The Salivette option can be quickly and easily identified using the cap colours:
Opaque white: Salivette with cotton swab without preparation (REF 51.1534)
Green: Salivette with cotton swab with citric acid preparation (REF 51.1534.001)
Blue: Salivette Cortisol with biocompatible synthetic swab without preparation (REF 51.1534.500)