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Instructions for the Use of a Refractometer

A refractometer such as brix refractometer or salinity refractometer is a laboratory device used to measure the index of refraction of light as it passes through a solution. This measurement allows the concentration of a solution to be calculated; also, any foreign substances can be identified.

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How to Add Water to a Delco Battery

There are three kinds of Delco batteries. The more common ones today (especially in automotive batteries) are maintenance-free batteries. These are sealed batteries and require no maintenance whatsoever. Another kind is called the low-maintenance or hybrid battery. These require little maintenance, but on occasion, if the battery has been over-charged, you may have to add water to the cells.The battery refractpmeter is one important tool. The last type of battery is the filler-cap batteries. While all batteries should require little maintenance, conditions can occur when the hybrid and filler-cap batteries should be visually inspected and maintained to achieve their longevity.

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How to Cycle a 24 Gallon Salt Water Tank

The nitrogen cycle is the life support system of an aquarium. The cycle is a chain of chemicals and bacteria that are responsible for keeping the aquarium free of organic waste. Without an effective cycle, the tank becomes a toxic soup of chemicals that will harm or kill the inhabitants. To get a new aquarium ready for fish, it is essential to biologically mature the filter by encouraging the growth of highly specialized bacteria in the filter system. This process is vital for the safety and welfare of all aquatic animals.The salinity refractometer , aquarium refractometer or seawater refractometer is a important tool.

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How to Calculate Hydration Levels

Knowing your body's hydration level is important for maintaining a normal level of water. Water makes up for 60 percent of body weight and the body uses it to monitor temperature, protect organs and joints, transport oxygen to cells and eliminate waste. If body fluid is lost and not replaced quickly, dehydration occurs. You lose water through perspiration, urination and respiration. Calculating body hydration can ensure you are maintaining a healthy water intake amount. There are three common methods  such as refractometer, Sweat Patches, Urine Color Chart to measure body hydration levels.

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How to Test for Antifreeze in My Fire Sprinkler System

Most commercial and large residential buildings have fire sprinkler systems to protect residents in case of a fire. To prevent water from freezing in the fire sprinkler lines, antifreeze liquid is added. The antifreeze lowers the freezing point of water so the sprinkler system can operate normally during winter. The type of antifreeze or amount varies by local building ordinances. You can test a fire sprinkler system using a device called a antifreeze refractometer, which is a small field testing device that lets you test various liquids to find out their composition and freezing temperature.

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How to Make a Pinhole Refractometer

Distinguishing an aquamarine gem from a blue topaz or a synthetic blue spinel is not easy. The trouble is aquamarine is by far the most valuable gem. So if you can't distinguish it from inferior stones, you could be in for an expensive and disappointing mistake. The same problem arises with other precious stones. Gemologists have a selection of tools to help them identify the type of stone they are examining, which you can also learn to use. Among them is the refractometer. Refractometers test a stone's ability to bend light by measuring the angle created by a ray of light's path before and after it passes through a gem. Every stone has a unique refractive index, so if you can measure the refraction index, you can identify the stone.

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