Standard size cuvettes
are the type most often used for routine laboratory testing.
Cuvettes include chemical resistant Teflon PTFE covers, with two frosted sides.

Fluorimeter cuvettes for fluorimetric applications.
Include covers of Teflon PTFE resin. No frosted sides.

Cylindrical Cuvettes
Are perfect for applications requiring large sample windows and volumes.
Include two stoppers of Teflon PTFE resin.

The material can be:
Optical Glass
Infrared Quartz
UV quartz