Screw-Cap NMR Sample Tubes, 1 Pack 
Screw-Cap Septum NMR Tubes offer both convenience of a screw cap and that of a septum where material can be removed. Convenient screw-cap access with the security of a fluoropolymer (PTFE) seal. Supplied with open top cap & fluoropolymer/silicone septum for quick and clean access with a 22 gauge standard point needle.   

• 5mm
• 7" (178mm)
• 600 MHz
• Each Screw-Cap Tube comes complete with open top Polypropylene screw cap and PTFE/Silicone septum 
• Inert to most organic solvents and compounds but not recommended for use with strongly corrosive materials 
• Not recommended for multiple punctures

Screw-Cap NMR Tube Cap with Septum, 12 Pack
Compatible with 5mm or 10mm  Screw-Cap NMR Sample Tubes. Screw-Cap septum NMR tube caps offer both convenience of a screw cap and that of a septum where material can be removed. 

• Supplied with Fluoropolymer Silicon Septum
• 8-425 Thread

Solid Screw-Cap NMR Tube Cap without Septum, 12 Pack
Compatible with 5mm or 10mm  Screw-Cap NMR Sample Tubes. 

• 8-425 Thread

Standard Series™ High-Precision NMR Tubes, 5 Pack

• 5mm
• 400MHz 
• 7 Inch (178mm)
• For Routine NMR

Our “Standard Series™” NMR tubes are manufactured out of ASTM Type 1 Class B glass, commonly referred to as N-51A. Applications that are suited for using this type of glass are routine NMR where samples are run under room temperatures with no thermal gradients. It is therefore not recommended to fuse this glass with standard vacuum manifolds and the like, since these are generally made out of Type 1 Class A glass. Each NMR tube is checked for concentricity and camber specifications utilizing the latest computer technology.

Economy NMR Tube Caps, 100 Pack
Our economy NMR tube caps are now available in 12 different colors for better solvent labeling capabilities.

• 5mm
• Orange
• Ethylene-Vinyl Acetate

Economy NMR Tube Caps, 100 Pack
Our economy NMR tube caps are now available in 12 different colors for better solvent labeling capabilities.

• 5mm
• Purple
• Ethylene-Vinyl Acetate

Economy NMR Tube Caps, 100 Pack
Our economy NMR tube caps are now available in 12 different colors for better solvent labeling capabilities.

• 5mm
• Pink
• Ethylene-Vinyl Acetate

Economy NMR Tube Caps, 100 Pack
Our economy NMR tube caps are now available in 12 different colors for better solvent labeling capabilities.

• 5mm
• Sky
• Ethylene-Vinyl Acetate

Economy NMR Tube Caps, 100 Pack
Our economy NMR tube caps are now available in 12 different colors for better solvent labeling capabilities.

• 5mm
• Blue
• Ethylene-Vinyl Acetate

Economy NMR Tube Caps, 100 Pack
Our economy NMR tube caps are now available in 12 different colors for better solvent labeling capabilities.

• 5mm
• Green
• Ethylene-Vinyl Acetate