Glass Tubing
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 12 x 2 mm pyrex glass blowing tubing 6 pices x 12 $12.99 Time Remaining: 29d 12h 35m Buy It Now for only: $12.99 |
 74 pc glass pyrex kimax chemistry lab test tubes vilesflasksdroppers+ more $10.00 Time Remaining: 2d 2h 34m |
 10mm 3 8 HEAVY WALL BORO PYREX GLASS TUBING $19.99 Time Remaining: 29d 10h 21m Buy It Now for only: $19.99 |
 10 Count 12 x 75mm Borosilicate Glass Test Tubes New $2.99 (1 Bid) Time Remaining: 3d 5h 9m |
 6 big NEW glass test tubes Borosilicate Pyrex equiv large 25 x 150 $11.65 Time Remaining: 17d 6h 50m Buy It Now for only: $11.65 |
 6 Large new screw cap glass test tubes twist threaded no leaks $12.35 Time Remaining: 16d 7h 30m Buy It Now for only: $12.35 |
 24 40 Glass Tubing Link lid lab glass $3.99 (1 Bid) Time Remaining: 1d 1h 44m |
 10 BRAND NEW BOROSILICATE GLASS TEST TUBES FREE SHIPPING $5.79 Time Remaining: 13d 3h 22m Buy It Now for only: $5.79 |
 20 NEW pyrex glass test tubes cuvettes for spectronic 20 20D 20D+ $13.95 Time Remaining: 7d 23h 48m Buy It Now for only: $13.95 |
 Lab glass LOT bump trap flask boiling adapter rubber stoppers and tubing $34.99 Time Remaining: 1d 2h 55m |
 10 Pack 16x150mm Clear Glass Test Tubes High Quality 33 Borosilicate 201B1 $3.25 Time Remaining: 14d 17h 57m Buy It Now for only: $3.25 |
 5 Pieces of 10 mm od pyrex glass blowing tubing 12 $9.99 Time Remaining: 9d 10h 34m Buy It Now for only: $9.99 |
 40 Test tubes glass used $1.99 Time Remaining: 2d 17h 39m |
 Fisherbrand Glass Test Tubes Tube 18x150mm 125 PK $36.95 Time Remaining: 3d 1h 54m Buy It Now for only: $36.95 |
 Big lot of beakers flasks glass stoppers test tubes Pyrex mostly brand new $120.00 Time Remaining: 5d 2h 45m Buy It Now for only: $150.00 |
 Glass Pyrex Tube Tubing Cutter w blade Low Ship $12.59 Time Remaining: 23d 18h 43m Buy It Now for only: $12.59 |
 16 New Glass Test Tube Tubes 25x150mm $8.99 Time Remaining: 28d 1h 30m Buy It Now for only: $8.99 |
 PYREX Glass Tube Tubing 5 x 56 Damaged NEW $85.00 Time Remaining: 5d 3h 26m |
 60 Count 12 x 75mm Borosilicate Glass Test Tubes New $9.99 Time Remaining: 15d 8h 43m Buy It Now for only: $9.99 |
 250 Count 12 x 75mm Borosilicate Glass Test Tubes New $26.99 Time Remaining: 15d 8h 49m Buy It Now for only: $26.99 |
 PYREX Glass Tube Tubing 5 x 56 NEW $135.00 Time Remaining: 5d 3h 26m |
 5 Count 12 x 75mm Borosilicate Glass Test Tubes New $3.99 Time Remaining: 15d 8h 21m Buy It Now for only: $3.99 |
 ONE DOZEN 13 MM X 100 MM GLASS TEST TUBES NEW PYREX $3.99 Time Remaining: 22d 10h 29m Buy It Now for only: $3.99 |
 PYREX Glass Tube Tubing 5 x 56 Heavywall NEW $199.99 Time Remaining: 5d 3h 26m |
 Glass Tubing Cutter w Replaceable Blade Tube Pyrex $12.95 Time Remaining: 22h 44m Buy It Now for only: $12.95 |
 NEW Fisherbrand Glass Test Tubes Tube 10 x 75mm 250 pk $13.95 Time Remaining: 20d 7h 49m Buy It Now for only: $13.95 |
 LOT 84 Glass Test Tubes Labware Glassware w Caps $99.99 Time Remaining: 4d 23h 18m |
 2 big NEW glass test tubes Borosilicate Pyrex equiv large 25 x 150 $9.95 Time Remaining: 10d 3h 59m Buy It Now for only: $9.95 |
 Manometer Glass U Tube on Wooden Frame $5.00 Time Remaining: 3d 22h 12m |
 NEW CASE 250 16x150 Borosilicate Glass Culture Test Tubes 41A13 $24.99 Time Remaining: 19d 16h 36m Buy It Now for only: $24.99 |
 7 BRAND NEW BOROSILICATE GLASS TEST TUBES FREE SHIPPING $4.79 Time Remaining: 4d 3h 18m Buy It Now for only: $4.79 |
 Pyrex Lab Glass Bottle 2000cc 2000mL Aspirator Bottom Sidearm Outlet for Tubing $19.99 Time Remaining: 5d 2h 29m |
 Fifteen New Glass Test Tubes 75x12mm with PE Stoppers $7.89 Time Remaining: 16d 17h 9m Buy It Now for only: $7.89 |
 250 Small Test TubesBorosilicate glass akin to Pyrex Fisherbrand 14 961 26 H $19.00 Time Remaining: 11d 22h 33m Buy It Now for only: $19.00 |
 Pyrex Lab Glass Bottle 1000cc 1000mL Aspirator Bottom Sidearm Outlet for Tubing $9.99 Time Remaining: 5d 2h 28m |
 8 mm Pyrex glass tubing 12 inches long x 5 pieces glass blowing tubing Pyrex $8.99 Time Remaining: 20d 8h 49m Buy It Now for only: $8.99 |
 10 Glass Tubes Approx 5 Inches Long 1 4 Inch Diameter $4.00 Time Remaining: 27d 19h 55m Buy It Now for only: $4.00 |
 Kimble Glass Culture Tubes 25 x 150 mm New $16.99 Time Remaining: 5d 5h 14m Buy It Now for only: $29.50 |
 1675mm 66 Pyrex Borosilicate Glass Tubing 6 pc x 24 $34.99 Time Remaining: 23d 17h 16m Buy It Now for only: $34.99 |
 Kimble Glass Culture Tubes 16 x 150 mm New $16.99 Time Remaining: 5d 5h 9m Buy It Now for only: $29.99 |
 12 mm Pyrex glass tubing 12 inches x 5 pieces glass blowing tubing 1mm thick $11.99 Time Remaining: 7d 11h 18m Buy It Now for only: $11.99 |
 20 screw cap test tubes temperature resistant glass borosilicate tube Kimax $18.25 Time Remaining: 29d 8h 20m Buy It Now for only: $18.25 |
 West Condenser Corning Pyrex Kimax Glass Tube MINT Condition Never Used $9.95 Time Remaining: 4d 12h 42m |
 25 Glass Test Tube w Screw Cap 16 x 125 mm 5 Inch $22.49 Time Remaining: 27d 22h 8m Buy It Now for only: $22.49 |
 15 New Disposable Glass Test Tube Tubes 20x150mm $7.99 Time Remaining: 28d 6h 22m Buy It Now for only: $7.99 |
 800 glass connecting tubes connectors lab glassware glass connects $39.99 Time Remaining: 20h 20m |
 16x100mm Culture Test Tubes Borosilicate Glass New 12 pk Fast Shipping $1.50 Time Remaining: 28d 21h 44m Buy It Now for only: $1.50 |
 25pcs Glass Perfume Sample Vial Tubes Bottle 1ml black $3.69 Time Remaining: 16d 17h 7m Buy It Now for only: $3.69 |
 LAB GLASS GAS SAMPLE COLLECTING TUBE SAMPLER TUBE ECK KREBS 125 ml $14.99 Time Remaining: 6d 17h 39m |
 Flint Glass Tubing 24 in 16mm pk 5 Tube $21.95 Time Remaining: 7d 23h 36m Buy It Now for only: $21.95 |
 18 New Glass Test Tube Tubes 16 x 150mm 5 8 x 6 $7.99 Time Remaining: 6d 21h 20m Buy It Now for only: $7.99 |
 24 Glass Test Tubes10 x 75mm $3.99 Time Remaining: 16h 49m Buy It Now for only: $7.99 |
 NEW Case 72 count Test Tubes Kimble Exax Borosilicate Glass Temp Resistant L $19.99 Time Remaining: 28d 18h 5m Buy It Now for only: $19.99 |
 Receiver Delivery Adapter Joint 24 29 Laboratory Glassware Lab Glass Pyrex tube $5.99 Time Remaining: 4d 20h 16m |
 25pcs Glass Perfume Sample Vial Tubes Bottle 2ml black $3.99 Time Remaining: 3d 11h 23m Buy It Now for only: $3.99 |
 7 NEW 12 X 75mm BOROSILICATE GLASS TEST TUBES FREE SHIPPING $4.49 Time Remaining: 17d 16h 23m Buy It Now for only: $4.49 |
 250 Count 12 x 75mm Borosilicate Glass Culture Test Tubes New $15.99 (2 Bids) Time Remaining: 3d 5h 7m |
 Borosilicate glass tubing OD 50mm x ID 46mm x Length 1500mm $10.94 Time Remaining: 5d 10h 16m Buy It Now for only: $10.94 |
 20 Glass Test Tube w Screw Cap 20 x 150 mm 6 Inch $24.99 Time Remaining: 17d 23h 10m Buy It Now for only: $24.99 |
 MCI Mitsubishi Kasei VA 21 Water Vaporizer Glass Tube N2 $9.99 Time Remaining: 1d 4h 21m |
 Flint Glass Tubing 24 in 14mm pk 5 Tube $19.95 Time Remaining: 7d 23h 37m Buy It Now for only: $19.95 |
 New adapterdrying tube7524 40 jointlab glasswareglass adapter $13.01 Time Remaining: 6d 16h 43m Buy It Now for only: $13.01 |
 GLASS COLUMN U TUBE MAMOMETER $5.99 Time Remaining: 2d 2h 56m |
 10 Count 12 x 75mm Borosilicate Glass Test Tubes New $5.99 Time Remaining: 15d 8h 30m Buy It Now for only: $5.99 |
 LOT 122 Pyrex Glass Test Tubes Labware Glassware $99.99 Time Remaining: 4d 23h 44m |
 THREE DOZEN 10 MM X 75 MM GLASS TEST TUBES NEW PYREX $7.29 Time Remaining: 22d 10h 13m Buy It Now for only: $7.29 |
 Wintrobe Clay Adams Sedimentation Rack w Glass Tubes $100.00 Time Remaining: 29d 17h 40m Buy It Now for only: $100.00 |
 VWR Culture Tubes Disposable Borosilicate Glass $48.99 Time Remaining: 2d 22h 29m Buy It Now for only: $55.99 |
 250 pk New Glass Test Tube Tubes 10x75mm $13.95 Time Remaining: 27d 4h 3m Buy It Now for only: $13.95 |
 Culture Test Tubes 13x100mm 7mL Glass Borosilicate 1000 per case $20.00 Time Remaining: 1d 21h 22m Buy It Now for only: $20.00 |
 ADAPTER socket to rubber tube Lab Glass Glassware 24 29 right angle connection $6.99 Time Remaining: 6d 20h 30m |
 4 LAB GLASS BURET LAB BURETTE VARIOUS SIZES TUBE TUBING FITTINGS $24.99 Time Remaining: 22d 19h 21m Buy It Now for only: $24.99 |
 Fused quartz glass tubing OD 127 mm x ID 105 mm x Length 1240 mm $9.20 Time Remaining: 5d 10h 15m Buy It Now for only: $9.20 |
 10 Glass Test Tubes13 x 100mm $3.99 Time Remaining: 5d 14h 45m Buy It Now for only: $6.25 |
 Borosilicate glass tubing OD 25mm x ID 20mm x Length 1500mm $7.29 Time Remaining: 19d 5h 18m Buy It Now for only: $7.29 |
 10 stanard wall glass tubing 8 x 12 inches long $14.99 Time Remaining: 1d 22h 50m Buy It Now for only: $14.99 |
 ADAPTER socket Laboratory Glass Lab Glassware 24 29 tubing connect Science Tool $6.99 Time Remaining: 6d 20h 30m |
 LOT OF 11 KIMAX GLASS TEST TUBES 5 INCH $9.99 Time Remaining: 25d 16h 54m Buy It Now for only: $9.99 |
 New Receiver Delivery Adaptor Lab Glass Pyrex tube Piece 24 29 Adapter Supply nr $9.99 Time Remaining: 5d 20h 10m |
 ONE DOZEN 10 MM X 75 MM GLASS TEST TUBES NEW PYREX $3.29 Time Remaining: 18d 6h 54m Buy It Now for only: $3.29 |
 20 Glass Test Tube w Autoclavable Screw Cap 20 x 150 mm 6 Inch $27.99 Time Remaining: 1d 7h 4m Buy It Now for only: $27.99 |
 Alcan Amcor 22mm x1040mm Soda Lime Glass Tubing Pallet 24 bundles 1920pcs $2,000.00 Time Remaining: 6d 22h 31m Buy It Now for only: $2,400.00 |
 Ace Glass Drying Tube 14 20 $11.95 Time Remaining: 26d 5h 41m Buy It Now for only: $11.95 |
 4 screw cap test tubes temperature resistant glass borosilicate tube Kimax $9.31 Time Remaining: 16d 8h 21m Buy It Now for only: $9.31 |
 vintage glass tube with cork Blue Litmus paper $5.00 Time Remaining: 5d 21h 50m |
 1000 Count 12 x 75mm Borosilicate Glass Test Tubes New $34.99 Time Remaining: 15d 8h 58m Buy It Now for only: $34.99 |
 200mm x 30mm Glass Test Boiling Tubes Lab Pk5 NEW $15.79 Time Remaining: 23d 15h 26m Buy It Now for only: $15.79 |
 Alcan Amcor Glass Tubing 22mm x 1040mm 80pcs bundle COE 90 Tubing $90.00 Time Remaining: 6d 22h 30m Buy It Now for only: $150.00 |
 NEW Fisherbrand Glass Test Tube Tubes 12 x 75mm 250 pk $15.95 Time Remaining: 20d 6h 28m Buy It Now for only: $15.95 |
 Soda Lime Glass Tubing 2 pack Solar Lampwork High Quality $125.00 Time Remaining: 6d 22h 29m Buy It Now for only: $200.00 |
 16 New Glass Test Tube Tubes 25x150mm $8.99 Time Remaining: 26d 4h 58m Buy It Now for only: $8.99 |
 10 Glass Test Tube w Screw Cap 20 x 150 mm 6 Inch $16.99 Time Remaining: 21d 9h 29m Buy It Now for only: $16.99 |
 Schott AR Glas 15mm x 1150mm COE 90 Glass Tubing 144pcs bundle $90.00 Time Remaining: 6d 22h 30m Buy It Now for only: $150.00 |
 14 glass test tubes 150x 15mm lab glassware $1.99 Time Remaining: 27d 14h 14m Buy It Now for only: $1.99 |
 12 NEW 12 X 75mm BOROSILICATE GLASS TEST TUBES FREE SHIPPING $5.29 Time Remaining: 17d 22h 17m Buy It Now for only: $5.29 |
 25 ct NEW 13 x 100 7 ml glass test tubes flint lab chemistry $2.99 Time Remaining: 1d 17h 48m Buy It Now for only: $4.50 |
 Glass Melting Point Capillary Tube Open Both Ends $35.95 Time Remaining: 7d 10m Buy It Now for only: $35.95 |
 ONE DOZEN 16 MM X 150 MM GLASS TEST TUBES NEW PYREX $5.99 Time Remaining: 24d 7h 50m Buy It Now for only: $5.99 |
 25 ct NEW 16 x 100 15 ml glass test tubes flint lab chemistry $2.99 Time Remaining: 3d 17h 47m Buy It Now for only: $4.50 |
 Fisherbrand Glass Test Tube Tubes 25x150mm 125 pk NEW $74.95 Time Remaining: 26d 4h 20m Buy It Now for only: $74.95 |
Glass Tubing
Energy saving with LED fluorescent tubes
There are millions of general service fluorescent tubes in the market place today, until recently these were considered the most energy efficient lighting solution available. The downside to this for of lighting is that each tube contains a small amount of mercury vapour, a toxic heavy metal. This can provide not just a health risk when the tubes are broken, but can also accumulate in landfills before entering the water table or causing further pollution.
Fluorescent lamps use electricity to excite mercury vapour inside the glass tube and always require a ballast to regulate the flow of power through the lamp. A starter is in the circuit to heat the contact ends of the tube that ionizes the mercury vapour creating UV light. The inside of the tube is coated with a phosphor material that glows when exposed to the UV light produced by the mercury inside the fluorescent tube.
Recent developments in SMD (Surface Mount Diode) LED technology have now meant that LED based fluorescent tubes are now a reality. LEDs are a more efficient form of lighting product consisting of small chips of conductive material that release light when a current is applied to them. They contain no filaments and can produce up to 25 times more light per watt than conventional light bulbs.
LEDs require far less energy in their manufacture than fluorescent tubes, and only 3% of the energy they will consume over their life expectancy is consumed in their manufacture, and they are also produced from non toxic materials. The tubes are made from polycarbonate, a material that is more robust and durable than glass, so accidents will not require special cleanup procedures.
While LED technology is more expensive than existing fluorescents at face value, they will last up to 10 times as long, while consuming 65% less energy. In most general purpose lighting applications they additional cost of the LED technology will more than pay for itself within the first 18 months.
The only drawback is the tighter beam angle of the LEDs, while some tubes are manufactured from a polycarbonate light diffusing material, others have a narrow focus which may not be suitable for replacing existing tubes. Many fluorescent fixtures are designed with reflectors that help to distribute the light from the tubes evenly in their intended environment. This is a problem similar to what was faced when compact fluorescents began replacing incandescent light bulbs, this is a problem that will soon be overcome and allow faster adoption of this emerging lighting technology.
About the Author
Mike Brunt is a director of Specialized Lighting Concepts a New Zealand leader in LED lights and emerging lighting technologies.
what are the techniques in cutting glass tubing?
To cut a piece of glass tubing:
Create a scratch on the tubing surface by drawing the edge of a triangular file perpendicularly across the tubing. Only make one single, straight cut with a smooth movement of the hand. The scratch needs only to be about 1/8" long, so do not "saw" the glass with the file, or attempt to make a long scratch.
Moisten the scratch (water or saliva will work).
While protecting your hands with a towel, grasp the tubing with a hand on each side of the scratch, which should be facing away from you. Place your thumbs directly behind the scratch.
Using very little force, pull your hands away from each other and push with your thumbs. The tubing will break cleanly at the scratch.
Chemistry Safety 3