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

Fluorimeter quartz 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 could be:
Optical Glass, we say the type number start with "OG"
Infrared Quartz, Type number "IR"
UV Silica, we say "QS".