mentions this function. Only a few suppliers have multi-tiered quality assurance systems. For example, each product of Xinbao Shi must be subjected to rigorous laboratory tests before, during and after production to ensure the promised quality assurance to consumers. In the experiment, water resistance, air permeability and other functions were repeatedly tested; careful consideration was also given to the decisions on cutting, material selection and details. Each manufacturer that Xinbao is suitable for must adhere to strict principles and obey the product testing standards. Even the retailer's products have to be carefully tested in the laboratory. Slat Chat Set, Plate Chat Set, Outdoor Slat dining Set, Patio Slat dining Set Ningbo Jiangbei Xiangyuan Leisure Products Co., Ltd. , http://www.china-outdoorfurniture.com