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Field parameters including pH, temperature, specific conductivity, and dissolved oxygen (DO) were measured using a portable water quality meter (Thermo-Scientific Orion Star A329 Portable Meter).

pH meters are electric appliances used for measuring the- alkalinity or acidity of a solution. pH is measured using potentiometric methods or pH indicators such as indicator solutions or strips ...

The Hach DR 2700 Spectrophotometer can be used for more than 130 analytical methods. All of the chemistries and supplies needed for these tests are available from Hach. The spectrophotometer can ...

Coast Guard personnel and photojournalists were onboard when a People’s Liberation Army Navy (PLA-Navy) helicopter, tail number 68, approached at 8:39 a.m., coming as close as three meters to the BFAR ...

The best portable projector offers big-screen performance in a small-form factor that you can easily carry around. Ideal for presentations, screening films, and gaming, we tested a range of models ...

A truly portable power station -- not the biggest or the most powerful, but it fits into a backpack for ease of transportation.

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. It’s never been easier to move your music from room to room (and even outside) than with ...

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