specifically for brass
127858
You could determine the copper content of brass (an alloy of copper and zinc) in one of three general ways:\ngravimetric,\nvolumetric,\ncolorimetric.\n\nYou first need to dissolve a known mass of brass completely in nitric acid, neutralise, then transfer to a volumetric flask and make up to volume. \n\nIf you then choose to do it gravimetrically, you should then prepare a stable copper compound of high molecular mass OR you could electroplate out the copper and mass it OR you could simply add excess zinc metal, dissolve any left over zinc with say hydrochloric acid or sulfuric acid, dry and mass the copper. \n\nThere are a number of ways that you could titrate the copper: you could add excess potassium iodide which reacts quantitatively with copper to produce copper(I) iodide and iodine. The resulting iodine can then be titrated with standardised thiosulfate using starch as an indicator. You could also do a complexiometric titration with EDTA.\n\nIf you decide on a colorimetric method, you need to make a standard solution of copper (or brass of known copper content - better) and compare the absorbance of your brass solution with the standard. \n\nYou could do two different determinations and compare results.\n\nThere are many other possibilities, but i do not know what a board project is, or your level of expertise and what equipment you have available. If you need more detail, please re-post and i or someone will be able to help you further.
234206
Its possible usually the rivets are brass or copper alloy, if that helps.
429036
I play a 7 pc, double bass set of Tama Swingstars. Deepwell concert toms. 12", 13", 16" Toms and 2, 22" kicks.\n\nI use nothing BUT Zildjian cymbals. I have far too many to list here ranging from 8" splashs, to 21" Chinas.\n\nI use a mild non-abrasive soap and water on my drum shells. I like to use one of those shammois (water absorbant towels) that are used on cars... as it will absorb ALL the excess water THEN I treat the shell with a VERY light coat of a polish like (Lemon Pledge)... some shells can handle this and some cannot... Honestly I'd suggest you check out the Pearl web site for suggested cleaning agents for the Export series. \n\nI use Brasso brand brass cleaner on my cymbals. (LOTS of elbow grease BUT worth the effort). try NOT to touch the cymbals after ya clean them as the oils from your hands/skin will eventually tarnish the brass.  A good thorough cleaning will last a long time (perhaps as long as 6 months)... depending on how much you actually handle the cymbals and what type environment you keep them in. IF you choke them a lot with yer hands during performances... you should touch-up clean at least once a week. The key is to keep those oils from yer hands OFF of them.\n\nI use brilliant finish cymbals so the brasso REALLY brings out the shine for me... Consider that IF you're using say an Earth tone type finish OR some other non-shiny type cymbal.. the brasso won't work to shine the cymbal to a high sheen.... just things to consider.... IF you have one or some of these type non-shiny cymbals... I'd suggest you look at the cymbals makers web site and see what they suggest you use to clean them with.\n\nUnderstand that the tarnish won't seriously detract from the overall tonal qualities of the cymbal it just looks bad. \n\nAlso WD-40 is a great pedal/stand treatment. Will allow the stands to remain smooth during set-up and teardown for a long time... and eliminate squeaks from pedals and yer seat.\n\nOh yeah... and to hear the kind of music I'm into you can hear me play at www.myspace.com/jwoo10\n\nI record my drums in my home studio and make music using my computer and the internet by collaborating with musicians from all over the world.
677181
Try these links, they're in order of what I'd recommond and all cary titanium\n\nHope it helps! :)
185300
You might check with Home Depot, or another good local hardware store.
390070
bolt cutters would do the trick
488772
trumpet and french horn.  Less puttons to press
235099
Recently: Brass is risen up very much in the last few weeks, and keep rising!!! Crazy...
461478
visit\nhttp://www.diytrade.com/directory/global/buy/products-list/0902-t-i-1/Wire_Mesh.html
497696
you might try a figure 8 knot, or a stopper knot.\n\nhttp://www.chockstone.org/TechTips/Stopper.htm
558630
personally I use a16 penny nail that I clipped the head off of, they work great.
160238
try www.aresgalaxy.com
95135
Are you handloading or is this commercial ammo? Generally when the brass gets stuck in the chamber it's because your ammo is too hot. If you're handloading, back down on your powder charge 10% or so. If it's commercial ammo, find another brand.
439104
it depends what kind you want, like a rock band( guitar, bass, drums, keyboard)? orchestra? the kinds(percussion, woodwind, brass, strings) or specific( saxophone, trumpet, snare drum, cello).
135659
Poppet valve would be your likely answer.\n\nCheck valve is also acceptable.
76019
Dissolve salt in vinegar.  To clean copper wipe on with a cloth.  To clean brass, submerge the brass piece in a bath of salt and vinegar.  There is an electric reaction where the ions of sodium from the salt displaces the copper/ brass.  Do not allow to dry on. \n...or to clean copper pans, use ketchup and let set for awhile then rinse off.\n...or soak in Worcestershire sauce.\n...or dip half a lemon in kosher salt and rub well. Then polish with a soft cloth and beeswax for a deep, lasting copper shine.
655773
go to Craig's list and post an ad for free stating what you need.you can also look for what you need at this site as well