Fin type product introduction
Type B uses the national standard GB7148-81 and the international ISO7150/1-1948 standard salicylic acid photometric method as the basic test means, supplemented by sample colorimetric reaction pretreatment, to achieve rapid and accurate colorimetric determination of samples, with stable,SensitiveReliable and mercury-free.
The finned product is a device that uses the fin form to increase the surface area, thereby improving the heat dissipation efficiency. It is characterized by simple and compact structure, low production cost, good heat dissipation effect, and easy to realize mass production. Finned products are usually composed of metal fins and a base, and the fins have various shapes, such as spiral, right-angle, etc., to increase the heat dissipation surface area. In practical applications, finned products can dissipate heat through natural convection or forced convection, which is suitable for heat dissipation needs in different occasions.
Fin-type products are widely used in electronic equipment, mechanical equipment, automobiles and other fields. In electronic equipment, finned radiators can effectively reduce the temperature of components and improve the stability and life of equipment; in mechanical equipment, finned heat sinks can help reduce the temperature of lubricating oil or coolant to ensure efficient operation of equipment; In the automotive field, finned radiators can help dissipate heat from components such as engines and gearboxes to ensure smooth operation of vehicles.
In general, finned products with its simple and efficient heat dissipation principle and a wide range of applications, has become one of the indispensable important components in various industries, and has also played a positive role in improving equipment performance and extending life.
Key words: heat exchange equipment
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Type of ammonia nitrogen analyzer
Ammonia nitrogen analyzer according to the different test standards, there are A, B type. Type A is GB7479-87 by Nessler' s reagent colorimetric method. Type B adopts the national standard GB7148-81 and the salicylic acid photometric method specified in the international ISO7150/1-1948 as the basic testing method, supplemented by the sample colorimetric reaction pretreatment, to realize the rapid and accurate colorimetric determination of the sample, which has the advantages of stability, sensitivity, reliability and mercury-free.
Operation steps of ammonia nitrogen analyzer
Pour distilled water or ultra-pure water into a cuvette (about 2/3 height); wipe the water marks and fingerprints on the outer wall with a non-falling paper towel or soft cloth, then put it into the measuring seat of the instrument and cover the shading cover.
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