Chemistry Physics Calibration is defined as the act of making sure that a scientific process or instrument will produce results which are accurate.




Moisture meters are used to measure the percentage of water in a given substance. This information can be used to determine if the material is ready for use, unexpectedly wet or dry, or otherwise in need of further inspection. Wood and paper products are very sensitive to their moisture content. Physical properties are strongly affected by moisture content and high moisture content for a period of time may progressively degrade a material.

Temperature and humidity testing is an umbrella term. It’s an engineering and manufacturing generalization for a host of environmentally stressful experiments such as high/low temperature testing, moisture resistance testing or temperature cycling testing. Procedures like temperature humidity bias testing also fall under the umbrella.

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An electrical conductivity meter (EC meter) measures the electrical conductivity in a solution. It has multiple applications in research and engineering, with common usage in hydroponics, aquaculture, aquaponics, and freshwater systems to monitor the amount of nutrients, salts or impurities in the water.

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A hydrometer is an instrument used for measuring the relative density of liquids based on the concept of buoyancy. They are typically calibrated and graduated with one or more scales such as specific gravity.
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Ultraviolet–visible spectroscopy or ultraviolet–visible spectrophotometry (UV–Vis or UV/Vis) refers to absorption spectroscopy or reflectance spectroscopy in part of the ultraviolet and the full, adjacent visible regions of the electromagnetic spectrum. This means it uses light in the visible and adjacent ranges. The absorption or reflectance in the visible range directly affects the perceived color of the chemicals involved. In this region of the spectrum, atoms and molecules undergo electronic transitions. Absorption spectroscopy is complementary to fluorescence spectroscopy, in that fluorescence deals with transitions of electrons from the excited state to the ground state, while absorption measures transitions from the ground state to the excited state.
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A pH meter is a scientific instrument that measures the hydrogen-ion activity in water-based solutions, indicating its acidity or alkalinity expressed as pH. The pH meter measures the difference in electrical potential between a pH electrode and a reference electrode, and so the pH meter is sometimes referred to as a “potentiometric pH meter”. The difference in electrical potential relates to the acidity or pH of the solution.

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A viscosity tester is a pharmaceutical instrument that you will use in testing the viscosity of certain pharmaceutical fluids. You can also identify it as viscometer, rheometer or a viscosity meter in different avenues but it is one instrument. It is an instrument that you will use in a pharmaceutical laboratory to measure the internal flow of fluid.

Tỷ trọng kế


The concentration meter is designed to draw gases around it under the atmospheric pressure. If excessive pressure is applied to the gas inlet (GAS IN) and outlet (GAS OUT) of the concentration meter, measuring gases may leak out from its inside and may cause dangerous conditions.
Quang phổ tử ngoại khả kiến UV VIS

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