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目前显示的是 五月, 2024的博文

What Is Calibration Gas Used for

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Calibration gas   is a specific type of specialty gas that serves a crucial role in various industries and applications. It is used to calibrate, test, and verify the accuracy of gas detection and analysis instruments, ensuring they provide reliable and precise measurements. Calibration gas is an essential component in safety, environmental monitoring, industrial processes, and scientific research. In this article, we will explore the uses and importance of calibration gas in detail.   1. Calibration of Gas Detection Instruments:   Gas detection instruments are widely used in industries where the presence of specific gases poses potential safety and health risks. These instruments are essential for monitoring and alerting personnel to hazardous gas leaks or unsafe concentrations of gases. Calibration gas is used to confirm that these instruments are functioning correctly and providing accurate readings.   - Portable Gas Detectors: Devices like personal gas monitors, single gas detector

Neon, Ne Rare Gas

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  CAS NO  7440-01-9 UN NO  1065 EINECS NO  231-110-9 Molecular weight  20.1797(6) Appearance  Colorless, odorless Melting point  -248.6 ℃ Boiling point - 245.9℃ Density  0.9002 g/L DOT Class  2.2 Label  Non-flammable Gas Neon  is a colorless, odorless, non-flammable noble gas. Of all the noble gases, the discharge of neon is the strongest at equal voltages and currents. Neon is the third most abundant element in the Earth's crust, after argon and helium, but it is the most abundant element in the atmosphere. Its content in the atmosphere is about 18.2 cubic centimeters in 1 cubic meter of air. At normal pressure, neon liquefies at  -246.05°C  and freezes at -248.6°C. Neon is obtained as a by-product from the atmosphere in the form of a neon-helium mixture during cryogenic rectification separation. The pure components neon (Ne) and helium (He) are extracted from the resulting neon-helium mixture by several methods:  1. Adsorption method, based on the ability of neon, unlike helium,