I believe everyone in the usual instrument calibration and calibration of the device must have noticed its basic problems, for some of its common sense is certainly understand. However, some of its common sense may not know, if it is able to more fully understand the words, then in peacetime work is certainly beneficial and harmless, so here we WorldCom to explain to you some of their common sense, I hope everyone will have some help. Instrument calibration and instrument calibration and other related to the clinical test results Instrument measuring instruments should be calibrated in advance by the instrument to enter practical applications, all can trace to the national benchmark instruments or apparatus should be designated by the state authorities for instrument calibration, for Those who can not directly trace the more complex equipment, laboratory should require manufacturers to regularly calibrate the instrument in accordance with the relevant provisions. At the same time the laboratory should also be based on the relevant technical requirements or manufacturers to choose the appropriate calibration of the test instrument calibration. Instrument Calibration The term "calibration" has been used in classic instrument management and is now referred to as "instrument calibration" in instrument measurement management. Calibration is the total work required to determine the indication error of a measuring instrument (including other metrological functions if necessary). Similarities and differences between instrument calibration and test Instrument calibration and verification are two different concepts, but there is a close relationship between the two. Instrument calibration is generally more than the school measuring instruments with high precision measuring instruments (known as the standard instrument) is compared with the instrument being calibrated to determine the error of indication of the instrument being calibrated, sometimes including part of the instrument measurement performance, but often Instrument calibration instrument only need to determine the indication error, if the instrument calibration is the verification of the value of the test error, which can be said to be part of the verification work, but the instrument calibration can not be regarded as the instrument test Moreover, the instrument calibration The requirements of the conditions are not as stringent as the instrument test, instrument calibration can be carried out at the production site, and the test must be conducted in the test room. It is imprecise to interpret instrument calibration as a process of adjusting a measuring instrument to a specified error range. Although the instrument calibration process can be adjusted, but the adjustment does not mean that the calibration.
Fully refined paraffin refers to a product obtained by using oil-containing wax as the raw material, degreased by sweating or solvent, and then refined by clay or hydrogenation.
Fully refined paraffin is also called refined white wax. The appearance of fully refined paraffin is white solid, with block and granular products. Its product has a higher melting point, less oil content, no sticking at room temperature, no sweating, no greasy feeling, waterproof, moisture-proof It has good electrical insulation. Because of its high degree of sophistication and low content of fused aromatic hydrocarbons. It has good chemical stability and light, good thermal stability, strong toughness, good plasticity, white color, no mechanical impurities and moisture, and no smell. Fully refined paraffin can be Soluble in: benzene, ether, chloroform, carbon disulfide, carbon tetrachloride, turpentine, petroleum, fixed oils.
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April 19, 2024