Moisture changes alter paper's grammage, tensile strength, flexibility, and folding endurance, and cause expansion, contraction, curling, edge lift, wrinkling, and wavy edges.
Many factors affect Karl Fischer moisture analyzer (trace moisture analyzer) testing. Beyond the method itself, we must consider whether the sample is suitable: some substances are unsuitable, and during testing some substances distort the data and accuracy. It is therefore essential to understand these interfering factors.
A microwave moisture analyzer measures the moisture of a substance at microwave frequencies. It consists mainly of a microwave oscillator and a microwave attenuator, and is used mainly for measuring moisture in soil, cement, walls, and other building materials, as well as in paper, wood, feed, grain, coal, and similar materials.
Copper powder dissolves in nitric acid and hot concentrated sulfuric acid, slightly in hydrochloric acid. Heating in oxygen forms copper oxide—a redox reaction, not combustion. Pure copper is rose-red; its oxide film looks purple, hence 'red copper'.
Across every industry, a new technology goes through several stages from emergence to product to mass adoption. Want to know which stage moisture detection technology has reached? Let's take a look.
The accuracy of the Karl Fischer reagent titer directly determines the accuracy of sample measurement. Different test environments and the sealing performance of the entire apparatus greatly affect the titer, especially for samples demanding high measurement accuracy.
The infrared moisture analyzer is an online non-contact instrument for metallurgy, coal, chemicals, fiber, papermaking, tobacco, food, and construction, rapidly measuring moisture at every process point.
A moisture analyzer measures the water content of solids, granules, powders, pastes (slurries), liquids, and gases. It is used for moisture measurement of non-conductive materials such as wood, lignocellulosic substances like bamboo products and woodenware, Chinese medicinal materials, tobacco, cotton, paper, construction materials, and soil.
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