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Test tubes Ø42x300 mm, 250 ml 3pcs/box

https://www.velp.com/en-us/test-tubes-42x300-mm-250ml-3pcsbox.aspxTest tubes Ø42x300 mm, 250 ml 3pcs/box A00000144

Wireless barcode scanner

https://www.velp.com/en-us/wireless-barcode-scanner.aspxThe VELP crucibles, glass cups (Small, STD and Large) and test tubes Ø42x300 mm (A00000144) are now provided with an embedded barcode that can be scanned in order to transfer the data automatically by wireless connection.

Barcode scanner with USB socket

https://www.velp.com/en-us/barcode-scanner-with-usb-socket.aspxThe VELP crucibles, glass cups (Small, STD and Large) and test tubes Ø42x300 mm (A00000144) are now provided with an embedded barcode that can be scanned in order to transfer the data automatically by USB.

HOW TO CHOOSE THE CORRECT TEST TUBE FOR YOUR DISTILLATIONS

https://www.velp.com/en-us/how-to-choose-the-correct-test-tube-for-your-analysis.aspxStandard Distillation Test Tubes Applications : Total Kjeldahl Nitrogen determination, ammoniacal nitrogen, nitric nitrogen (Devarda), TVBN, sulphites, phenols, volatile acids and cyanides Sample weight : 0.1 – 5 g External Diameter : Ø42 mm Height : 300 mm Code : A00000144 Standard Test Tubes are widely used for protein determination on food , [...]