These scintillation vials are made of PP. Caps are made of HDPE.

• Easy removal of caps (¼ turn-twist), leakproof
• High degree of resistance to organic solvents
• Shoulderless vial features a full width opening of 23 mm for ease of access
• Sufficient translucence so that reagent levels or the presence of filter paper can be easily detected

The quality of the sealing system is such that it is not necessary to tighten the closure with a lot of pressure to achieve a leakproof seal. The HDPE closure may not be autoclaved.