The high and low temperature alternating humidity and heat test chamber is an upgraded version of the high and low temperature test chamber series. It contains all the functions of high temperature, low temperature, humidity, constant humidity and heat, and alternating cycles. The temperature can be cycled between 25 ℃ ± 3K and the specified high temperature. , And its tolerance and rate of change should meet the requirements of the relevant standards. The total temperature tolerance of ± 3K is determined in consideration of the absolute error of measurement, the slow change of temperature, and the temperature change in the working space. However, in order to maintain relative Humidity is within the specified tolerance range, and the temperature difference between any two points in the working space must be maintained within a small range at any time. If the temperature exceeds 1K, the humidity condition will not meet the requirements. In order to maintain the specified Humidity and temperature fluctuations must be maintained within a range of ± 0.5K for a short time. Therefore, the change value of humidity is closely related to the temperature, which is why the rapid temperature change test box cannot open the humidity during the rapid temperature change test.
The relative humidity of the space of the high and low temperature test chamber can be kept within the limits given in the standard. Care should be taken to ensure that the conditions of the work space in the chamber are uniform and should be as close as possible to the conditions of the appropriate rotation of the temperature and humidity sensor device accessories The test sample should not be affected by the heat radiation from the adjustment process of the test box. The resistivity of the water used to maintain the humidity in the box should not be less than 500 ohms. The condensed water in the box should be discharged in time, and it should not be Reuse, measures should be taken to ensure that the condensed water will not drip on the test sample. According to this requirement of the standard, the Yashilin instrument purposely changes the circumference of the box to an arc shape without any edges and corners, so that the moisture formed by the humidity will not condense Water droplets are formed on the surface of the box, but fall from the arc angles around the bottom to the bottom of the box. Our company uses a drainage groove design, and the water drops are discharged from the overflow hole in the box.
Attachment: The size, nature or electrical load of the tested sample must not significantly affect the conditions in the box.
Sewing craft table is a specialized table designed specifically for sewing, crafting, and other related activities. It provides a dedicated workspace that is optimized for sewing projects, offering features and functionalities to enhance efficiency, organization, and comfort. Here are some key features and aspects of a sewing craft table:
Size and Surface Area: Sewing craft tables are typically larger than regular tables to accommodate sewing machines, fabric, and other crafting materials. They provide a spacious work surface for spreading out fabric, patterns, and tools.
Sturdy Construction: Sewing craft tables are built with durability in mind. They are often made of sturdy materials like wood or metal to support the weight of sewing machines and provide a stable work surface.
Ergonomic Design: Sewing craft tables are designed with ergonomics in mind to promote comfortable and efficient work. They are typically set at a height that allows for comfortable sewing and cutting. Some tables may offer adjustable heights to accommodate different users or sewing preferences.
Storage and Organization: Sewing craft tables often come with built-in storage options to keep sewing supplies and tools organized and easily accessible. They may have drawers, shelves, cubbies, or compartments designed to hold thread spools, scissors, pins, needles, and other sewing essentials. Some tables even have specialized storage areas for keeping sewing machines or sergers.
Cutting and Measuring Features: Many sewing craft tables have integrated cutting and measuring features to streamline the cutting process. They may include marked measurement lines, rulers, or even built-in cutting mats that protect the surface of the table.
Mobility and Portability: Some sewing craft tables are designed with wheels or casters, allowing for easy mobility and flexibility. This feature is especially useful if you need to move the table to different locations or store it when not in use.
Additional Features: Depending on the model, sewing craft tables may offer additional features such as adjustable sewing machine platforms, drop leaves or extensions to increase the workspace, built-in power outlets for plugging in sewing machines or other equipment, or even built-in ironing boards.
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