Blast Oven as one of the commonly used biological laboratory test equipment, its use is simple to operate, versatile, selection is very important, oven blast equipment belongs to a small industrial oven, and it is the most simple baking temperature equipment one. How to choose the blast drying oven equipment? 1. Temperature technical requirements for blast drying ovens . The temperature performance of the blast drying oven includes the following important parameters: 1) Temperature control range. Generally, the temperature control range of the blast drying oven is RT+10~250°. Note that RT stands for normal temperature and strictly means 25 degrees, which means room temperature, that is, the temperature control range of the blast drying oven. 35 to 250 degrees, of course, if the ambient temperature is higher, then the temperature control range should be increased accordingly, for example, if the ambient temperature is 30 degrees, then the minimum temperature allowed to be controlled is 40 degrees, for low temperature test (such as 25 degrees) The temperature control system of the blast drying oven selected during the test needs to be cooled, and the incubator is more suitable) 2) Temperature uniformity The temperature uniformity of the blast drying oven complies with the specification of GBT 30435-2013 electric drying oven and electric blast drying oven. The minimum requirement is 2.5%. There are detailed algorithms in this specification, for example, for example The oven temperature is 200 degrees, then the test point temperature is not lower than 195, and the maximum temperature is not higher than 205 degrees. The temperature uniformity of the oven is generally controlled at 1.0~2.5%, and the uniformity of the blast drying oven is generally about 2.0%, which is higher than 1.5%. If it is necessary to use less than 2.0% uniformity, it is recommended to use a precision hot air circulation oven. 3) Temperature fluctuation (stability) This refers to the fluctuation range of the test temperature point after the temperature is constant. The specification requires positive and negative 1 degree, and good can achieve 0.5 degree. This can be done by observing the meter, generally not much. Access. 2. Material selection problem of blast drying oven . The studio of the blast drying oven (also called the liner) is usually made of stainless steel, some use SUS304, some use SUS201, and the stainless steel is mirrored and brushed. Of course, some manufacturers use galvanized steel to reduce the cost. The overall price difference is not Very large, but in terms of materials, mirror > brushed SUS304 > sus201 > galvanized steel, it is recommended to use mirror SUS304 material, because it is very practical in terms of corrosion resistance, finish, etc., and the cost difference is not very large. 3. The blast drying oven purchase details . There are some details of the workmanship problem, we must pay attention to it, because there are so many blast drying ovens on the market, it can be said that the appearance is similar, but careful attention to the details will find a lot of differences, and then infer the manufacturer's materials and work. For example, the Enova series of EHL series blast drying oven liners have rounded corners, two sides of the casing, and rounded corners on the door. These are very practical and practical, not only look good, work beautifully, but also prevent The burrs prevent the liner from leaking and accumulate dirt. On the contrary, some manufacturers use plastic handles, which are low in strength and not durable. These details can be processed from the side. Organic green tea extract powder is extracted from green tea. We only select the best organic tea as raw materials in extraction. Its origin and health have been strictly confirmed.
Green tea is different from black tea and oolong tea because it is not fermented. Even if all three types of tea come from the same plant, their different preparation methods will affect the nutritional content of each tea.
Because it is not fermented, green tea still retains its polyphenols, natural antioxidants. Antioxidants protect the body from free radical compounds that damage healthy cells. Green Tea Extract,Organic Green Tea Extract Powder,Green Tea,Organic Green Tea Extract Organicway (xi'an) Food Ingredients Inc. , https://www.organicwayinc.com