According to the temperature test method in GB / T10592-2008 high and low temperature test chamber technical conditions standard, it contains 12 points, in this article we first understand four of them: 1, the location and number of test points: high and low temperature test chamber standard The developed temperature test method (upper) defines the upper, middle, and lower horizontal test planes in the laboratory chamber, referred to as upper, middle, and lower levels. The distance between the upper layer and the top surface of the working room is 1/10 of the height of the working room, the middle layer passes through the geometric center of the working room, and the lower layer is 10mm above the sample rack of the lowest layer. The test points are located on the three test planes, the central test point is located in the geometric center of the studio, and the distance from the remaining test points to the wall of the studio is 1/10 of their respective lengths. But for the test chamber with a volume of no more than 1m3 in your studio, the distance is not less than 50mm. 2. Test procedure: Select the highest nominal temperature and the lowest nominal temperature within the adjustable temperature range of the test chamber. Make the test chamber run according to the procedure of low temperature first and then high temperature. The temperature at the center point of the working space reaches the test temperature and stabilizes for 2 hours, and the temperature of all test points is tested once every 30 minutes for 30 minutes. 3. Wind speed test method This test is carried out under no-load and room temperature conditions. The number and location of test points are the same as the first point in the test procedure. Test procedure: 1. Hang fine cotton yarn or other light objects on the test point, close the door and turn on the fan to find the dominant wind direction of each test point. 2. Place the anemometer at the test point, and measure the wind speed at each test point after closing the door. Calculation and evaluation of test results: Correct the measured wind speed value according to the correction value of the anemometer. Calculate the average value of wind speed of all test points according to formula (8): V = (YA + VB + …… + VM) / n ……………… (8) where: V—— wind speed of test box, unit is meter Per second (m / s); VA ..., VM—the wind speed at the measuring point, in meters per second (m / s); n—the number of measuring points. The calculation results shall comply with the provisions in the test box performance items and indicators. 4. Insulation performance test method The temperature of the test chamber is stable at the highest working temperature point of 2h. Check the temperature of the outer wall of the test box with a surface thermometer, and observe the condition of the outer surface at a stable minimum working temperature for 2h.
Wine box, usually refers to the box that holds bottled wine. Materials are: Wooden Box, leather box, metal box and paper box. Different shapes for shock and decoration.
Wine box, also known as red wine box, is usually called wine packaging box or red wine packaging box. As the name implies, it is the outer packaging of wine (red wine), which has the function of protecting red wine for convenient transportation and storage, and at the same time, it is beneficial to wine ( red wine).
1. Wine wooden box (red wine wooden box)
Usually include log wine boxes (multi-purpose materials include pine, paulownia, etc.), imitation mahogany wine boxes (multi-purpose materials include MDF, etc.), and the shapes are diverse and are mostly used for medium and high-end wine packaging.
2. Wine leather box (red wine leather box)
Most of the wine leather boxes (red wine leather boxes) are made of PU, PVC and other artificial leather. The leather packaging is more suitable for the characteristics of wine, and can be divided into single-pack, double-pack, four-pack and six-pack in terms of capacity.
3. Metal wine box (metal wine box)
There are few metal wine boxes in the market and are not widely used. Most of them are made of aluminum alloy, iron, and other alloys.
4. Wine carton (red wine carton)
Wine cartons are mostly made of cardboard, corrugated paper, special paper, etc. Since the raw materials are paper, which is convenient for secondary recycling, the shape can be diversified, and other processes are convenient, so wine cartons are widely used in wine packaging.
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