How can the fluorine content of polymer be tested?
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One method is by solubilizing a portion of the polymer and analyzing via GC/Mas spectrometer. Another means would be to burn a portion of the polymer and trap the gases in a trap of sodium hydroxide solution. The solution could then be tested via specific ion electrode and the proportion of flourine could be calculated by knowing the volume of the trap solution, the concentration of fluoride in the trap and the mass of material burned.There are several other means of performing this analysis. One non-destructive test is via X-ray fluorescence. Each element has characteristic fluorescent lines. This method is not terribly sensitive for fluorine but might work well if one was dealing with percentage levels of fluorine.
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Try Copper Test by points
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Flouropolymers are inert, meaning they don't react with other chemicals.  They also have the lowest known friction of any material (run your finger or slide a glass across a well varnished bar or table and you'll know what I mean)  They Contribute to paint's stain resistance by forming a sort of shield inside the paint (because they don't chemically react) and also give you some very shiny paint.  You can find a lil more about different polymers at my source link...  Good luck
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This is Measured in MTBF or Mean Time Before Failiure. Noramlly if you know the manufacturer you can get information on that through thier website.
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test tube- observing for chemical reations
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According to a book I read some time back, "Mellor's Modern Inorganic Chemistry," fluorine is stored in copper lined cylinders.  The F reacts with the Cu, forming a layer of CuF2, which prevents further attack.  Here's a good document on everything you ever wanted to know about handling fluorine:\nhttp://www.llnl.gov/es_and_h/hsm/doc_14.06/doc14-06.html\nI couldn't find anything on cost.
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There are various means of determining this, and without any specific data on what elements are involved in the answer you are looking for, the link below is the best reference I can find that can answer this question in a mostly generalized way.
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The basic check is: measure the mass, divide by the volume of water displaced, check that the density is correct. After that you should still do a chemical analysis to make sure there aren't other heavy metals, like uranium or lead mixed in.
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Use the second derivative test, not sure exactly what it is still but it should be easy to find on the internet.
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Test for sulphate\nIt is best to perform the wet test\nNow add salt:sodium carbonate in the ratio 1:3 in a beaker and dilute it with 20cc of water. Next heat it for 10-20 minutes, and then let it cool, now filter the extract. The extraxt(filtrate) is called Soda Extract or Sodium Carbonate Extract\n\n1) For sulphate\nAcidify some extract with HCl acid and add Barium Chloride\nWhite colour means sulphate\n2) for Cl\nAcidify extract with nitric acid and add silver nitrate, white means chlorine
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Need more specifics as to your problem.\n\nHowever, I assume you are trying to do a quantitation on a UV or vis absorbing substance.\n\nMake up  a set of standards of known concentration of your analyte in the solvent you will be analyzing in.  Then do some scans over the whole wavelength range. \n\nUsually pick the wavelength at the top of the largest absorbance peak, unless that is a wavelength which will have interferences from other substances present.  If so, then pick a wavelength with good absorbance that is not subject to such interference.
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http://polymer.bu.edu/pins/pins96.11.html\n\nhttp://chem.ch.huji.ac.il/~eugeniik/electrochemical_tutorials.htm
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dissolve the sample in KOH. Add AgNO3 and weigh the ppt. to obtain the halide content.
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Well i can't paste that on here for you...but consult this link; http://www.abb.com/GLOBAL/NOOFS/noofs187.nsf/viewunid/713C646EB0A24CCBC12569EE0036977F/$file/PS.pdf#search='MAKING%20POLYSTYRENE%2C%20process%20flow%20diagram'\n\nIf u can't access via the above link, go to http://www.search.abb.com Then type 'making polystyrene' or :PS Web 2001" Folow the first link...its a pdf file.
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One method that you can use to determine what type of fabric you have is a "burn test." For example, most natural fabrics will burn, but not melt. In contrast, man-made fibers often shrink away from the flame and melt. You can tell more about the fabric by the smell they produce. (see first source for details). \n\nFabrics are often evaluated by their thread count which is the number of threads in a square inch. The higher the thread count, the softer the fabric will feel. However, higher thread count fabrics won't be as strong as those with lower thread counts because the threads are thinner. (see second source for details).
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2 ways come to mind.\n\nYou make a series of solutions of increasing concentration as well as a blank (deionized water) and measure their absorbance in a spectrometer. You find a regression of the data and figure out the methylene blue based on its absorbance.\n\nStandard addition. You take unknown absorbance and add increasing concentrations of methylene blue to it. Graph the data and figure out the concetration corresponding to the y intercetp.
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->Pure fluorine (F2) is a corrosive pale yellow gas that is a powerful oxidizing agent. \n->It is the most reactive and electronegative of all the elements, and readily forms compounds with most other elements. Fluorine even combines with the noble gases krypton, xenon, and radon. Even in dark, cool conditions, fluorine reacts explosively with hydrogen. \n->It is so reactive that glass, metals, and even water, as well as other substances, burn with a bright flame in a jet of fluorine gas. \n->It is far too reactive to be found in elemental form and has such an affinity for most elements, including silicon, that it can neither be prepared nor should be kept in glass vessels. In moist air it reacts with water to form the equally dangerous hydrofluoric acid.\n\n->In aqueous solution, fluorine commonly occurs as the fluoride ion F-. Other forms are fluoro-complexes (such as [FeF4]-) or H2F+.\n\n->Fluorides are compounds that combine fluoride with some positively charged counterpart. They often consist of ions. Fluorine compounds with metals are among the most stable of salts.